General

  • Target

    SecurityHealthSystray.exe

  • Size

    377KB

  • Sample

    250125-1yeg1stkep

  • MD5

    6551f7063b52d4ecac238087e67068ff

  • SHA1

    93bc3ad6922956dde60b80034c63d4af31777e3f

  • SHA256

    10fbf7403dfff9e5e7deba321401d4c0954595df1683a75b698dff9e36d6162c

  • SHA512

    ab7bc460eeae4418f9979a72447a639130650ae8e06af89e3561cf931985373e3f940c5b695828f4b725daf7ae211861c0c7e078119dc349c8010725138ef0b6

  • SSDEEP

    6144:IjN1wBG/3chyBctnXM8Dx3PRd7GIiiW0lxJ:IHzgyBctnXMMtGIi+

Malware Config

Extracted

Family

xworm

C2

szqdzaa-22376.portmap.host:22376

Attributes
  • Install_directory

    %AppData%

  • install_file

    SecurityHealthSystray.exe

  • telegram

    https://api.telegram.org/bot6452802278:AAF2PAliVpXJNIcPNYSggwPXTiOwgl_RL_k/sendMessage?chat_id=5355197127

Targets

    • Target

      SecurityHealthSystray.exe

    • Size

      377KB

    • MD5

      6551f7063b52d4ecac238087e67068ff

    • SHA1

      93bc3ad6922956dde60b80034c63d4af31777e3f

    • SHA256

      10fbf7403dfff9e5e7deba321401d4c0954595df1683a75b698dff9e36d6162c

    • SHA512

      ab7bc460eeae4418f9979a72447a639130650ae8e06af89e3561cf931985373e3f940c5b695828f4b725daf7ae211861c0c7e078119dc349c8010725138ef0b6

    • SSDEEP

      6144:IjN1wBG/3chyBctnXM8Dx3PRd7GIiiW0lxJ:IHzgyBctnXMMtGIi+

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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.

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks