Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/07/2026, 12:18

General

  • Target
    VAT_N0.20260721074047.exe
  • Size 3.3MB
  • Sample260721-pgmaratsay
  • SHA256 5dabdd4b418ca8b4034b5dea3684da0c10022ca5793c84439e4698e338e25db3
  • 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 2 IoCs

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

  • Enumerates processes with tasklist 1 TTPs 5 IoCs
  • 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_N0.20260721074047.exe
    "C:\Users\Admin\AppData\Local\Temp\VAT_N0.20260721074047.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5816
    • 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:4368
      • C:\Windows\SysWOW64\ComputerDefaults.exe
        C:\Windows\System32\ComputerDefaults.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5300
        • C:\ProgramData\C52B54B2-75EE-4357-B641-D77C342B6E5F_qqf0f8l5vn4p1\Installers\EdgeUpdate.exe
          "EdgeUpdate.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:1220
          • 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:2016
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c start "" /B cmd /C C:\Users\Admin\AppData\Local\Temp\F52C5BB5C37CEA2C84F.BAT
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4972
            • C:\Windows\SysWOW64\cmd.exe
              cmd /C C:\Users\Admin\AppData\Local\Temp\F52C5BB5C37CEA2C84F.BAT
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1608
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq EdgeUpdate.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:3460
              • C:\Windows\SysWOW64\find.exe
                find /I "EdgeUpdate.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5624
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4804
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq EdgeUpdate.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:2532
              • C:\Windows\SysWOW64\find.exe
                find /I "EdgeUpdate.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:4616
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:1724
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq EdgeUpdate.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:5172
              • C:\Windows\SysWOW64\find.exe
                find /I "EdgeUpdate.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:988
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:2764
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq EdgeUpdate.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:556
              • C:\Windows\SysWOW64\find.exe
                find /I "EdgeUpdate.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5692
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4372
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq EdgeUpdate.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:2388
              • C:\Windows\SysWOW64\find.exe
                find /I "EdgeUpdate.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:2860
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:960
  • C:\ProgramData\C52B54B2-75EE-4357-B641-D77C342B6E5F_qqf0f8l5vn4p1\Installers\EdgeUpdate.exe
    C:\ProgramData\C52B54B2-75EE-4357-B641-D77C342B6E5F_qqf0f8l5vn4p1\Installers\EdgeUpdate.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:4928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 800
      2⤵
      • Program crash
      PID:4724
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4928 -ip 4928
    1⤵
      PID:6068

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          EdgeUpdate.exe

          • Path C:\ProgramData\C52B54B2-75EE-4357-B641-D77C342B6E5F_qqf0f8l5vn4p1\Installers\EdgeUpdate.exe
          • Size 3.3MB
          • SHA256 5dabdd4b418ca8b4034b5dea3684da0c10022ca5793c84439e4698e338e25db3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pDFcoRe8.dlL

          • Path C:\ProgramData\C52B54B2-75EE-4357-B641-D77C342B6E5F_qqf0f8l5vn4p1\Installers\pDFcoRe8.dlL
          • Size 3.5MB
          • SHA256 65afea4c7fd6bcb11081821217408da84012897d2e74b9cdb32ee6e99ac6a4c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          F52C5BB5C37CEA2C84F.BAT

          • Path C:\Users\Admin\AppData\Local\Temp\F52C5BB5C37CEA2C84F.BAT
          • Size 859B
          • SHA256 ac16f0c7d0bd5f4158e6f1990c5fc643062e2d529867c8d74ccacdc0a8b589c8
          • MD5 SHA1 SHA512 TLSH

          memory/1220-8-0x00000000051A0000-0x00000000051F7000-memory.dmp

          memory/1220-9-0x00000000051A0000-0x00000000051F7000-memory.dmp

          memory/1220-11-0x00000000051A0000-0x00000000051F7000-memory.dmp

          memory/1220-14-0x00000000051A0000-0x00000000051F7000-memory.dmp

          memory/1220-15-0x00000000051A0000-0x00000000051F7000-memory.dmp