Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 03:07

General

  • Target
    VatNo.20260723001848.exe
  • Size 2.5MB
  • Sample260723-dmancsdk61
  • SHA256 88e32dfea6c94b16a89e9c3b66a01f5bc1c99b4abddb48060cbe5c06b77907d3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 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\VatNo.20260723001848.exe
    "C:\Users\Admin\AppData\Local\Temp\VatNo.20260723001848.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4288
    • 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:4700
      • C:\Windows\SysWOW64\ComputerDefaults.exe
        C:\Windows\System32\ComputerDefaults.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4144
        • C:\ProgramData\{B96BFC87-4EF4-4841-BB67-72FF6968918F}v25.71.77837\packages\M365Copilot.exe
          "M365Copilot.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Enumerates connected drives
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5332
          • 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:2168
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c start "" /B cmd /C C:\Users\Admin\AppData\Local\Temp\DECFCE54F9FDA28406B.BAT
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4896
            • C:\Windows\SysWOW64\cmd.exe
              cmd /C C:\Users\Admin\AppData\Local\Temp\DECFCE54F9FDA28406B.BAT
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4596
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq M365Copilot.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:4412
              • C:\Windows\SysWOW64\find.exe
                find /I "M365Copilot.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:1152
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4924
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq M365Copilot.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:6080
              • C:\Windows\SysWOW64\find.exe
                find /I "M365Copilot.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:1568
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:5428
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq M365Copilot.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:5160
              • C:\Windows\SysWOW64\find.exe
                find /I "M365Copilot.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:3472
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:5492
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq M365Copilot.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:1444
              • C:\Windows\SysWOW64\find.exe
                find /I "M365Copilot.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5284
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3944
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /FI "IMAGENAME eq M365Copilot.exe"
                7⤵
                • Enumerates processes with tasklist
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:5892
              • C:\Windows\SysWOW64\find.exe
                find /I "M365Copilot.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:5596
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 30 /nobreak
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4692
  • C:\ProgramData\{B96BFC87-4EF4-4841-BB67-72FF6968918F}v25.71.77837\packages\M365Copilot.exe
    C:\ProgramData\{B96BFC87-4EF4-4841-BB67-72FF6968918F}v25.71.77837\packages\M365Copilot.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:2668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 764
      2⤵
      • Program crash
      PID:5424
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2668 -ip 2668
    1⤵
      PID:4648

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          M365Copilot.exe

          • Path C:\ProgramData\{B96BFC87-4EF4-4841-BB67-72FF6968918F}v25.71.77837\packages\M365Copilot.exe
          • Size 2.5MB
          • SHA256 88e32dfea6c94b16a89e9c3b66a01f5bc1c99b4abddb48060cbe5c06b77907d3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pdFcOrE8.DlL

          • Path C:\ProgramData\{B96BFC87-4EF4-4841-BB67-72FF6968918F}v25.71.77837\packages\pdFcOrE8.DlL
          • Size 3.5MB
          • SHA256 f1b952fe2cfb155727d8ab4e30bbfbf069768af005f6b1fe4f25858559defc4e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          DECFCE54F9FDA28406B.BAT

          • Path C:\Users\Admin\AppData\Local\Temp\DECFCE54F9FDA28406B.BAT
          • Size 860B
          • SHA256 2c214a81f9ed28f43a83594e68d95dc7844ebd2d5321a9b2307eca2072bebf49
          • MD5 SHA1 SHA512 TLSH

          memory/5332-8-0x0000000004BD0000-0x0000000004C27000-memory.dmp

          memory/5332-9-0x0000000004BD0000-0x0000000004C27000-memory.dmp

          memory/5332-11-0x0000000004BD0000-0x0000000004C27000-memory.dmp

          memory/5332-14-0x0000000004BD0000-0x0000000004C27000-memory.dmp

          memory/5332-15-0x0000000004BD0000-0x0000000004C27000-memory.dmp