北からのジョブオファー: ソフトウェア開発者を狙うContagious Interview
2024-10-29 • Macnica • Job Offers from the North: Contagious Interview Targeting Software Developers •
https://security.macnica.co.jp/blog/2024/10/-contagious-interview.html
Contagious Interview activity linked in the excerpt to DPRK operators continues to target software developers through recruiter lures on LinkedIn and other hiring platforms, with Web3 and DeFi developers especially exposed because cryptocurrency theft is a stated objective. Attackers move victims into technical interviews and ask them to download code or packages from services such as Bitbucket, causing BeaverTail to run and upload host details, browser credentials, macOS keychain data, and cryptocurrency wallet files to C2 servers. Recent delivery formats include npm packages, Qt-based fake video-conferencing installers, and Electron applications, expanding execution across Windows, Linux, and macOS developer environments. BeaverTail then downloads the Python-based InvisibleFerret stage from paths such as http[:]//<C2 IP>:1224/pdown, stores supporting files under user-home directories, and can launch backdoor, browser-stealer, keylogger, clipboard, .env-file discovery, and AnyDesk remote-access components. The excerpt notes that newer BeaverTail samples increased targeted browser-extension wallet types from 9 to 21 and that credentials may already be stolen before later stages are blocked.