General

  • Target

    caf.exe

  • Size

    72KB

  • Sample

    240527-g2bqrabe89

  • MD5

    791135ea6c451485f0ce1f2c84eb5604

  • SHA1

    79825fba4b0835a362eb74b674870ddc6c898bac

  • SHA256

    8150de8ca7edf3ba414fb09d1387c0751189969e5f9f69090593dc31d7d76c00

  • SHA512

    f61cc6bb003013fb126cab60b9339027078fa55080ed085d8aadb980a3f0f12e0621bb64e79bd5126891fe3f66766932be0cbc4ebcefe58057ba78e3b3ce9bc6

  • SSDEEP

    1536:x/cNtbrIcVPCv4KKV0YbO3F8d306kyNCernOsPj8WVnon:FcbbE7v4KVYbOg9N9nOiIxn

Malware Config

Extracted

Family

xworm

C2

sent-down.gl.at.ply.gg:2905

Attributes
  • Install_directory

    %AppData%

  • install_file

    sys.exe

Targets

    • Target

      caf.exe

    • Size

      72KB

    • MD5

      791135ea6c451485f0ce1f2c84eb5604

    • SHA1

      79825fba4b0835a362eb74b674870ddc6c898bac

    • SHA256

      8150de8ca7edf3ba414fb09d1387c0751189969e5f9f69090593dc31d7d76c00

    • SHA512

      f61cc6bb003013fb126cab60b9339027078fa55080ed085d8aadb980a3f0f12e0621bb64e79bd5126891fe3f66766932be0cbc4ebcefe58057ba78e3b3ce9bc6

    • SSDEEP

      1536:x/cNtbrIcVPCv4KKV0YbO3F8d306kyNCernOsPj8WVnon:FcbbE7v4KVYbOg9N9nOiIxn

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • 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