SecuriTricks - obfuscation

Follow the Smoke | China-nexus Threat Actors Hammer At the Doors of Top Tier Targets

The research outlines China-nexus threat actors targeting SentinelOne and other organizations between 2024 and 2025. It details intrusions into an IT services company managing SentinelOne's hardware logistics and reconnaissance of SentinelOne's servers. The attacks involved ShadowPad malware and a …

obfuscation

CVE-2024-1709

Published: June 10, 2025

Linked vulnerabilities : CVE-2024-8190 (CVSS 7.2), CVE-2024-8963 (CVSS 9.1), CVE-2024-1709, CVE-2023-46747

Downloadable IOCs: 24

Malware or LLM? Silent Werewolf employs new loaders to attack Russian and Moldovan organizations

Silent Werewolf has launched two new campaigns targeting Russian and Moldovan organizations, utilizing sophisticated loaders to deliver malicious payloads. The attacks employ phishing emails with ZIP attachments containing obfuscated C# loaders. These loaders use legitimate tools and code obfuscati…

Published: May 27, 2025

Downloadable IOCs: 28

Pixel-Perfect Trap: The Surge of SVG-Borne Phishing Attacks

The Trustwave SpiderLabs Email Security team has identified a significant increase in SVG image-based attacks, where seemingly harmless graphics are used to conceal dangerous links. Cybercriminals are exploiting the ability of SVG files to embed JavaScript, which can execute automatically upon open…

Published: May 16, 2025

Downloadable IOCs: 4

Actionable threat hunting with Threat Intelligence (I) - Hunting malicious desktop files

This analysis explores the detection of malicious .desktop files used by threat actors to infect Linux systems. It explains the structure of these files and how they are manipulated to obfuscate malicious content. The report details the execution process of these files, which often involve opening …

google threat intelligence

gnome

Published: May 16, 2025

Downloadable IOCs: 3

Excel(ent) Obfuscation: Regex Gone Rogue

A new Excel-based attack technique leverages recently introduced regex functions for advanced code obfuscation. The proof-of-concept demonstrates how malicious actors can use REGEXEXTRACT to hide PowerShell commands within large text blocks, significantly reducing antivirus detection rates. This me…

Published: May 15, 2025

Downloadable IOCs: 3

Technical Analysis of TransferLoader

TransferLoader is a newly identified malware loader active since February 2025. It comprises multiple components including a downloader, backdoor, and specialized loader. The malware employs various anti-analysis techniques and code obfuscation to hinder reverse engineering. TransferLoader has been…

Published: May 15, 2025

Downloadable IOCs: 7

DarkCloud Stealer: Comprehensive Analysis of a New Attack Chain That Employs AutoIt

Unit 42 researchers have identified a series of attacks distributing DarkCloud Stealer, an information-stealing malware that has been active since 2022. The latest attack chain incorporates AutoIt to evade detection and uses a file-sharing server to host the malware. The infection process begins wi…

Published: May 14, 2025

Linked vulnerabilities : CVE-2025-31324 (CVSS 10.0)

Downloadable IOCs: 4

Stealthy .NET Malware: Hiding Malicious Payloads as Bitmap Resources

This article discusses a new obfuscation technique used by threat actors to conceal malware within bitmap resources embedded in seemingly benign 32-bit .NET applications. The malware employs a multi-stage process to extract, deobfuscate, load, and execute secondary payloads, ultimately leading to t…

Published: May 9, 2025

Downloadable IOCs: 0

APT36-Style ClickFix Attack Spoofs Indian Ministry to Target Windows & Linux

A recent campaign attributed to APT36 has been observed spoofing India's Ministry of Defence to deliver cross-platform malware. The attackers used a ClickFix-style infection chain, mimicking government press releases and leveraging a compromised .in domain for payload staging. The campaign targeted…

clipboard-based execution

Published: May 6, 2025

Downloadable IOCs: 7

Lampion Is Back With ClickFix Lures

A highly focused malicious campaign targeting Portuguese organizations, particularly in government, finance, and transportation sectors, has been uncovered. The campaign is linked to Lampion malware, an infostealer focusing on banking information. The threat actors have incorporated ClickFix lures,…

Published: May 6, 2025

Downloadable IOCs: 10

wget to Wipeout: Malicious Go Modules Fetch Destructive Payload

Socket's research team discovered a supply-chain attack targeting Go developers through three malicious modules: prototransform, go-mcp, and tlsproxy. These modules used obfuscation techniques to deliver a disk-wiping payload, exploiting the open nature of Go's ecosystem. The attack leveraged names…

Published: May 2, 2025

Downloadable IOCs: 2

I StealC You: Tracking the Rapid Changes To Steal

StealC V2, introduced in March 2025, is an enhanced version of the popular information stealer and malware downloader. Key updates include a streamlined JSON-based C2 communication protocol with RC4 encryption, expanded payload delivery options (MSI packages and PowerShell scripts), and a redesigne…

obfuscation

amadey

credential harvesting

Published: May 2, 2025

Downloadable IOCs: 0

Emerging Phishing Techniques: New Threats and Attack Vectors

This analysis delves into four sophisticated phishing techniques observed in 2025. These include embedding Base64-encoded JavaScript in SVG files, hiding malicious URLs in PDF annotations, using OneDrive links to deliver dynamic phishing content, and nesting MHT files within OpenXML documents. Thes…

