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Overview

overview

10

Static

static

10

XClient.exe

windows10-2004-x64

10

Resubmissions

24/06/2024, 18:41

240624-xb9svszflq 10

Analysis

  • max time kernel
    142s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/06/2024, 18:41

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General

  • Target

    XClient.exe

  • Size

    77KB

  • MD5

    64d362a144056d1d694cd6ac91b05853

  • SHA1

    26ff11d8079cfcbcd030c7b8ff6b468e64fe6646

  • SHA256

    20a5a326453f45148d45dae9a082cb81e94d8d6bf738b690f3108421428aba19

  • SHA512

    e3ca6dd9b7610cf56a538ca49ef39e3ac26586a998d838b75bf0e7e3690745c245327591ff129e8d9036e17fccc163177c6df19815874810b75d3c7e53d1af96

  • SSDEEP

    1536:XwAs1Jl/UONC4QRm4mUHHbPud6Xby/Kbokf38ZeXGWEt2OJoBhQVRDCP:XwAsFcEC4QRjS0by/7kfat2Oi4VJC

Score
10/10
xwormpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

66.66.146.74:9511

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
  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • 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 use of AdjustPrivilegeToken 4 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 use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1620
    • 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:4768
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4012 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4804
    • C:\Users\Admin\AppData\Roaming\XClient.exe
      C:\Users\Admin\AppData\Roaming\XClient.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:368
    • C:\Users\Admin\AppData\Roaming\XClient.exe
      C:\Users\Admin\AppData\Roaming\XClient.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1268

    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

      77KB

      MD5

      64d362a144056d1d694cd6ac91b05853

      SHA1

      26ff11d8079cfcbcd030c7b8ff6b468e64fe6646

      SHA256

      20a5a326453f45148d45dae9a082cb81e94d8d6bf738b690f3108421428aba19

      SHA512

      e3ca6dd9b7610cf56a538ca49ef39e3ac26586a998d838b75bf0e7e3690745c245327591ff129e8d9036e17fccc163177c6df19815874810b75d3c7e53d1af96

      Download Submit

    • memory/368-11-0x00007FF984460000-0x00007FF984F21000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/368-13-0x00007FF984460000-0x00007FF984F21000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1620-0-0x00007FF984463000-0x00007FF984465000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1620-1-0x0000000000AB0000-0x0000000000ACA000-memory.dmp

      Filesize

      104KB

      Download

    • memory/1620-2-0x00007FF984460000-0x00007FF984F21000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1620-7-0x00007FF984463000-0x00007FF984465000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1620-8-0x00007FF984460000-0x00007FF984F21000-memory.dmp

      Filesize

      10.8MB

      Download