General

  • Target

    Nursultan Alpha (prem) (infected).zip

  • Size

    3.5MB

  • Sample

    250306-njqkhsxqs2

  • MD5

    53d811efc8531b13c911b89f2ef87551

  • SHA1

    0a07836e8ea3dda7ac868a22b320c3652bd0e4a1

  • SHA256

    c97add81fe634aac6a0291ebbefc67bc3748966e27cca7fec62e54a54a50abc8

  • SHA512

    63a710b2c9adeec2e66c2fbf39dd4469e2336e293657b7108cf9a4f58abb6cad7a6171cf682b1259e0d92e807bef7876abaf36a2567c2d5dfb807250687cb107

  • SSDEEP

    98304:Eepl3bD1E2SSRWiKhMtAMyTAo6+QYlQw0O8zzZQwO6YT:Ekl3bBE2W338o6p6QdO8zzZy/

Malware Config

Extracted

Family

xworm

C2

192.121.16.228:8324

Attributes
  • Install_directory

    %AppData%

  • install_file

    NurClient.exe

Targets

    • Target

      Nursultan Alpha (prem).exe

    • Size

      3.6MB

    • MD5

      9da7ae2451efded063b29e9763aa244c

    • SHA1

      fb8ca87e4858331ea25485312a5d71ba25704cbc

    • SHA256

      a993be0a000fc4fff5b3806da4d35981551c2ed13655a19985e2f1928f869e07

    • SHA512

      370af95e2ef727f05051738d9f878e9b3954f9a95e2d486afc1000bb2619f9105c1078ecfda78e73cc609e87799c7e67bd19afdd1d1a9ea5b781b896f8825c66

    • SSDEEP

      98304:7u7xU6HERA18WXVP46ir0HKNDKx8/0hYC3srW5cXVR:7u7i6HctF6g0HKND0

    • 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

MITRE ATT&CK Enterprise v15

Tasks