General

  • Target

    https://gofile.io/d/vbhqRp

  • Sample

    241214-x28y9a1qas

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1311076635377664100/Sd5KeNZASyDMdGMxVc-eozZlY1pWCcLmuuBn9jPZLNBn1hhDwHX0pimlF0gYZfNv2Fir

Targets

    • Target

      https://gofile.io/d/vbhqRp

    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Umbral family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks