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Overview

overview

10

Static

static

10

XClient.exe

windows7-x64

10

XClient.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/03/2025, 20:53

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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 3 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 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:1484
    • 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:2452
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1476
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3104
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

    Download Submit

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

    76KB

    MD5

    b027cd851c4ab83c66c1c8516567e537

    SHA1

    c0afcc7cca0af22fd7b179d8366c1ab7b4d1804f

    SHA256

    34eb863221fc8e6894769217eed29c928c98abfff3f7e37901b4fff968f28b7e

    SHA512

    f84f29779536287b47563e8b6ee4991cb57e00d1a8e435962f34ca1fa04b34826c49c315da5cb93de2b51e2040022d77eb6be2346587f19e9181b7fa8f5b0f91

    Download Submit

  • memory/1476-10-0x00007FFFB0C90000-0x00007FFFB1751000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1476-12-0x00007FFFB0C90000-0x00007FFFB1751000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1484-0-0x00007FFFB0C93000-0x00007FFFB0C95000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1484-1-0x0000000000570000-0x000000000058A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/1484-6-0x00007FFFB0C90000-0x00007FFFB1751000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1484-9-0x00007FFFB0C93000-0x00007FFFB0C95000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1484-13-0x00007FFFB0C90000-0x00007FFFB1751000-memory.dmp

    Filesize

    10.8MB

    Download