General

  • Target

    https://mega.nz/file/uFoDARAA#jtvMkvKLduwPj2y_juqUnaG5_YLFwBx1HZUP90o_4c0

  • Sample

    240814-d992qs1clr

Malware Config

Targets

    • Target

      https://mega.nz/file/uFoDARAA#jtvMkvKLduwPj2y_juqUnaG5_YLFwBx1HZUP90o_4c0

    • Detect Umbral payload

    • Umbral

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • 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