Published: April 28, 2025

Downloadable IOCs: 0

SnakeKeylogger – A Multistage Info Stealer Malware Campaign

This analysis explores a sophisticated malware campaign utilizing SnakeKeylogger, a credential-stealing threat. The attack begins with malicious spam emails containing disguised attachments. The infection chain involves multiple stages, including encrypted payload delivery, process hollowing, and s…

Published: April 24, 2025

Downloadable IOCs: 5

How Lumma Stealer sneaks into organizations

Lumma Stealer, a sophisticated information-stealing malware, has gained prominence in cybercriminal circles since 2022. It employs various distribution methods, with fake CAPTCHA pages being a notable vector. These pages mimic legitimate services and trick users into executing malicious commands. T…

Published: April 21, 2025

Downloadable IOCs: 15

Two sides of the same coin

This intelligence report analyzes the similarities between two previously separate APT groups, Team46 and TaxOff, concluding they are likely the same entity. The analysis covers their shared tactics, techniques, and procedures, including similar PowerShell commands, loader functionality, and infras…

Published: April 18, 2025

Downloadable IOCs: 0

A Deep Dive into Strela Stealer and how it Targets European Countries

Strela Stealer, an infostealer targeting email clients in specific European countries, has been active since late 2022. It focuses on exfiltrating credentials from Mozilla Thunderbird and Microsoft Outlook. The malware is delivered through phishing campaigns, primarily targeting Spain, Italy, Germa…

Published: April 13, 2025

Downloadable IOCs: 0

March 2025 APT Group Trends (South Korea)

This intelligence report analyzes Advanced Persistent Threat (APT) attacks in South Korea during March 2025. The majority of attacks were classified as spear phishing, with LNK file distribution being the most prevalent method. Two types of LNK-based attacks were identified: Type A, which uses a CA…

Published: April 10, 2025

Downloadable IOCs: 0

APT Targets South Korea with Deceptive PDF Lures

The Kimsuky APT group, also known as Black Banshee, has been actively targeting South Korean government entities using evolving tactics. Two distinct campaigns were uncovered, both utilizing government-themed PDF documents as lures. The infection chain begins with a phishing email containing a mali…

Published: April 4, 2025

Downloadable IOCs: 0

Typosquatted Go Packages Deliver Malware Loader Targeting Li...

A malicious campaign is targeting the Go ecosystem with typosquatted packages that install hidden loader malware on Linux and macOS systems. The threat actor has published at least seven packages impersonating popular Go libraries, using array-based string obfuscation to hide malicious commands. Th…

Published: April 4, 2025

Downloadable IOCs: 0

The Shelby Strategy

The SHELBY malware family exploits GitHub for command-and-control operations, employing sophisticated techniques to evade detection. The malware consists of a loader (SHELBYLOADER) and a backdoor (SHELBYC2), both obfuscated using Obfuscar. SHELBYLOADER employs various sandbox detection methods and …

Published: April 1, 2025

Downloadable IOCs: 0

Delivering Trojans Via ClickFix Captcha

A new social engineering technique exploiting ClickFix Captcha has emerged as an effective method for delivering various types of malware, including Quakbot. This technique deceives users and bypasses security measures by utilizing a seemingly harmless captcha. The process involves redirecting user…

Published: April 1, 2025

Downloadable IOCs: 0

Analysis: SmokeLoader malware distribution

A malicious campaign targeting First Ukrainian International Bank has been observed using the Emmenhtal loader to distribute SmokeLoader malware. The infection chain begins with a deceptive email containing a 7z archive, which extracts to reveal a bait PDF and a shortcut file. The shortcut download…

Published: March 31, 2025

Downloadable IOCs: 0

SnakeKeylogger: Multistage Info Stealer Malware Analysis & Prevention

SnakeKeylogger is a highly active credential-stealing malware targeting individuals and businesses. It employs a multi-stage infection chain, starting with malicious spam emails containing .img files. The malware uses sophisticated techniques like process hollowing and obfuscation to evade detectio…

Published: March 25, 2025

Downloadable IOCs: 2

Unboxing Anubis: Exploring the Stealthy Tactics of FIN7's Latest Backdoor

FIN7, a notorious cybercrime group, has developed a new Python-based backdoor called AnubisBackdoor. This sophisticated tool employs multi-stage attacks, encryption, and obfuscation techniques to evade detection. The malware is distributed through phishing campaigns and uses AES encryption with mul…

Published: March 20, 2025

Downloadable IOCs: 0

Shedding light on the ABYSSWORKER driver

The ABYSSWORKER driver is a malicious tool used in conjunction with MEDUSA ransomware to disable anti-malware systems. It employs a HEARTCRYPT-packed loader and a revoked certificate-signed driver to target and silence EDR vendors. The driver imitates a legitimate CrowdStrike Falcon driver and uses…

