General

  • Target

    2024-06-21_6e9a2ac438be69ee9b31ac9d10217209_hiddentear

  • Size

    175KB

  • Sample

    240621-jr5l7asaqg

  • MD5

    6e9a2ac438be69ee9b31ac9d10217209

  • SHA1

    1b7df45669754fdd59dbcf57be8150c784d48982

  • SHA256

    1275f4387cfdc226a89156dab68429eaf3bc8dc0d7236c747468bd2fc2c45503

  • SHA512

    8f32d3c77684aba67f461fcce5deac7e96578e2cae10f3e0e6d08197e0674a1580837539e0c22744f6682dc59df2b0e15894101fb0c96ce5b4bda27c06d39154

  • SSDEEP

    3072:SN/1KqKrbXDRkx8OIMHqM+lmsolAIrRuw+mqv9j1MWLQ+:UKLrbt+tJ+lDAA

Malware Config

Extracted

Family

xworm

C2

Mukhbit-38162.portmap.host:38162

Attributes
  • Install_directory

    %AppData%

  • install_file

    system.exe

Targets

    • Target

      2024-06-21_6e9a2ac438be69ee9b31ac9d10217209_hiddentear

    • Size

      175KB

    • MD5

      6e9a2ac438be69ee9b31ac9d10217209

    • SHA1

      1b7df45669754fdd59dbcf57be8150c784d48982

    • SHA256

      1275f4387cfdc226a89156dab68429eaf3bc8dc0d7236c747468bd2fc2c45503

    • SHA512

      8f32d3c77684aba67f461fcce5deac7e96578e2cae10f3e0e6d08197e0674a1580837539e0c22744f6682dc59df2b0e15894101fb0c96ce5b4bda27c06d39154

    • SSDEEP

      3072:SN/1KqKrbXDRkx8OIMHqM+lmsolAIrRuw+mqv9j1MWLQ+:UKLrbt+tJ+lDAA

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Detects Windows executables referencing non-Windows User-Agents

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • 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