Analysis

  • max time kernel
    300s
  • max time network
    299s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 16:27

General

  • Target
    20260821085422.exe
  • Size 3.0MB
  • Sample260823-tybb2as1dy
  • SHA256 53a4e54f23228c129e2f3d6f34ac457878e49ed2bb5ac13f05c10a55693d2dd8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 TTPs 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Discovers running processes 1 TTPs 5 IoCs

    Running process information can be used to identify security tools or plan follow-on actions.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Executes a command shell one-liner 1 TTPs 3 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 23 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 5 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20260821085422.exe
    "C:\Users\Admin\AppData\Local\Temp\20260821085422.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2192
    • C:\Windows\SysWOW64\cmd.exe
      /c C:\Windows\System32\ComputerDefaults.exe
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\SysWOW64\ComputerDefaults.exe
        C:\Windows\System32\ComputerDefaults.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:424
        • C:\ProgramData\NvContainer.NvapiMonitor.{041D9F44-22FE-4FDB-B45B-152DAA10BEBA}\NVPLUGINNVAPIMONITOR.NVX.VBE\NvPluginNvapiMonitor.NVX.exe
          "NvPluginNvapiMonitor.NVX.exe"
          4⤵
          • Enumerates connected drives
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4264
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /f /im cmd.exe
            5⤵
            • System Location Discovery: System Language Discovery
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2400
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c start "" /B cmd /C C:\ProgramData\S-1-5-21-2246396966-3025826688-3847171515\S-1-5-21-2246396966-3025826688-3847171515.CMD
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:5640
            • C:\Windows\SysWOW64\cmd.exe
              cmd /C C:\ProgramData\S-1-5-21-2246396966-3025826688-3847171515\S-1-5-21-2246396966-3025826688-3847171515.CMD
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4312
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq NvPluginNvapiMonitor.NVX.exe" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:1452
              • C:\Windows\SysWOW64\find.exe
                FIND /I "NvPluginNvapiMonitor.NVX.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:3448
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:1160
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq NvPluginNvapiMonitor.NVX.exe" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:1308
              • C:\Windows\SysWOW64\find.exe
                FIND /I "NvPluginNvapiMonitor.NVX.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:4428
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3056
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq NvPluginNvapiMonitor.NVX.exe" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:4340
              • C:\Windows\SysWOW64\find.exe
                FIND /I "NvPluginNvapiMonitor.NVX.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:3120
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4160
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq NvPluginNvapiMonitor.NVX.exe" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:4696
              • C:\Windows\SysWOW64\find.exe
                FIND /I "NvPluginNvapiMonitor.NVX.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:3032
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:1964
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq NvPluginNvapiMonitor.NVX.exe" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:264
              • C:\Windows\SysWOW64\find.exe
                FIND /I "NvPluginNvapiMonitor.NVX.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:1088
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4896
  • C:\ProgramData\NvContainer.NvapiMonitor.{041D9F44-22FE-4FDB-B45B-152DAA10BEBA}\NVPLUGINNVAPIMONITOR.NVX.VBE\NvPluginNvapiMonitor.NVX.exe
    C:\ProgramData\NvContainer.NvapiMonitor.{041D9F44-22FE-4FDB-B45B-152DAA10BEBA}\NVPLUGINNVAPIMONITOR.NVX.VBE\NvPluginNvapiMonitor.NVX.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2928

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        hdp.log

        • Path C:\ProgramData\NvContainer.NvapiMonitor.{041D9F44-22FE-4FDB-B45B-152DAA10BEBA}\NVPLUGINNVAPIMONITOR.NVX.VBE\logger\hdp.log
        • Size 336B
        • SHA256 082e64bbf16ca8b98edab78a8d98ed614d8baeb3781d7141872d9a2226b2a9f3
        • MD5 SHA1 SHA512 TLSH

        NvPluginNvapiMonitor.NVX.exe

        • Path C:\ProgramData\NvContainer.NvapiMonitor.{041D9F44-22FE-4FDB-B45B-152DAA10BEBA}\nvpluginnvapimonitor.nvx.vbe\NvPluginNvapiMonitor.NVX.exe
        • Size 3.0MB
        • SHA256 53a4e54f23228c129e2f3d6f34ac457878e49ed2bb5ac13f05c10a55693d2dd8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hdp.dLL

        • Path C:\ProgramData\NvContainer.NvapiMonitor.{041D9F44-22FE-4FDB-B45B-152DAA10BEBA}\nvpluginnvapimonitor.nvx.vbe\hdp.dLL
        • Size 5.8MB
        • SHA256 d93b8f420b4f7b912db5e45d6c19f900896a80027d16efce5023764ef6a49396
        • MD5 SHA1 SHA512 SSDEEP TLSH

        S-1-5-21-2246396966-3025826688-3847171515.CMD

        • Path C:\ProgramData\S-1-5-21-2246396966-3025826688-3847171515\S-1-5-21-2246396966-3025826688-3847171515.CMD
        • Size 1KB
        • SHA256 02165d9184e1d257752a8b3a2aa9347b8d1785c5e8a91562c163dc74dd008178
        • MD5 SHA1 SHA512 TLSH

        memory/4264-9-0x0000000004AA0000-0x0000000004AF8000-memory.dmp

        memory/4264-10-0x0000000004AA0000-0x0000000004AF8000-memory.dmp

        memory/4264-12-0x0000000004AA0000-0x0000000004AF8000-memory.dmp

        memory/4264-14-0x0000000004AA0000-0x0000000004AF8000-memory.dmp

        memory/4264-15-0x0000000004AA0000-0x0000000004AF8000-memory.dmp