Published: March 20, 2025

Downloadable IOCs: 2

New Steganographic Campaign Distributing Multiple Malware Variants

A sophisticated steganographic campaign has been observed distributing multiple stealer malware variants, including Remcos, DcRAT, AgentTesla, and VIPKeyLogger. The infection chain begins with a phishing email containing an Excel file that exploits CVE-2017-0199. This leads to the download of an HT…

Published: March 17, 2025

Linked vulnerabilities : CVE-2017-0199

Downloadable IOCs: 13

Credit Card Skimmer and Backdoor on WordPress E-commerce Site

A sophisticated malware attack targeting WordPress WooCommerce sites was discovered, involving multiple components: a credit card skimmer, a hidden backdoor file manager, and a reconnaissance script. The attack focused on financial gain and long-term control. The skimmer, injected into the checkout…

Published: March 15, 2025

Downloadable IOCs: 0

VHDs Used to Distribute VenomRAT and Other Malware

A phishing campaign is utilizing virtual hard disk (VHD) image files to deliver VenomRAT malware. The attack begins with a purchase order-themed email containing a ZIP archive with a VHD file. When opened, the VHD mounts as a drive and executes a heavily obfuscated batch script. This script employs…

Published: March 14, 2025

Downloadable IOCs: 0

New XCSSET malware adds new obfuscation, persistence techniques to infect Xcode projects

Microsoft Threat Intelligence has discovered a new variant of XCSSET, a sophisticated macOS malware that infects Xcode projects. This latest version features enhanced obfuscation methods, updated persistence mechanisms, and new infection strategies. The malware steals and exfiltrates files, system …

Published: March 11, 2025

Downloadable IOCs: 31

Malicious Packages Identified in the Wild: Insights and Trends from November 2024 Onward

FortiGuard Labs has analyzed malicious software packages detected from November 2024 to March 2025, revealing various attack techniques used to exploit system vulnerabilities. Key findings include 1,082 packages with low file counts, 1,052 packages with suspicious install scripts, and 1,043 package…

vulnerability exploitation

2025-03-10

install scripts

software packages

Published: March 10, 2025

Downloadable IOCs: 11

Booking a Threat: Inside LummaStealer's Fake reCAPTCHA

A new malicious campaign targeting booking websites has been discovered, utilizing LummaStealer, an info-stealer operating under a Malware-as-a-Service model. The attack employs fake CAPTCHAs to trick users into executing malicious PowerShell commands. Initially targeting the Philippines, the campa…

indirect control flow

Published: March 4, 2025

Downloadable IOCs: 12

Uncovering .NET Malware Obfuscated by Encryption and Virtualization

This article examines advanced obfuscation techniques used in popular malware families like Agent Tesla, XWorm, and FormBook/XLoader. The techniques include code virtualization, staged payload delivery, dynamic code loading, AES encryption, and multi-stage payloads. The malware uses a three-stage p…

Published: March 3, 2025

Downloadable IOCs: 11

Fake WordPress Plugin Impacts SEO by Injecting Casino Spam

A recent investigation uncovered a malicious WordPress plugin disguised as an innocent security tool, injecting casino spam into website footers. The attackers employed obfuscation techniques and cURL to fetch data from a remote URL, decrypting it using XOR encryption. The malware retrieves a set o…

Published: February 27, 2025

Downloadable IOCs: 1

Demystifying PKT and Monero Cryptocurrency deployed on MSSQL servers

This analysis examines a recent cryptocurrency mining operation targeting MSSQL servers, focusing on PKT Classic and Monero cryptocurrencies. The attack exploits vulnerabilities to deploy mining tools, including PacketCrypt for PKT and XMRIG for Monero. The process involves using Windows utilities …

obfuscation

xmrig

exploitation

cryptocurrency mining

Published: February 20, 2025

Downloadable IOCs: 0

XWorm Cocktail: A Mix of PE data with PowerShell Code

A malicious file discovered on VirusTotal triggered a PowerShell rule, leading to the investigation of two closely related files identified as 'data files' but named as executables. The files contain a mix of PowerShell code, binary data, and obfuscated text. Analysis revealed characteristics of XW…

Published: February 19, 2025

Downloadable IOCs: 3

Technical Analysis of Xloader Versions 6 and 7

This analysis examines the latest versions of Xloader malware, focusing on its advanced obfuscation techniques. Xloader, successor to Formbook, is an information stealer targeting browsers, email clients, and FTP applications. The malware employs complex encryption layers to protect critical code a…

Published: January 28, 2025

Downloadable IOCs: 261

Sneaky 2FA: exposing a new AiTM Phishing-as-a-Service

A new Adversary-in-the-Middle (AiTM) phishing kit called Sneaky 2FA has been discovered targeting Microsoft 365 accounts. The kit is sold as Phishing-as-a-Service by a cybercrime service called Sneaky Log, which operates via a Telegram bot. Sneaky 2FA uses anti-bot and anti-analysis features, authe…

