General

  • Target

    Winrar Code Craker.exe

  • Size

    4.0MB

  • Sample

    250121-qbm6javqel

  • MD5

    0f34e7a485d0884daae6dec91541b742

  • SHA1

    e366c430f4cf375dd96ca92edfe06ff165869e46

  • SHA256

    0cc35e594ffd17ad9d51f824445dc7e391a74535e575c9d638b0402cf49e612c

  • SHA512

    8e966e4a13beb16713a22bfd467f3fc18a81d47cbdf421ba113c5ec5b86a12011a50a82adf6b4e9bc6e37f6e8ca468420eaf30d62cab749a221e1f0b9a4018ec

  • SSDEEP

    98304:YkhH66TO4Za+CtcszUqoLmO/AWyeT7DJgBSEpxEydq2EdtIONLG:c6QcBdCRWyen1zE7Ey8JdyONG

Malware Config

Extracted

Family

xworm

C2

jynx.uncofig.com:1111

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Targets

    • Target

      Winrar Code Craker.exe

    • Size

      4.0MB

    • MD5

      0f34e7a485d0884daae6dec91541b742

    • SHA1

      e366c430f4cf375dd96ca92edfe06ff165869e46

    • SHA256

      0cc35e594ffd17ad9d51f824445dc7e391a74535e575c9d638b0402cf49e612c

    • SHA512

      8e966e4a13beb16713a22bfd467f3fc18a81d47cbdf421ba113c5ec5b86a12011a50a82adf6b4e9bc6e37f6e8ca468420eaf30d62cab749a221e1f0b9a4018ec

    • SSDEEP

      98304:YkhH66TO4Za+CtcszUqoLmO/AWyeT7DJgBSEpxEydq2EdtIONLG:c6QcBdCRWyen1zE7Ey8JdyONG

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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