Cthulhu Team
Cthulhu Team is the operator name associated with Cthulhu Stealer, a macOS-focused infostealer sold as malware-as-a-service (MaaS) via Telegram. The group is referred to in the source as the "Cthulhu Team." Their malware, Cthulhu Stealer, is written in Go and is propagated via malicious application installers, including a malicious installer masquerading as CleanMyMac. The malware uses fake dialog boxes to socially engineer victims into entering a system password and then a MetaMask password. Reported targeting includes data from Google Chrome, Microsoft Edge, and Firefox; multiple cryptocurrency wallets; FileZilla configuration files; Telegram data; macOS Notes files; Keychain/SafeStorage passwords; files with extensions such as .png, .jpg, .jpeg, .icns, .doc, .xls, .xlsx, .rtf, and .pdf; and data related to Battle.net and Minecraft. Stolen data is saved under /Users/Shared/NW and uploaded to a command-and-control server.
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