General

  • Target

    https://disk.yandex.ru/d/jwqtAWcXaasUZg

  • Sample

    240509-l619escd3t

Malware Config

Extracted

Family

umbral

C2

https://discordapp.com/api/webhooks/1200901244135424020/I4v5pzJX0UjVd0FwK3ixFuD8uLYkkqVZ88yww4W1VnZTtqyRvVWACe1Ju91ncRYErY68

Targets

    • Target

      https://disk.yandex.ru/d/jwqtAWcXaasUZg

    • Detect Umbral payload

    • Umbral

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

    • 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.

    • 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