Published: January 17, 2025

Downloadable IOCs: 26

Play Ransomware impersonates SentinelOne for stealth recon

A Play ransomware attack involving a reconnaissance tool called Grixba was detected and prevented. The attack began with the deployment of Grixba via RDP to a Windows server. The Grixba file was disguised as legitimate SentinelOne software, a new tactic for the group. Grixba is an obfuscated .NET-b…

sentinelone impersonation

xor encryption

Published: January 17, 2025

Downloadable IOCs: 4

RansomHub Affiliate leverages Python-based backdoor

A threat actor utilized a Python-based backdoor to maintain access to compromised endpoints, later deploying RansomHub encryptors across the impacted network. The malware, an updated version of a previously documented backdoor, features obfuscation, deployment via RDP, and unique indicators of comp…

Published: January 16, 2025

Downloadable IOCs: 6

Infostealer LummaC2 Spreading Through Fake CAPTCHA Verification Page

A new distribution method for the LummaC2 infostealer malware has been identified, using a fake CAPTCHA verification page. The process begins with a deceptive authentication screen that copies a malicious command to the clipboard when users click 'I'm not a robot'. This command executes an obfuscat…

Published: January 13, 2025

Downloadable IOCs: 4

Modiloader From Obfuscated Batch File

An investigation of a file named 'Albertsons_payment.GZ' revealed a sophisticated malware delivery chain. The file, initially disguised as an image, was actually a Windows Cabinet file containing an obfuscated batch script. This script employed string slicing techniques to reconstruct commands and …

obfuscation

modiloader

2024-12-23

Published: December 23, 2024

Downloadable IOCs: 5

A new playground: Malicious campaigns proliferate from VSCode to npm

This intelligence details the emergence of malicious campaigns spreading from VSCode to npm. Researchers observed an increasing amount of malicious activity in VSCode Marketplace, with threat actors using npm packages to inject malicious code into VSCode IDE. The campaign initially targeted the cry…

software supply chain

Published: December 19, 2024

Downloadable IOCs: 2

A Deep Dive into TeamTNT and Spinning YARN

TeamTNT is conducting a crypto mining campaign called Spinning YARN, targeting Docker, Redis, YARN, and Confluence. The attack involves server-side scripting vulnerabilities, obfuscated code, and malware deployment. The malware assesses the environment, disables cloud security, establishes persiste…

Published: December 18, 2024

Downloadable IOCs: 35

NetSupport RAT and RMS in malicious emails

The Horns&Hooves campaign, active since March 2023, targets Russian businesses with malicious email attachments containing scripts that install NetSupport RAT or BurnsRAT. The campaign evolved through several versions, improving obfuscation and delivery methods. It uses decoy documents and legitima…

Published: December 2, 2024

Downloadable IOCs: 35

Malicious PyPI crypto pay package aiocpa implants infostealer code

ReversingLabs detected a malicious package named 'aiocpa' on PyPI, engineered to compromise cryptocurrency wallets. Unlike typical attacks, the actors published their own crypto client tool to attract users before compromising them through a malicious update. The package appeared legitimate, with m…

software supply chain

2024-11-29

threat hunting

Published: November 29, 2024

Downloadable IOCs: 0

Credit Card Skimmer Malware Targeting Magento Checkout Pages

A sophisticated credit card skimmer malware has been discovered targeting Magento-powered eCommerce websites, specifically their checkout processes. The malware dynamically creates a fake credit card form or extracts payment fields, activating only on checkout pages. It uses advanced obfuscation te…

Published: November 27, 2024

Downloadable IOCs: 0

HEXON STEALER: THE LONG JOURNEY OF COPYING, HIDING, AND REBRANDING

Hexon Stealer, a malware capable of extracting sensitive information from browsers, has emerged as a rebranded version of Stealit Stealer. It utilizes the Electron framework and NSIS installer format to target browser cookies, credentials, and crypto-wallets. The malware grants full remote access t…

Published: November 23, 2024

Downloadable IOCs: 0

Raspberry Robin Analysis

Raspberry Robin, a malicious downloader discovered in 2021, has been circulating for years, primarily spreading through infected USB devices. It stands out due to its unique binary-obfuscation techniques, extensive use of anti-analysis methods, and privilege escalation exploits. The malware uses mu…

Published: November 19, 2024

Linked vulnerabilities : CVE-2021-31969, CVE-2024-26229

Downloadable IOCs: 126

PHP Reinfector and Backdoor Malware Target WordPress Sites

A sophisticated PHP reinfector and backdoor malware is targeting WordPress websites, infecting plugin files and database tables. The malware reinfects active plugins, manipulates wp_options and wp_posts tables, and creates malicious admin users. It utilizes WordPress's cron system to maintain contr…

database manipulation

Published: November 14, 2024

Downloadable IOCs: 0

New threat targeting macOS discovered

Jamf Threat Labs uncovered malware samples linked to North Korea, built using Flutter, which provides inherent obfuscation. The malware, discovered in late October, includes Go, Python, and Flutter variants. The Flutter-built application presents a minesweeper game while making network requests to …

