General

  • Target

    https://bitbucket.org/xyzcrypter/lmfu/downloads/New_Document-3765618.iso

  • Sample

    240830-rv7jyszfln

Malware Config

Extracted

Family

xworm

Version

5.0

C2

yolomesho.work.gd:7000

Mutex

oUFURe5xwVr67Kd5

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7023733342:AAF7anpSpW-b4P0f9IHAtSRpneaxwA7w_Lc/sendMessag

Targets

    • Target

      https://bitbucket.org/xyzcrypter/lmfu/downloads/New_Document-3765618.iso

    • Detect Xworm Payload

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Download via BitsAdmin

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks