Analysis

  • max time kernel
    299s
  • max time network
    303s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 16:18

General

  • Target
    Vat.N0.20260803123012.exe
  • Size 3.5MB
  • Sample260804-tr2kmsstev
  • SHA256 b869fbddbda07a9b4e511f533b4b7ac2a161cc88dae0519e0e55347c74db94a8
  • 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 2 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.

  • Program crash 1 IoCs
  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Vat.N0.20260803123012.exe
    "C:\Users\Admin\AppData\Local\Temp\Vat.N0.20260803123012.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4764
    • 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:3508
      • C:\Windows\SysWOW64\ComputerDefaults.exe
        C:\Windows\System32\ComputerDefaults.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2380
        • C:\ProgramData\S-1-5-21-714353704-4017624241-2006901283-7482\SystemAppData\EdgeWebView.EXE
          "EdgeWebView.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:5984
          • 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:5280
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c start "" /B cmd /C C:\Users\Admin\AppData\Local\Temp\D8A59ACF7F4FB8D9079.CMD
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4148
            • C:\Windows\SysWOW64\cmd.exe
              cmd /C C:\Users\Admin\AppData\Local\Temp\D8A59ACF7F4FB8D9079.CMD
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:5580
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq EdgeWebView.EXE" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:5468
              • C:\Windows\SysWOW64\find.exe
                FIND /I "EdgeWebView.EXE"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5836
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:1852
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq EdgeWebView.EXE" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:2472
              • C:\Windows\SysWOW64\find.exe
                FIND /I "EdgeWebView.EXE"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:6104
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3228
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq EdgeWebView.EXE" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:988
              • C:\Windows\SysWOW64\find.exe
                FIND /I "EdgeWebView.EXE"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5904
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:1936
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq EdgeWebView.EXE" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:2280
              • C:\Windows\SysWOW64\find.exe
                FIND /I "EdgeWebView.EXE"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:1036
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3296
              • C:\Windows\SysWOW64\tasklist.exe
                TASKLIST /FI "IMAGENAME eq EdgeWebView.EXE" /FO CSV
                7⤵
                • Discovers running processes
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:4660
              • C:\Windows\SysWOW64\find.exe
                FIND /I "EdgeWebView.EXE"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:4672
              • C:\Windows\SysWOW64\timeout.exe
                TIMEOUT /t 60 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4504
  • C:\ProgramData\S-1-5-21-714353704-4017624241-2006901283-7482\SystemAppData\EdgeWebView.EXE
    C:\ProgramData\S-1-5-21-714353704-4017624241-2006901283-7482\SystemAppData\EdgeWebView.EXE
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:5452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5452 -s 580
      2⤵
      • Program crash
      PID:4260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5452 -ip 5452
    1⤵
      PID:3784

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          EdgeWebView.EXE

          • Path C:\ProgramData\S-1-5-21-714353704-4017624241-2006901283-7482\SystemAppData\EdgeWebView.EXE
          • Size 3.5MB
          • SHA256 b869fbddbda07a9b4e511f533b4b7ac2a161cc88dae0519e0e55347c74db94a8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          PDFCore8.dll

          • Path C:\ProgramData\S-1-5-21-714353704-4017624241-2006901283-7482\SystemAppData\PDFCore8.dll
          • Size 3.9MB
          • SHA256 e63d084eff3dd8962b4cce1e7989dbcb6c0ca1a6cfd321d0212d3950071067b3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          D8A59ACF7F4FB8D9079.CMD

          • Path C:\Users\Admin\AppData\Local\Temp\D8A59ACF7F4FB8D9079.CMD
          • Size 1KB
          • SHA256 44235a445e295407aa39796b92cc73c3f6351b398a5d336be89de46e2f19a13a
          • MD5 SHA1 SHA512 TLSH

          memory/5984-14-0x0000000003500000-0x0000000003558000-memory.dmp

          memory/5984-15-0x0000000003500000-0x0000000003558000-memory.dmp

          memory/5984-17-0x0000000003500000-0x0000000003558000-memory.dmp

          memory/5984-18-0x0000000003500000-0x0000000003558000-memory.dmp

          memory/5984-19-0x0000000003500000-0x0000000003558000-memory.dmp