General

  • Target

    https://captcha-recognition-v2.b-cdn.net/verify.html

  • Sample

    241122-y3jw7axrgs

Malware Config

Extracted

Family

lumma

C2

https://candidatersz.cyou/api

Targets

    • Target

      https://captcha-recognition-v2.b-cdn.net/verify.html

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks