Overview

overview

10

Static

static

5

start.exe

windows10-2004-x64

10

start.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/06/2026, 16:07

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General

  • Target
    start.exe
  • Size 818KB
  • Sample260623-tkpbqset2t
  • SHA256 edc0ba83464195a702b363aea7f3537baf99a098c2d095b9aaa11063c8f3e47c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredefense_evasionexecutionpersistenceprivilege_escalationransomwarespyware

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 19 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Looks up external IP address via web service 7 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 39 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 10 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\start.exe
    "C:\Users\Admin\AppData\Local\Temp\start.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" netsh advfirewall firewall add rule name="Mok:<TD^<kjO<J" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" enable=yes & exit
      2⤵
        PID:1056
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6092
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5204
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4984
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3448
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /C taskkill /im explorer.exe /f > NUL 2>&1 && timeout /t 3 /nobreak > NUL && start explorer.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4296
        • C:\Windows\system32\taskkill.exe
          taskkill /im explorer.exe /f
          3⤵
          • Loads dropped DLL
          • Kills process with taskkill
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5912
        • C:\Windows\system32\timeout.exe
          timeout /t 3 /nobreak
          3⤵
          • Loads dropped DLL
          • Delays execution with timeout.exe
          • Suspicious behavior: EnumeratesProcesses
          PID:2200
        • C:\Windows\explorer.exe
          explorer.exe
          3⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Loads dropped DLL
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:2820
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5668
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5036
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3492
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1780
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1764
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4976
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5828
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3156
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3232
    • C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe
      "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Windows\system32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5376
        • C:\Windows\System32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4464
      • C:\Windows\system32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4252
        • C:\Windows\System32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1720
      • C:\Windows\system32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Windows\System32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2512
      • C:\Windows\system32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4696
        • C:\Windows\System32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "" /tr "C:\Windows\Sub\xdwdWindowsUpdate.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2752
    • C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe
      "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:5928
    • C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe
      "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:1208
    • C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe
      "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:3372
    • C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe
      "C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:5796

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 595B
          • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          xdwdMalwareDef.exe
          • Path C:\Users\Admin\AppData\Roaming\Sub\xdwdMalwareDef.exe
          • Size 818KB
          • SHA256 edc0ba83464195a702b363aea7f3537baf99a098c2d095b9aaa11063c8f3e47c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          xdwd.dll
          • Path C:\Windows\xdwd.dll
          • Size 136KB
          • SHA256 35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1704-5-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-125-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-0-0x000001E5AE8E0000-0x000001E5AE9AE000-memory.dmp
          Download

          memory/1704-6-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-7-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-8-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-9-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-3-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-212-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-4-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/1704-1-0x00007FF8C989F000-0x00007FF8C98A0000-memory.dmp
          Download

          memory/1704-2-0x00007FF8C9710000-0x00007FF8CA0B4000-memory.dmp
          Download

          memory/3156-21-0x00000204801E0000-0x00000204802E0000-memory.dmp
          Download

          memory/3156-20-0x00000204801E0000-0x00000204802E0000-memory.dmp
          Download

          memory/3156-32-0x0000020482E60000-0x0000020482F60000-memory.dmp
          Download

          memory/3156-41-0x0000020482E00000-0x0000020482E20000-memory.dmp
          Download

          memory/3156-31-0x0000020482A20000-0x0000020482A40000-memory.dmp
          Download

          memory/3156-65-0x0000020494280000-0x00000204942A0000-memory.dmp
          Download

          memory/3156-22-0x00000204801E0000-0x00000204802E0000-memory.dmp
          Download