A detailed analysis of a sophisticated intrusion targeting a cryptocurrency foundation employee is presented. The attack, attributed to the North Korean APT group BlueNoroff, began with a social engineering lure via Telegram, leading to the installation of malicious software disguised as a Zoom extension. The intrusion involved multiple stages of malware deployment, including persistent implants, backdoors, keyloggers, and cryptocurrency stealers. The attackers utilized advanced techniques such as process injection on macOS and leveraged various tools to collect sensitive information, particularly focusing on cryptocurrency-related data. The analysis covers the initial access vector, technical details of the malware components, and their functionalities, providing insights into the evolving tactics of state-sponsored threat actors targeting macOS systems.
In May 2025, Cisco Talos identified a Python-based remote access trojan (RAT) called 'PylangGhost', used by a North Korean-aligned threat actor. PylangGhost shares similarities with the previously documented GolangGhost RAT. The threat actor, Famous Chollima, has been targeting employees with experience in cryptocurrency and blockchain technologies through fake job interview sites. The attacks primarily affect users in India. The malware is deployed through a two-stage process involving fake skill-testing pages and malicious command execution. PylangGhost consists of six Python modules and offers functionalities similar to its Golang counterpart, including system information collection, file manipulation, and browser data theft from over 80 extensions.
Proofpoint has identified Amatera Stealer, a rebranded version of ACR Stealer with enhanced capabilities and evasion techniques. Distributed via ClearFake website injects, it utilizes sophisticated attack chains and web injects. Amatera Stealer employs NTSockets for stealthy C2 communication, WoW64 Syscalls to bypass user-mode hooking, and supports HTTPS requests. It focuses on stealing information from browsers, crypto wallets, and various software. The malware can also execute secondary payloads. Amatera Stealer is actively developed and sold as a malware-as-a-service, with subscription plans ranging from $199 to $1,499.
The article describes a surge in ClickFix campaigns using GHOSTPULSE to deploy Remote Access Trojans and data-stealing malware. It analyzes a multi-stage attack that begins with ClickFix social engineering, deploys GHOSTPULSE loader, and ultimately delivers ARECHCLIENT2, a potent remote access trojan and infostealer. The campaign exploits user psychology, bypasses traditional defenses, and has seen increased activity in 2025. The analysis covers the infection chain, technical details of GHOSTPULSE and ARECHCLIENT2, and the associated infrastructure. The attack targets a wide range of sensitive user data and system information, including cryptocurrency wallets, browser data, and system details.
A fileless AsyncRAT campaign is targeting German-speaking users through Clickfix-themed websites. The attack uses a fake 'I'm not a robot' prompt to execute malicious PowerShell code, which downloads and runs obfuscated C# code in memory. This technique enables full remote access, credential theft, and data exfiltration without leaving traces on the disk. The malware establishes persistence via registry keys and communicates with a command and control server on port 4444. The campaign has been active since at least April 2025, primarily affecting German-speaking regions. Mitigation strategies include blocking suspicious PowerShell activity, monitoring registry changes, and implementing in-memory scanning for threats.
A malicious Excel file using steganography was analyzed, revealing embedded XLS sheets and a complex infection chain. The file downloads an HTA file that creates a BAT file, which in turn generates and executes a VBS file. The VBS file fetches a VBA script that creates and runs a PowerShell script. The PowerShell script downloads an image containing a hidden payload delimited by specific tags. The payload is a Base64-encoded PE file, which is decoded and executed as a DLL. The final payload appears to be a Katz stealer. This analysis highlights the use of multiple file types and steganography techniques to evade detection.
This comprehensive analysis covers cyber threats targeting financial companies in Korea and globally. It examines malware and phishing cases, top 10 malware strains, and statistics on leaked Korean accounts. The report delves into major financial threats on the dark web, including credit card data breaches, database breaches, and ransomware attacks. A notable case involves the Arkana ransomware group's breach of a global online brokerage firm, In***, resulting in the theft of 50 GB of customer data, including KYC submissions and information of over 163,000 customers. The incident highlights vulnerabilities in trading platforms' identity verification and account protection systems, emphasizing the need for enhanced security measures beyond regulatory compliance.
Anubis is a new ransomware-as-a-service (RaaS) group that combines file encryption with file destruction capabilities. Active since December 2024, it features a 'wipe mode' that permanently erases files, making recovery impossible even if ransom is paid. The group operates a flexible affiliate program, offering negotiable revenue splits and supporting additional monetization paths like data extortion and access sales. Anubis has claimed victims in multiple sectors including healthcare and construction, across regions such as Australia, Canada, Peru, and the U.S. The ransomware uses spear-phishing for initial access, employs command-line execution, privilege escalation, and shadow copy deletion. Its encryption algorithm is similar to EvilByte/Prince ransomware, using Elliptic Curve Integrated Encryption Scheme (ECIES).
Apple confirmed that Messages app flaw was actively exploited in the wild
Source: https://securityaffairs.com/178962/mobile-2/apple-confirmed-messages-app-flaw-actively-exploited.html
Trend Micro fixes critical bugs in Apex Central and TMEE PolicyServer
Source: https://securityaffairs.com/178952/security/trend-micro-fixes-critical-bugs-in-apex-central-and-tmee-policyserver.html
Over 20 Malicious Apps on Google Play Spotted Targeting Users for Seed Phrases
Source: https://hackread.com/malicious-apps-google-play-users-for-seed-phrases/
Hi all, I discovered suspicious behavior and possible malware in a file related to the official MicroDicom Viewer installer. I’ve documented everything including hashes, scan results, and my analysis in this public GitHub repository:
[https://github.com/darnas11/MicroDicom-Incident-Report](https://github.com/darnas11/MicroDicom-Incident-Report)
Feedback and insights are very welcome!
A novel Rust-based infostealer called EDDIESTEALER has been discovered, distributed through fake CAPTCHA campaigns. The malware uses deceptive verification pages to trick users into executing a malicious PowerShell script, which deploys the infostealer. EDDIESTEALER targets sensitive data including credentials, browser information, and cryptocurrency wallet details. It communicates with a command and control server to receive tasks and exfiltrate data. The malware employs string obfuscation, API obfuscation, and other evasion techniques. It specifically targets various crypto wallets, browsers, password managers, FTP clients, and messaging applications. The use of Rust in its development reflects a growing trend among threat actors seeking enhanced stealth and resilience against traditional analysis methods.
