Analysis

  • max time kernel
    148s
  • max time network
    133s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 09:24

General

  • Target
    2026-10-23_99e9e46585fd04d927bdac4c3461fefa_.exe
  • Size 1.0MB
  • Sample261023-ldevqaay6t
  • SHA256 2d79520c9b353c75eaba40f30c2e904bb4c8fb3f9f58991c6087188784bf563e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deobfuscate/Decode Files or Information 1 TTPs 4 IoCs

    Payload decoded via CertUtil.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 16 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.

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 23 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • Views/modifies file attributes 1 TTPs 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-23_99e9e46585fd04d927bdac4c3461fefa_.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-23_99e9e46585fd04d927bdac4c3461fefa_.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\KFICND.dll" (DEL /F/Q "%appdata%\Microsoft\Protect\KFICND.dll") >nul
      2⤵
      • Executes a command shell one-liner
      PID:4580
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\KFICND.bat" (DEL /F/Q "%appdata%\Microsoft\Protect\KFICND.bat") >nul
      2⤵
      • Executes a command shell one-liner
      PID:3632
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c certutil -decode "%appdata%\Microsoft\Protect\KFICND.dll" "%appdata%\Microsoft\Protect\KFICND.bat" >nul
      2⤵
      • Deobfuscate/Decode Files or Information
      • Suspicious use of WriteProcessMemory
      PID:3124
      • C:\Windows\system32\certutil.exe
        certutil -decode "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\KFICND.dll" "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\KFICND.bat"
        3⤵
        • Deobfuscate/Decode Files or Information
        PID:3244
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c call "%appdata%\Microsoft\Protect\KFICND.bat"
      2⤵
      • Executes a command shell one-liner
      PID:2448
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\KFICND.dll" (DEL /F/Q "%appdata%\Microsoft\Protect\KFICND.dll") >nul
      2⤵
      • Executes a command shell one-liner
      PID:4700
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\KFICND.bat" (DEL /F/Q "%appdata%\Microsoft\Protect\KFICND.bat") >nul
      2⤵
      • Executes a command shell one-liner
      PID:3608
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c Attrib -S -H ""%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll"" >nul
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Windows\system32\attrib.exe
        Attrib -S -H ""C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.dll""
        3⤵
        • Views/modifies file attributes
        PID:2948
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c Attrib -S -H ""%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat"" >nul
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3252
      • C:\Windows\system32\attrib.exe
        Attrib -S -H ""C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.bat""
        3⤵
        • Views/modifies file attributes
        PID:5480
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll" (DEL /F/Q "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll") >nul
      2⤵
      • Executes a command shell one-liner
      PID:5880
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat" (DEL /F/Q "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat") >nul
      2⤵
      • Executes a command shell one-liner
      PID:1448
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c certutil -decode "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll" "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat" >nul
      2⤵
      • Deobfuscate/Decode Files or Information
      • Suspicious use of WriteProcessMemory
      PID:5852
      • C:\Windows\system32\certutil.exe
        certutil -decode "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.dll" "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.bat"
        3⤵
        • Deobfuscate/Decode Files or Information
        PID:3268
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c Attrib +S +H ""%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat"" >nul
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2800
      • C:\Windows\system32\attrib.exe
        Attrib +S +H ""C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.bat""
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:5872
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c Attrib +S +H ""%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll"" >nul
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\system32\attrib.exe
        Attrib +S +H ""C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.dll""
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:4112
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c call "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5744
      • C:\Windows\system32\mode.com
        mode con:cols=80 lines=20
        3⤵
          PID:5200
        • C:\Windows\system32\timeout.exe
          timeout 5
          3⤵
          • Delays execution with timeout.exe
          PID:1892
        • C:\Windows\system32\taskkill.exe
          TASKKILL /IM OUTLOOK.exe /F
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2080
        • C:\Windows\system32\PING.EXE
          ping 8.8.8.8 -n 2 -w 1000
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2436
        • C:\Windows\system32\xcopy.exe
          xcopy /i /d /y *.pst "C:\RESPALDO CORREO"
          3⤵
            PID:252
          • C:\Windows\system32\xcopy.exe
            xcopy /i /d /y *.ost "C:\RESPALDO CORREO"
            3⤵
              PID:3604
            • C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE
              "C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE"
              3⤵
              • Checks processor information in registry
              • Enumerates system info in registry
              • Modifies Internet Explorer settings
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of SetWindowsHookEx
              PID:4972
            • C:\Windows\system32\timeout.exe
              timeout 10
              3⤵
              • Delays execution with timeout.exe
              PID:2404
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c Attrib -S -H ""%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll"" >nul
            2⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:480
            • C:\Windows\system32\attrib.exe
              Attrib -S -H ""C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.dll""
              3⤵
              • Views/modifies file attributes
              PID:6044
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c Attrib -S -H ""%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat"" >nul
            2⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:5372
            • C:\Windows\system32\attrib.exe
              Attrib -S -H ""C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\\Script mejorado Correo.bat""
              3⤵
              • Views/modifies file attributes
              PID:2832
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll" (DEL /F/Q "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.dll") >nul
            2⤵
            • Executes a command shell one-liner
            PID:2920
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c if exist "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat" (DEL /F/Q "%appdata%\Microsoft\Protect\nul\\Script mejorado Correo.bat") >nul
            2⤵
            • Executes a command shell one-liner
            PID:1992

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              KFICND.bat

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\KFICND.bat
              • Size 174B
              • SHA256 62000a9ca00d44d4602306c795081f6ccf2c15724911874b51d16949c6759614
              • MD5 SHA1 SHA512 TLSH

              KFICND.dll

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\KFICND.dll
              • Size 296B
              • SHA256 f98f27dd854a8806013c88248b51fe66efbf19112cde22dac3c21ac820e6bac9
              • MD5 SHA1 SHA512 TLSH

              Script mejorado Correo.bat

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\Script mejorado Correo.bat
              • Size 2KB
              • SHA256 509bf356d85fb2e2d13f405f3708d91ff3d660ebfdc6773641e76563f7e3ad6f
              • MD5 SHA1 SHA512 TLSH

              Script mejorado Correo.dll

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\nul\Script mejorado Correo.dll
              • Size 3KB
              • SHA256 3040d7ae220c239f0780bb078dc35b1fd5af9e6f1a07a4e64e2d8c32362d53ff
              • MD5 SHA1 SHA512 TLSH

              memory/4876-64-0x0000000000400000-0x0000000000513000-memory.dmp

              memory/4876-63-0x0000000000400000-0x0000000000513000-memory.dmp

              memory/4972-29-0x00007FFF69BA0000-0x00007FFF69BB0000-memory.dmp

              memory/4972-32-0x00007FFF69BA0000-0x00007FFF69BB0000-memory.dmp

              memory/4972-31-0x00007FFF69BA0000-0x00007FFF69BB0000-memory.dmp

              memory/4972-33-0x00007FFF678B0000-0x00007FFF678C0000-memory.dmp

              memory/4972-34-0x00007FFF678B0000-0x00007FFF678C0000-memory.dmp

              memory/4972-30-0x00007FFF69BA0000-0x00007FFF69BB0000-memory.dmp

              memory/4972-28-0x00007FFF69BA0000-0x00007FFF69BB0000-memory.dmp