General

  • Target
    6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N
  • Size 231KB
  • Sample240917-1tachaxcmp
  • SHA256 6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • umbral

C2
  • https://discord.com/api/webhooks/1283405546807890005/H711uAHISarSH3qsZH2T1W2fX4fmNrhTB3YHn4DzTDrt0_GiXJlts2WXBq2ZAo3ZuwLr

Targets

    • Target
      6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548N
    • Size 231KB
    • SHA256 6e44577b67a2078fb7f6fd18aabdd9e03cc1a5ff3b2549ac4c1172171e9b5548
    • MD5 SHA1 SHA512 SSDEEP
    • 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.

    • Deletes itself

    • 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