This analysis examines a campaign distributing Atomic macOS Stealer (AMOS), targeting macOS users through fake 'cracked' applications. Attackers use two main delivery methods: malicious .dmg installers and terminal commands that bypass Gatekeeper protection. AMOS employs rotating domains to evade detection and steals a wide range of sensitive data, including credentials, browser information, cryptocurrency wallets, and system files. The campaign demonstrates sophisticated tactics, adapting to macOS security improvements and leveraging social engineering. The report emphasizes the importance of comprehensive endpoint detection, user education, and defense-in-depth strategies to combat such threats.
The Contagious Interview campaign is a coordinated cyber espionage operation by North Korean threat actors, notably linked to the Lazarus group, targeting the cryptocurrency sector. These actors actively monitor cyber threat intelligence platforms such as Validin, VirusTotal, and Maltrail to identify exposed infrastructure and new targets. They prioritize rapid deployment of malicious infrastructure over stealth and use social engineering techniques, including the ClickFix method, to trick victims into executing malware. Between January and March 2025, over 230 victims were engaged, demonstrating the campaign's scale and sophistication. Although no known exploits for CVE-2023-42793 have been observed in the wild, the campaign poses a medium severity threat. European cryptocurrency organizations, especially in countries with significant crypto markets and financial sectors, are at risk. Mitigation requires targeted monitoring of threat intelligence platforms, enhanced user training against social engineering, and rapid incident response capabilities.
A novel technique utilizing Ethereum smart contracts was discovered in two npm packages to conceal malicious commands for installing downloader malware. The packages, colortoolsv2 and mimelib2, are part of a larger campaign targeting npm and GitHub. The attackers created sophisticated GitHub repositories with fake popularity metrics to lure developers. The campaign focused on cryptocurrency-related projects, using blockchain technology to evade detection. This incident highlights the evolving strategies of malicious actors in compromising open-source repositories and the need for developers to carefully assess third-party packages before implementation.
This report analyzes three remote access trojans (RATs) used by a Lazarus subgroup targeting financial and cryptocurrency organizations. The RATs, named PondRAT, ThemeForestRAT, and RemotePE, were observed during incident response cases. PondRAT is a simple RAT used as an initial payload, while ThemeForestRAT offers more functionality and operates in-memory. RemotePE is a more advanced RAT deployed in later attack stages. The actor uses social engineering for initial access and employs various tools for network discovery. The report details the RATs' capabilities, command and control mechanisms, and similarities to previously known malware families. It highlights the actor's persistent threat and evolving tactics in targeting high-value financial targets.
Lazarus, an APT group with suspected East Asian origins, has recently employed the ClickFix social engineering technique in their phishing attacks. The group, known for targeting financial institutions and cryptocurrency exchanges, now uses fake job opportunities to lure victims to interview websites. These sites prompt users to 'fix' non-existent camera issues, tricking them into downloading malware disguised as Nvidia software updates. The malware deploys a Node.js environment and executes BeaverTail, a common Lazarus tool. On Windows 11 systems, an additional backdoor (drvUpdate.exe) is installed. The attack also affects macOS users. The malware establishes persistence and connects to command and control servers for further instructions and data exfiltration.
TinkyWinkey is a sophisticated Windows-based keylogger that combines persistent service execution, low-level keyboard hooks, and comprehensive system profiling. It captures all keystrokes, including special keys and multi-language input, alongside detailed system metrics such as CPU, memory, OS version, and network identifiers. The malware uses DLL injection into trusted processes and service-based persistence for stealth. It creates a log file in the user's temp directory, recording system reconnaissance details and user activity data. First observed in June 2025, TinkyWinkey exemplifies the evolving threat landscape, leveraging advanced programming techniques to maintain stealth and maximize data capture. Organizations should monitor for unusual service activity, unexpected DLL injections, and persistent logging patterns to mitigate this threat.
Mosyle has discovered a new Mac malware strain called 'JSCoreRunner' that evades detection by masquerading as a PDF conversion tool. The malware spreads through a malicious website, fileripple.com, and operates in two stages. The first stage, FileRipple.pkg, appears as a legitimate PDF tool while running malicious code in the background. The second stage, Safari14.1.2MojaveAuto.pkg, bypasses Gatekeeper's protections. Once installed, JSCoreRunner targets Chrome browsers, altering search engine settings to redirect users to fraudulent providers. This exposes users to keylogging, phishing, and potential data theft. The malware's sophisticated approach highlights the need for vigilance and proactive security measures for Mac administrators.
MATLAB dev says ransomware gang stole data of 10,000 people
Source: https://www.bleepingcomputer.com/news/security/matlab-dev-says-ransomware-gang-stole-data-of-over-10-000-people/
A sophisticated phishing campaign has been identified, utilizing carefully crafted emails to deliver malicious URLs linked to convincing phishing pages. These pages entice recipients to download JavaScript files that act as droppers for UpCrypter, a malware that ultimately deploys various remote access tools (RATs). The attack chain begins with obfuscated scripts redirecting victims to spoofed sites personalized with the target's email domain. The campaign uses different lures, including voicemail-themed and purchase order-themed emails. UpCrypter, the central loader framework, stages and deploys multiple RATs, including PureHVNC, DCRat, and Babylon RAT. The malware employs anti-VM and anti-analysis techniques, downloads additional payloads, and establishes persistence. This campaign operates globally, affecting multiple industries, and demonstrates an adaptable threat delivery ecosystem capable of bypassing defenses and maintaining persistence across different environments.
I setup a challenge for a new kind of tool there's a private key in plain text in this browser instance. You can copy paste and use it. But you cannot see it or take it. It's basically a mirrored document editor that allows you to control it on any webpage without exposure.
There's a 20$ private bitcoin key directly usable by any user on it. Copy paste and delete it or move it around. If you break the new algorithm it's yours!
Hackers Could Take Over Apple Devices Via Malicious Images – Patch Now!
Source: https://hackread.com/hackers-take-over-apple-devices-malicious-images-patch/
Over 300 entities hit by a variant of Atomic macOS Stealer in recent campaign
Source: https://securityaffairs.com/181441/malware/over-300-entities-hit-by-a-variant-of-atomic-macos-stealer-in-recent-campaign.html
