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Overview

overview

10

Static

static

10

XClient.exe

windows10-ltsc 2021-x64

10

Analysis

  • max time kernel
    887s
  • max time network
    896s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250217-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    01/03/2025, 20:37

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General

  • Target

    XClient.exe

  • Size

    76KB

  • MD5

    b027cd851c4ab83c66c1c8516567e537

  • SHA1

    c0afcc7cca0af22fd7b179d8366c1ab7b4d1804f

  • SHA256

    34eb863221fc8e6894769217eed29c928c98abfff3f7e37901b4fff968f28b7e

  • SHA512

    f84f29779536287b47563e8b6ee4991cb57e00d1a8e435962f34ca1fa04b34826c49c315da5cb93de2b51e2040022d77eb6be2346587f19e9181b7fa8f5b0f91

  • SSDEEP

    1536:z27PB7p+ptvv/PjZ/17YjiQZAAe+boZ8XGPg8dlM4OlEJLRil:z27PB7itvftN7PHAe+boZ5gIfOlGIl

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

192.168.0.122:1234

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 15 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3572
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2020
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4672
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1740
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3076
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3120
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2564
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4308
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3564
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4336
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1364
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:636
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1936
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4292
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3708
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4880
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    "C:\Users\Admin\AppData\Roaming\XClient.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:476

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log
    Filesize

    654B

    MD5

    11c6e74f0561678d2cf7fc075a6cc00c

    SHA1

    535ee79ba978554abcb98c566235805e7ea18490

    SHA256

    d39a78fabca39532fcb85ce908781a75132e1bd01cc50a3b290dd87127837d63

    SHA512

    32c63d67bf512b42e7f57f71287b354200126cb417ef9d869c72e0b9388a7c2f5e3b61f303f1353baa1bf482d0f17e06e23c9f50b2f1babd4d958b6da19c40b0

    Download Submit

  • C:\Users\Admin\AppData\Roaming\XClient.exe
    Filesize

    76KB

    MD5

    b027cd851c4ab83c66c1c8516567e537

    SHA1

    c0afcc7cca0af22fd7b179d8366c1ab7b4d1804f

    SHA256

    34eb863221fc8e6894769217eed29c928c98abfff3f7e37901b4fff968f28b7e

    SHA512

    f84f29779536287b47563e8b6ee4991cb57e00d1a8e435962f34ca1fa04b34826c49c315da5cb93de2b51e2040022d77eb6be2346587f19e9181b7fa8f5b0f91

    Download Submit

  • memory/3572-0-0x00007FFFF28B3000-0x00007FFFF28B5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3572-1-0x00000000003F0000-0x000000000040A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/3572-6-0x00007FFFF28B0000-0x00007FFFF3372000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3572-7-0x00007FFFF28B3000-0x00007FFFF28B5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3572-8-0x00007FFFF28B0000-0x00007FFFF3372000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4672-11-0x00007FFFF28B0000-0x00007FFFF3372000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4672-13-0x00007FFFF28B0000-0x00007FFFF3372000-memory.dmp

    Filesize

    10.8MB

    Download