Published: November 13, 2024

Downloadable IOCs: 0

Hello again, FakeBat: popular loader returns after months-long hiatus

FakeBat, a loader previously known as Eugenloader and PaykLoader, has resurfaced after a three-month absence. The malware was distributed through a malicious Google ad impersonating the productivity application Notion. The attack chain involves a tracking template, cloaking domain, and a decoy site…

Published: November 11, 2024

Downloadable IOCs: 19

Malware Steals Account Credentials

A malicious script targeting e-commerce sites, particularly Magento, has been discovered. The script, found in the dataPost.js file, is heavily obfuscated and designed to steal customer account credentials and admin login details. It waits for login actions to trigger, then scrapes data entered int…

Published: November 9, 2024

Downloadable IOCs: 0

Analysis of AsyncRAT's Infection Tactics via Open Directories

This analysis explores two distinct methods used to infect systems with AsyncRAT through open directories. The first technique involves a multi-stage process using various obfuscated scripts (VBS, BAT, PowerShell) and disguised files to download and execute the AsyncRAT payload. The second method e…

multi-stage infection

Published: November 7, 2024

Downloadable IOCs: 15

Attempts to disrupt Russian businesses with MetaStealer

A previously unknown threat actor, Venture Wolf, has been targeting Russian businesses since November 2023. The group uses multiple loaders to deliver MetaStealer, a malware that focuses on manufacturing, construction, IT, and telecommunications industries. The campaign involves disseminating archi…

Published: November 5, 2024

Downloadable IOCs: 20

G700: The Next Generation of Craxs RAT

G700 RAT, an advanced variant of Craxs RAT, targets Android devices and cryptocurrency applications. It employs sophisticated techniques like privilege escalation, phishing, and malicious APK distribution to infiltrate devices. The malware bypasses authentication, captures sensitive data, and manip…

transaction hijacking

sms interception

g700 rat

Published: November 4, 2024

Downloadable IOCs: 3

Threat actors use copyright infringement phishing lure to deploy infostealers

An unknown threat actor is conducting a phishing campaign targeting Facebook business and advertising account users in Taiwan. The campaign uses emails impersonating legal departments, claiming copyright infringement to lure victims into downloading malware. The attackers abuse Google's Appspot dom…

Published: October 31, 2024

Downloadable IOCs: 0

Inside the Latrodectus Malware Campaign

The Latrodectus malware campaign employs a combination of traditional phishing techniques and innovative payload delivery methods to target financial, automotive, and healthcare sectors. The attack chain begins with compromised emails containing malicious PDF or HTML attachments, which redirect use…

Published: October 21, 2024

Downloadable IOCs: 20

The Mobile Malware Chronicles: Necro.N - Volume 101

Zimperium's zLabs researchers have been tracking Necro.N, a highly intrusive mobile malware campaign, since July. This malware, potentially succeeding Joker, uses obfuscation and steganography to hide malicious payloads within images. It downloads payloads from C2 servers, enabling remote code exec…

Published: October 21, 2024

Downloadable IOCs: 6

The Mongolian Skimmer: different clothes, equally dangerous

This report details the analysis of a skimming campaign, dubbed the 'Mongolian Skimmer,' which utilizes an obfuscation technique involving unusual Unicode characters for variable and function names. While initially appearing as a novel obfuscation approach, it ultimately employs well-known JavaScri…

Published: October 14, 2024

Downloadable IOCs: 13

Malware by the (Bit)Bucket: Uncovering AsyncRAT

A sophisticated attack campaign using Bitbucket as a legitimate platform to deliver AsyncRAT has been uncovered. The multi-stage approach involves a VBScript obfuscation layer, followed by a PowerShell payload delivery mechanism, and culminates in the execution of AsyncRAT. The attackers exploit Bi…

Published: October 10, 2024

Downloadable IOCs: 0

Tweaking AsyncRAT: Using Python and TryCloudflare to Deploy Malware

A new AsyncRAT malware campaign utilizes TryCloudflare quick tunnels and Python packages to deliver malicious payloads. The attack chain involves HTML attachments with 'search-ms' URI protocol handlers, leading to LNK files that download BAT files. These BAT files then retrieve and execute Python s…

Published: October 4, 2024

Downloadable IOCs: 15

Security Brief: Royal Mail Lures Deliver Open Source Prince Ransomware

A campaign impersonating Royal Mail was identified delivering Prince ransomware, an open-source variant available on GitHub. The low-volume attack targeted UK and US organizations in mid-September, often originating from contact forms on target websites. The ransomware lacks decryption mechanisms a…

Published: October 2, 2024

Downloadable IOCs: 3

North Korea Still Attacking Developers via npm

Recent weeks have seen a resurgence of North Korean-aligned groups targeting developers through npm packages. The campaign, which began on August 12, 2024, involves multiple groups using various publication patterns and attack types. The malicious packages contain obfuscated JavaScript that downloa…

