General

  • Target

    https://limewire.com/d/3673a2a7-c328-4867-a177-574cc0df06a3#ineLbyoSRITCn0f8WlGUFqyokS-FNO1iMdpZnQgMZ_s

  • Sample

    241227-ytqclsynhw

Malware Config

Targets

    • Target

      https://limewire.com/d/3673a2a7-c328-4867-a177-574cc0df06a3#ineLbyoSRITCn0f8WlGUFqyokS-FNO1iMdpZnQgMZ_s

    • Detect Umbral payload

    • Umbral

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

    • Umbral family

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • Executes dropped EXE

    • 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