General

  • Target

    XClient.exe

  • Size

    52KB

  • Sample

    250406-mljdjsypx5

  • MD5

    704cf322a2352b2909af319b8fb321e2

  • SHA1

    cede363819b46de6666af392e516818392fcbea1

  • SHA256

    8b3da7096981bfd3da39e2183a05fe7ceb20ec97a955c7844252c4e4432ffe7a

  • SHA512

    3ce9d3438fb7bf2a1e68cbf74bc654a384a9883a557e717cfd7565d91542bf5c7e8708c84b91c9aafc2ceec5bfca5f5ea2689581e22aa1c701bde9cd4029aa81

  • SSDEEP

    1536:89UEPX1t0fbiJGVisUkbxZwF1PS96AdOCE08R:aUWQi4VfUkbxq2OZ08R

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %Public%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/kG1CGVaU

Targets

    • Target

      XClient.exe

    • Size

      52KB

    • MD5

      704cf322a2352b2909af319b8fb321e2

    • SHA1

      cede363819b46de6666af392e516818392fcbea1

    • SHA256

      8b3da7096981bfd3da39e2183a05fe7ceb20ec97a955c7844252c4e4432ffe7a

    • SHA512

      3ce9d3438fb7bf2a1e68cbf74bc654a384a9883a557e717cfd7565d91542bf5c7e8708c84b91c9aafc2ceec5bfca5f5ea2689581e22aa1c701bde9cd4029aa81

    • SSDEEP

      1536:89UEPX1t0fbiJGVisUkbxZwF1PS96AdOCE08R:aUWQi4VfUkbxq2OZ08R

    • 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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks