CoffeeLoader

Zscaler ThreatLabz states that this sophisticated malware family likely originated around September 2024. The purpose of the malware is to download and execute second-stage payloads while evading detection by endpoint-based security products. The malware uses numerous techniques to bypass security solutions, including a specialized packer called Armoury that utilizes the GPU, call stack spoofing, sleep obfuscation, and the use of Windows fibers. It also contains a backup DGA and is capable of deploying Rhadamanthys shellcode. ThreatLabz has observed CoffeeLoader being distributed via SmokeLoader, and both malware families share some behavioral similarities.

Family metadata imported from Malpedia (Fraunhofer FKIE).