Published: September 30, 2024

Downloadable IOCs: 12

A SOC Team’s Guide to Detecting macOS Atomic Stealers

This article provides an analysis of the Atomic Infostealer malware family, which has been targeting macOS users throughout 2024. It discusses the various evolving variants, such as Amos, Banshee, Cthulu, Poseidon, and RodrigoStealer, developed and distributed by competing threat actor groups. The …

Published: September 13, 2024

Downloadable IOCs: 3

Analyzing the Mekotio Trojan

The analysis delves into the Mekotio Trojan, a sophisticated malware that employs a PowerShell dropper to execute its payload. The dropper employs obfuscation techniques, such as custom XOR decryption, to conceal its operations. It collects system information, communicates with a command-and-contro…

Published: August 30, 2024

Downloadable IOCs: 2

Threat Tracking: Analysis of Lilith RAT ported to AutoIt Script

In April 2024, S2W's Threat Research and Intelligence Center TALON analyzed a malicious LNK file disguised as a list of tax evasion explanatory documents. The LNK file executed a PowerShell command to download and run an AutoIt script-based Lilith RAT malware from an attacker's server, which establ…

Published: August 23, 2024

Downloadable IOCs: 33

Decoding the Stealthy Memory-Only Malware

This intelligence report provides an in-depth analysis of a complex, multi-stage malware campaign called PEAKLIGHT. It details the infection chain, starting with movie lure ZIP files containing malicious LNK files that initiate a JavaScript dropper. This dropper then executes a PowerShell downloade…

Published: August 23, 2024

Downloadable IOCs: 23

Exploring the D3F@ck Malware-as-a-Service Loader

This report analyzes the D3F@ck Loader, a malware-as-a-service (MaaS) offering orchestrated by an individual going by the alias Sergei Panteleevich. The loader utilizes various evasion techniques, including the use of Extended Validation certificates, Inno Setup installers with custom Pascal script…

Published: August 19, 2024

Linked vulnerabilities : CVE-2024-7593 (CVSS 9.8)

Downloadable IOCs: 4

Ande Loader Leads to 0bj3ctivity Stealer Infection

In July 2024, eSentire's Threat Response Unit observed a phishing attack leading to a 0bj3ctivity Stealer malware infection. The attack involved a malicious JavaScript file that retrieved and executed Ande Loader and the 0bj3ctivity Stealer. Ande Loader created persistence, downloaded additional pa…

Published: August 12, 2024

Downloadable IOCs: 2

Detecting evolving threats: NetSupport RAT campaign

This analysis examines a recent malware campaign that utilizes the NetSupport RAT, a legitimate remote administration tool, for persistent infections. The threat actors behind this campaign employ obfuscation techniques and updates to evade detection. However, by identifying weaknesses in the obfus…

Published: August 2, 2024

Downloadable IOCs: 3

Malicious Inauthentic Falcon Crash Reporter Installer Distributed to German Entity

On July 24, 2024, CrowdStrike Intelligence identified an unattributed spearphishing attempt delivering an inauthentic installer impersonating CrowdStrike's Crash Reporter through a website targeting a German entity. The site utilized JavaScript obfuscation to deliver the malicious installer, which …

Published: July 31, 2024

Downloadable IOCs: 5

'Evil Twin' Apps Spread for Multiple Fraud Schemes

HUMAN's Satori Threat Intelligence and Research team recently uncovered a massive ad fraud operation dubbed Konfety, involving threat actors operating 'evil twin' versions of 'decoy twin' apps available on major app marketplaces. The decoy twins on official stores behave normally, while the evil tw…

Published: July 17, 2024

Downloadable IOCs: 0

Braodo Info Stealer Targeting Vietnam and Abroad

CYFIRMA discovered Braodo Stealer, a Python-based malware active since early 2024, primarily targeting users in Vietnam but also present in the US, Czechia, Germany, Netherlands, Singapore, and the UK. This malware utilizes GitHub and a Singapore-based VPS server to host and distribute its maliciou…

Published: July 15, 2024

Downloadable IOCs: 14

Analysis of Suspected APT Attack Activities by “Silver Fox”

This document examines the recent activities of the Silver Fox cybercrime group, which has traditionally targeted financial and tax entities but has now shifted its focus towards impersonating national institutions and security companies. The analysis involves a phishing website, Winos remote contr…

Published: July 10, 2024

Downloadable IOCs: 7

Distribution of AsyncRAT Disguised as Ebook

This analysis covers the distribution of AsyncRAT malware disguised as an ebook. The compressed file contains a malicious LNK and PowerShell scripts that ultimately execute AsyncRAT. The malware employs various techniques, such as obfuscation, task scheduling, and anti-VM and anti-AV capabilities, …

Published: July 10, 2024

Downloadable IOCs: 5

Examining Water Infection Routine Leading to an XMRig Cryptominer

This report details the multi-stage loading technique utilized by the threat actor Water Sigbin to deliver the PureCrypter loader and XMRig cryptocurrency miner. The actor exploits vulnerabilities in Oracle WebLogic servers, employing fileless execution tactics like DLL reflective and process injec…

vulnerability exploitation

multi-stage loading

Published: June 28, 2024

Linked vulnerabilities : CVE-2023-21839, CVE-2017-3506

Downloadable IOCs: 13

New InnoSetup Malware Created Upon Each Download Attempt

A security intelligence report describing a new malware distribution technique where malicious code is dynamically generated for each download attempt, evading detection through unique hash values. The malware, termed 'InnoLoader', disguises itself as legitimate software installers, executing a com…

