Overview

overview

10

Static

static

10

XClient.exe

windows7-x64

10

XClient.exe

windows10-2004-x64

Analysis

  • max time kernel
    78s
  • max time network
    84s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/05/2024, 12:28

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Errors

Reason
Machine shutdown

General

  • Target
    XClient.exe
  • Size 105KB
  • Sample240529-pntcmsec6t
  • SHA256 2a0185a92e1b51ba3d9e6211ea72dfd2ea30652f8516c45a194191f113da97d8
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

C2

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

  • 19.ip.gl.ply.gg:54921

  • XWorm V5.2:123

Attributes
  • Install_directory

    %AppData%

  • install_file

    Delta.exe

Signatures

  • Detect Xworm Payload 2 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
  • 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 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).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • 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 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 55 IoCs
  • Suspicious use of SendNotifyMessage 55 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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:1064
    • 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:4796
    • 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:4108
    • 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\Delta.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2452
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Delta.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:432
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Delta" /tr "C:\Users\Admin\AppData\Roaming\Delta.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1872
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:640
  • C:\Users\Admin\AppData\Roaming\Delta.exe
    C:\Users\Admin\AppData\Roaming\Delta.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4508

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        powershell.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68
        • MD5 SHA1 SHA512
        Submit Download

        __PSScriptPolicyTest_n2yhyinm.bvm.ps1
        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n2yhyinm.bvm.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512
        Submit Download

        Delta.exe
        • Path C:\Users\Admin\AppData\Roaming\Delta.exe
        • Size 105KB
        • SHA256 2a0185a92e1b51ba3d9e6211ea72dfd2ea30652f8516c45a194191f113da97d8
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        Delta.lnk
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Delta.lnk
        • Size 759B
        • SHA256 36786d1c8531874015d227025eedb7f8f9c2a7933af2d45d645b0836c2b67d3a
        • MD5 SHA1 SHA512
        Submit Download

        memory/640-65-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-68-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-67-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-66-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-61-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-69-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-70-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-71-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-59-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/640-60-0x0000025DC2EF0000-0x0000025DC2EF1000-memory.dmp
        Download

        memory/1064-57-0x00007FFF543D3000-0x00007FFF543D5000-memory.dmp
        Download

        memory/1064-58-0x00007FFF543D0000-0x00007FFF54E91000-memory.dmp
        Download

        memory/1064-0-0x00000000003B0000-0x00000000003D0000-memory.dmp
        Download

        memory/1064-56-0x00007FFF543D0000-0x00007FFF54E91000-memory.dmp
        Download

        memory/1064-1-0x00007FFF543D3000-0x00007FFF543D5000-memory.dmp
        Download

        memory/4796-17-0x00007FFF543D0000-0x00007FFF54E91000-memory.dmp
        Download

        memory/4796-14-0x00007FFF543D0000-0x00007FFF54E91000-memory.dmp
        Download

        memory/4796-13-0x00007FFF543D0000-0x00007FFF54E91000-memory.dmp
        Download

        memory/4796-12-0x00007FFF543D0000-0x00007FFF54E91000-memory.dmp
        Download

        memory/4796-2-0x000001CF785E0000-0x000001CF78602000-memory.dmp
        Download