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
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 14:00

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General

  • Target

    XClient.exe

  • Size

    173KB

  • MD5

    e53cfc4155bf01620aaf3ef5041116f2

  • SHA1

    50b4d70680945e7e5806de76b47d56d1fc2af985

  • SHA256

    7eb3f17102a94b55b2a95688d799bee21e55ad67c1ff6580c6968852705ace95

  • SHA512

    63babf167c3ebdebf672213d68a441e3973009f52dc34d0f6bec880f8a9712669c223da43f0cd066da0e5495e885f66f5d2a366f918c07bb97b22fe6c8d58232

  • SSDEEP

    3072:xIeFPAg95lvc+b6iTPXGOXx2Bz65/M6If+3Js+3JFkKeTns:xqg7Xbd2xBt25

Score
10/10
xwormevasionexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

advertise-located.gl.at.ply.gg:54921

19.ip.gl.ply.gg:54921
Attributes
  • Install_directory

    %AppData%

  • install_file

    cmd.exe

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detect Xworm Payload 4 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

    execution
  • Disables Task Manager via registry modification
    evasion
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 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⤵
    • Drops startup file
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2884
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2480
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\cmd.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2860
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'cmd.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2416
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "cmd" /tr "C:\Users\Admin\AppData\Roaming\cmd.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1708
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {C157E03F-92BB-45C9-AAAF-3072CF941535} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Roaming\cmd.exe
      C:\Users\Admin\AppData\Roaming\cmd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1448
    • C:\Users\Admin\AppData\Roaming\cmd.exe
      C:\Users\Admin\AppData\Roaming\cmd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2932
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe"
    1⤵
      PID:452
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
      1⤵
        PID:2548

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
        Filesize

        7KB

        MD5

        001ebf95ed70d913b7d76c4e6970bfe7

        SHA1

        a09f730ef4fb69342c2d362d605d437ca28a9d9c

        SHA256

        1eb0c8c847926b9631ca57b7dbaf64819ae313147073c7472258fca9456fa15d

        SHA512

        0a76e420f0f2c994f4570d3ecff822713329c7a4e9bdf27f897e6db0807ee0d583a697459f5afac7058e3d99158e750e5a349f9d83618f782390fbbddeab569a

        Download Submit
      • C:\Users\Admin\AppData\Roaming\cmd.exe
        Filesize

        173KB

        MD5

        e53cfc4155bf01620aaf3ef5041116f2

        SHA1

        50b4d70680945e7e5806de76b47d56d1fc2af985

        SHA256

        7eb3f17102a94b55b2a95688d799bee21e55ad67c1ff6580c6968852705ace95

        SHA512

        63babf167c3ebdebf672213d68a441e3973009f52dc34d0f6bec880f8a9712669c223da43f0cd066da0e5495e885f66f5d2a366f918c07bb97b22fe6c8d58232

        Download Submit
      • \??\PIPE\srvsvc
        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

        Download Submit
      • \Users\Admin\AppData\Local\Temp\tmpCBA8.tmp
        Filesize

        100KB

        MD5

        1b942faa8e8b1008a8c3c1004ba57349

        SHA1

        cd99977f6c1819b12b33240b784ca816dfe2cb91

        SHA256

        555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc

        SHA512

        5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43

        Download Submit
      • memory/1448-38-0x0000000000A00000-0x0000000000A32000-memory.dmp
        Filesize

        200KB

        Download
      • memory/1984-34-0x0000000001F00000-0x0000000001F36000-memory.dmp
        Filesize

        216KB

        Download
      • memory/1984-0-0x000007FEF57D3000-0x000007FEF57D4000-memory.dmp
        Filesize

        4KB

        Download
      • memory/1984-44-0x0000000000AB0000-0x0000000000ABE000-memory.dmp
        Filesize

        56KB

        Download
      • memory/1984-1-0x0000000000AC0000-0x0000000000AF2000-memory.dmp
        Filesize

        200KB

        Download
      • memory/1984-31-0x0000000002220000-0x00000000022A0000-memory.dmp
        Filesize

        512KB

        Download
      • memory/1984-32-0x000007FEF57D3000-0x000007FEF57D4000-memory.dmp
        Filesize

        4KB

        Download
      • memory/1984-33-0x0000000002220000-0x00000000022A0000-memory.dmp
        Filesize

        512KB

        Download
      • memory/1984-39-0x0000000002040000-0x000000000207A000-memory.dmp
        Filesize

        232KB

        Download
      • memory/2480-15-0x0000000001F80000-0x0000000001F88000-memory.dmp
        Filesize

        32KB

        Download
      • memory/2480-14-0x000000001B6B0000-0x000000001B992000-memory.dmp
        Filesize

        2.9MB

        Download
      • memory/2884-7-0x000000001B6F0000-0x000000001B9D2000-memory.dmp
        Filesize

        2.9MB

        Download
      • memory/2884-6-0x0000000002C10000-0x0000000002C90000-memory.dmp
        Filesize

        512KB

        Download
      • memory/2884-8-0x0000000002690000-0x0000000002698000-memory.dmp
        Filesize

        32KB

        Download
      • memory/2932-76-0x0000000000300000-0x0000000000332000-memory.dmp
        Filesize

        200KB

        Download