Published: June 27, 2024

Downloadable IOCs: 32

DBatLoader Distributed via CMD Files

A cybersecurity analysis has identified a malicious operation involving the distribution of a downloader, dubbed DBatLoader or ModiLoader, through CMD files disguised as innocuous files. The campaign leverages phishing emails containing compressed CMD files that, when executed on English-language W…

Published: June 27, 2024

Downloadable IOCs: 0

StrelaStealer Resurgence: Tracking a JavaScript-Driven Credential Stealer Targeting Europe

Recent observations indicate a surge in JavaScript spreading StrelaStealer, a credential stealer specifically targeting Outlook and Thunderbird email credentials. While the infection chain resembles previous versions, additional checks have been implemented to avoid compromising systems in Russia. …

Published: June 25, 2024

Downloadable IOCs: 5

Dipping into Danger: The WARMCOOKIE backdoor

Elastic Security Labs identified a new wave of email campaigns targeting environments by deploying a novel backdoor dubbed WARMCOOKIE, which communicates via HTTP cookie parameters. The malware is an initial tool used to scout victim networks and deploy additional payloads, with hard-coded command …

Published: June 12, 2024

Downloadable IOCs: 6

RAT Distributed as UUEncoding (UUE) File

This intelligence report describes a malicious operation where the Remcos Remote Access Trojan (RAT) is being disseminated through phishing emails containing an attachment exploiting the Unix-to-Unix Encoding (UUE) technique. The encoded file loads an obfuscated VBScript that fetches additional mal…

Published: June 11, 2024

Downloadable IOCs: 3

New Agent Tesla Campaign Targeting Spanish-Speaking People

This report analyzes a phishing campaign spreading a new Agent Tesla variant designed to infiltrate victims' computers and steal sensitive information like credentials, email contacts, and system details. It leverages techniques like exploiting Microsoft Office vulnerabilities, executing JavaScript…

Published: June 10, 2024

Linked vulnerabilities : CVE-2017-11882, CVE-2017-0199

Downloadable IOCs: 6

Malicious Campaign Analysis: JScript RAT and CobaltStrike

This report examines a recent malicious campaign involving a JScript-based Remote Access Trojan (RAT) and its connections to the CobaltStrike penetration testing tool. The attack commences with an obfuscated JScript loader distributed through suspected phishing campaigns. Upon execution, it contact…

Published: June 7, 2024

Downloadable IOCs: 4

DarkGate again but... Improved?

The report details the latest developments surrounding the DarkGate remote access trojan, including its enhanced capabilities in version 6, the activities of its developer RastaFarEye, and an in-depth analysis of the malware's new features, execution chain, and supported commands. It highlights Dar…

Published: June 6, 2024

Downloadable IOCs: 313

Wineloader - Analysis of the Infection Chain

The analysis examines the Wineloader backdoor, a modular malware attributed to the APT29 threat group, which allows further tools or modules to be downloaded through an encrypted command and control channel. It starts with a phishing email luring targets with a wine tasting event invitation. Execut…

Published: June 6, 2024

Downloadable IOCs: 9

From Document to Script: Insides of Campaign

This report examines a recent malicious campaign initiated via phishing emails, seemingly from 'QuickBooks,' prompting users to install Java. Clicking the embedded link leads to downloading a malicious JAR file. The JAR contains commands to fetch additional payloads, including an obfuscated AutoIt …

Published: May 17, 2024

Downloadable IOCs: 11

Malware (XMRig, OrcusRAT, etc.) disguised as MS Office crack

The report details an ongoing malware campaign targeting South Korean users, which disguises malicious payloads as cracked versions of Microsoft Office and other popular software. The attackers are distributing a variety of malware, including downloaders, coin miners, remote access tools (RATs), pr…

Published: May 10, 2024

Downloadable IOCs: 12

macOS Cuckoo Stealer | Ensuring Detection and Defense as New Samples Rapidly Emerge

This analysis discusses the emergence of a new macOS malware family called 'Cuckoo Stealer', which acts as an infostealer and spyware. It describes Cuckoo Stealer's main features, logic, and provides indicators of compromise to assist threat hunters and defenders. The malware employs techniques lik…

Published: May 10, 2024

Downloadable IOCs: 4

RemcosRAT Distributed Using Steganography

Security researchers have discovered a campaign distributing RemcosRAT through a sophisticated infection chain involving steganography techniques. The attack starts with a malicious Word document exploiting template injection, leading to the download of an RTF file that leverages an equation editor…

Published: May 8, 2024

Downloadable IOCs: 4

Tag: obfuscation

Attack reports

Follow the Smoke | China-nexus Threat Actors Hammer At the Doors of Top Tier Targets

