General

  • Target

    rat.exe

  • Size

    41KB

  • Sample

    241120-t57c2syhjf

  • MD5

    4f1165749ca148c4e5e1cc9668b77362

  • SHA1

    59bc26664dc28a62583406c4a76ecc63e5868dc8

  • SHA256

    3f72d384eb716a3fb5da70541e033e0dca76f2479d8c64c0087c8c9dc3c6148b

  • SHA512

    610f4939228790155716ec3574838a6dd49a339dd669667fcd4a2dd552f3558c82ac3f51507b91ba7d26717007095114cfc5b313d6db93a6b10fe905869b7c5a

  • SSDEEP

    768:8yIOKKVKWC6uzXvgggCLJF5PG9pmeX6vOwhT3Emzy:8zbKVKWLcXvvgcFI9AeX6vOwt9O

Malware Config

Extracted

Family

xworm

Version

5.0

C2

tcp://ikonik2681-35277.portmap.host:35277

Mutex

E9ghqILQRlbkHiLe

Attributes
  • Install_directory

    %AppData%

  • install_file

    $77MicrosoftDefender.exe

aes.plain

Targets

    • Target

      rat.exe

    • Size

      41KB

    • MD5

      4f1165749ca148c4e5e1cc9668b77362

    • SHA1

      59bc26664dc28a62583406c4a76ecc63e5868dc8

    • SHA256

      3f72d384eb716a3fb5da70541e033e0dca76f2479d8c64c0087c8c9dc3c6148b

    • SHA512

      610f4939228790155716ec3574838a6dd49a339dd669667fcd4a2dd552f3558c82ac3f51507b91ba7d26717007095114cfc5b313d6db93a6b10fe905869b7c5a

    • SSDEEP

      768:8yIOKKVKWC6uzXvgggCLJF5PG9pmeX6vOwhT3Emzy:8zbKVKWLcXvvgcFI9AeX6vOwt9O

    • 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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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