Overview

overview

10

Static

static

10

XWormClient.exe

windows10-ltsc_2021-x64

10

XWormClient.exe

windows10-2004-x64

10

XWormClient.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    XWormClient.exe
  • Size 95KB
  • Sample260430-sb6c8aaz4m
  • SHA256 a1d69bc23107f43907d4f7f958973091104c10cf9a6146dfa3b8e2b1fccdb94d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xwormdiscoveryexecutionexploitpersistencerattrojan

Malware Config

Targets

    • Target
      XWormClient.exe
    • Size 95KB
    • SHA256 a1d69bc23107f43907d4f7f958973091104c10cf9a6146dfa3b8e2b1fccdb94d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    xwormrattrojandiscoveryexecutionexploitpersistence

    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Possible privilege escalation attempt

      exploit

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Tasks