General

  • Target

    bXClient.exe

  • Size

    42KB

  • Sample

    250120-x4d7navkgl

  • MD5

    1197a13638ec84ea69c38d0a789a66a2

  • SHA1

    fc65c04ec53a09606c15055a7edc4a083190a418

  • SHA256

    12983048e2e21778b6db353a833f6ecd6a9745c2818d0968f9c882b1806681c1

  • SHA512

    12f62b6cea4f6346129d6c589d557d1481e43e749ebbd5d264ac925140da4b277560d4d75453a58847ad651562b5b230cd0650e968461a0f360054ec58b89fe5

  • SSDEEP

    768:g/CsBpA2DYSPd6ls3AyZrl2F59g8qZOCh60R8lE9:g/C2d40wF59g8qZOCU1E9

Malware Config

Extracted

Family

xworm

Version

5.0

C2

https://pastebin.com/raw/0Pj9kgRk:1

Mutex

ZywUmpapVFNqLmrC

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    msconfig.exe

  • pastebin_url

    https://pastebin.com/raw/0Pj9kgRk

aes.plain

Targets

    • Target

      bXClient.exe

    • Size

      42KB

    • MD5

      1197a13638ec84ea69c38d0a789a66a2

    • SHA1

      fc65c04ec53a09606c15055a7edc4a083190a418

    • SHA256

      12983048e2e21778b6db353a833f6ecd6a9745c2818d0968f9c882b1806681c1

    • SHA512

      12f62b6cea4f6346129d6c589d557d1481e43e749ebbd5d264ac925140da4b277560d4d75453a58847ad651562b5b230cd0650e968461a0f360054ec58b89fe5

    • SSDEEP

      768:g/CsBpA2DYSPd6ls3AyZrl2F59g8qZOCh60R8lE9:g/C2d40wF59g8qZOCU1E9

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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