General

  • Target

    XClient.exe

  • Size

    41KB

  • Sample

    241120-vbcf9azkgw

  • MD5

    486527e2986049735316f190c8571c72

  • SHA1

    9ce5e9ae89d3b91c834ac66d5ab947687b867c19

  • SHA256

    c150b18ea2bd00902f2b8de9b0439ef6bd2a448b3255ac4619bab7de57407ea3

  • SHA512

    01ed720a7100238bb51e1fa6ebe88e62a3fa6c3060c472891c38b0cfc17e29d4f11899a0dd12d3460473f751af299a5e5c87e97a2a75b0c7e911b5797f13c745

  • SSDEEP

    768:bG2ZOWZ42nxuT3XvgggCLJF5PG9pmWJ6vOwhX3Emz9:bG2bZ42n07XvvgcFI9AWJ6vOwV9Z

Malware Config

Extracted

Family

xworm

Version

5.0

C2

ikonik2681-35277.portmap.host:35277

Mutex

NwRz6E7beRbMfRwa

Attributes
  • Install_directory

    %AppData%

  • install_file

    $77MicrosoftDefender.exe

aes.plain

Targets

    • Target

      XClient.exe

    • Size

      41KB

    • MD5

      486527e2986049735316f190c8571c72

    • SHA1

      9ce5e9ae89d3b91c834ac66d5ab947687b867c19

    • SHA256

      c150b18ea2bd00902f2b8de9b0439ef6bd2a448b3255ac4619bab7de57407ea3

    • SHA512

      01ed720a7100238bb51e1fa6ebe88e62a3fa6c3060c472891c38b0cfc17e29d4f11899a0dd12d3460473f751af299a5e5c87e97a2a75b0c7e911b5797f13c745

    • SSDEEP

      768:bG2ZOWZ42nxuT3XvgggCLJF5PG9pmWJ6vOwhX3Emz9:bG2bZ42n07XvvgcFI9AWJ6vOwV9Z

    • 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

    • 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