Overview

overview

10

Static

static

10

XClient.exe

windows10-2004-x64

10

XClient.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    899s
  • max time network
    895s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/09/2026, 14:59

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General

  • Target
    XClient.exe
  • Size 30KB
  • Sample260916-scqddsbd65
  • SHA256 d649d77a6f650c4dc010ca829870993142900d603e7519c0c0910544f2e422e6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
bootkitexecutionxwormpersistenceprivilege_escalationransomwarerattrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 3.0

C2

  • 31.6.50.206:2017

Mutex

  • KK8iCD3DPVJsmmBf

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Detect Xworm Payload 1 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation
  • Executes dropped EXE 2 IoCs
  • Modifies system executable filetype association 2 TTPs 47 IoCs
    persistence
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Users\Commandos.exe
      "C:\Users\Commandos.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4016
      • C:\Users\Admin\AppData\Local\Temp\.exe
        "C:\Users\Admin\AppData\Local\Temp\.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:688
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /k reg delete HKCR /f
          4⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:3192
          • C:\Windows\system32\reg.exe
            reg delete HKCR /f
            5⤵
            • Modifies system executable filetype association
            • Modifies registry class
            PID:1244

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        .exe
        • Path C:\Users\Admin\AppData\Local\Temp\.exe
        • Size 14KB
        • SHA256 070bb826b94e3660f53f35099c60f02326214a67afa68cd0c65bfee50dd1f8a2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Commandos.exe
        • Path C:\Users\Commandos.exe
        • Size 79KB
        • SHA256 e0c0bb0b89ded0bcad1a4fbd9d7d989cacffe9c2dd963a89e86e13582cdf8262
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/688-31-0x0000000000FE0000-0x0000000000FEA000-memory.dmp
        Download

        memory/4016-32-0x000000001B380000-0x000000001B390000-memory.dmp
        Download

        memory/4016-18-0x0000000000770000-0x0000000000788000-memory.dmp
        Download

        memory/4016-19-0x000000001B380000-0x000000001B390000-memory.dmp
        Download

        memory/4524-3-0x000000001CC00000-0x000000001D128000-memory.dmp
        Download

        memory/4524-6-0x00000000009D0000-0x00000000009DE000-memory.dmp
        Download

        memory/4524-5-0x000000001B030000-0x000000001B03A000-memory.dmp
        Download

        memory/4524-4-0x0000000002550000-0x0000000002560000-memory.dmp
        Download

        memory/4524-0-0x00000000003B0000-0x00000000003BE000-memory.dmp
        Download

        memory/4524-2-0x000000001B020000-0x000000001B02C000-memory.dmp
        Download

        memory/4524-1-0x0000000002550000-0x0000000002560000-memory.dmp
        Download