Abusing Paste.ee to Deploy XWorm and AsyncRAT Across Global C2 Infrastructure

The strange tale of ischhfd83: When cybercriminals eat their own

Russian Unit 26165 Targets Western Logistics and Technology Companies

Malware or LLM? Silent Werewolf employs new loaders to attack Russian and Moldovan organizations

Pixel-Perfect Trap: The Surge of SVG-Borne Phishing Attacks

Actionable threat hunting with Threat Intelligence (I) - Hunting malicious desktop files

Excel(ent) Obfuscation: Regex Gone Rogue

Technical Analysis of TransferLoader

DarkCloud Stealer: Comprehensive Analysis of a New Attack Chain That Employs AutoIt

Stealthy .NET Malware: Hiding Malicious Payloads as Bitmap Resources

APT36-Style ClickFix Attack Spoofs Indian Ministry to Target Windows & Linux

Lampion Is Back With ClickFix Lures

wget to Wipeout: Malicious Go Modules Fetch Destructive Payload

I StealC You: Tracking the Rapid Changes To Steal

Emerging Phishing Techniques: New Threats and Attack Vectors

SnakeKeylogger – A Multistage Info Stealer Malware Campaign

How Lumma Stealer sneaks into organizations

Two sides of the same coin

A Deep Dive into Strela Stealer and how it Targets European Countries

March 2025 APT Group Trends (South Korea)

APT Targets South Korea with Deceptive PDF Lures

Typosquatted Go Packages Deliver Malware Loader Targeting Li...

The Shelby Strategy

Delivering Trojans Via ClickFix Captcha

Analysis: SmokeLoader malware distribution

SnakeKeylogger: Multistage Info Stealer Malware Analysis & Prevention

Unboxing Anubis: Exploring the Stealthy Tactics of FIN7's Latest Backdoor

Shedding light on the ABYSSWORKER driver

New Steganographic Campaign Distributing Multiple Malware Variants

Credit Card Skimmer and Backdoor on WordPress E-commerce Site

VHDs Used to Distribute VenomRAT and Other Malware

New XCSSET malware adds new obfuscation, persistence techniques to infect Xcode projects

Malicious Packages Identified in the Wild: Insights and Trends from November 2024 Onward

Booking a Threat: Inside LummaStealer's Fake reCAPTCHA

Uncovering .NET Malware Obfuscated by Encryption and Virtualization

Fake WordPress Plugin Impacts SEO by Injecting Casino Spam

Demystifying PKT and Monero Cryptocurrency deployed on MSSQL servers

XWorm Cocktail: A Mix of PE data with PowerShell Code

Technical Analysis of Xloader Versions 6 and 7

Sneaky 2FA: exposing a new AiTM Phishing-as-a-Service

Play Ransomware impersonates SentinelOne for stealth recon

RansomHub Affiliate leverages Python-based backdoor

Infostealer LummaC2 Spreading Through Fake CAPTCHA Verification Page

Modiloader From Obfuscated Batch File

A new playground: Malicious campaigns proliferate from VSCode to npm

A Deep Dive into TeamTNT and Spinning YARN

NetSupport RAT and RMS in malicious emails

Malicious PyPI crypto pay package aiocpa implants infostealer code

Credit Card Skimmer Malware Targeting Magento Checkout Pages

HEXON STEALER: THE LONG JOURNEY OF COPYING, HIDING, AND REBRANDING

Raspberry Robin Analysis

PHP Reinfector and Backdoor Malware Target WordPress Sites

New threat targeting macOS discovered

Hello again, FakeBat: popular loader returns after months-long hiatus

Malware Steals Account Credentials

Analysis of AsyncRAT's Infection Tactics via Open Directories

Attempts to disrupt Russian businesses with MetaStealer

G700: The Next Generation of Craxs RAT

Threat actors use copyright infringement phishing lure to deploy infostealers

Inside the Latrodectus Malware Campaign

The Mobile Malware Chronicles: Necro.N - Volume 101

The Mongolian Skimmer: different clothes, equally dangerous

Malware by the (Bit)Bucket: Uncovering AsyncRAT

Tweaking AsyncRAT: Using Python and TryCloudflare to Deploy Malware

Security Brief: Royal Mail Lures Deliver Open Source Prince Ransomware

North Korea Still Attacking Developers via npm

A SOC Team’s Guide to Detecting macOS Atomic Stealers

Analyzing the Mekotio Trojan

Threat Tracking: Analysis of Lilith RAT ported to AutoIt Script

Decoding the Stealthy Memory-Only Malware

Exploring the D3F@ck Malware-as-a-Service Loader

Ande Loader Leads to 0bj3ctivity Stealer Infection

Detecting evolving threats: NetSupport RAT campaign

Malicious Inauthentic Falcon Crash Reporter Installer Distributed to German Entity

'Evil Twin' Apps Spread for Multiple Fraud Schemes

Braodo Info Stealer Targeting Vietnam and Abroad

Analysis of Suspected APT Attack Activities by “Silver Fox”