Overview

overview

10

Static

static

3

fil.zip

windows10-2004-x64

8

fil.zip

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    899s
  • max time network
    878s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/10/2026, 12:11

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General

  • Target
    fil.zip
  • Size 8.7MB
  • Sample261030-pc4dgads5k
  • SHA256 de1f77e3f510a3785b6299b67f418f538374f88af5eb96947e2b97c3c17540e7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredonutloaderloaderpersistenceransomwarespyware

Malware Config

Signatures

  • Family: DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    loaderdonutloader
  • Detects DonutLoader 1 IoCs
    loader
  • 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
  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

    persistence
  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 42 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 5 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:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\fil.zip
    1⤵
      PID:3704
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:5492
      • C:\Users\Admin\Documents\fil\drop.exe
        "C:\Users\Admin\Documents\fil\drop.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:5028
        • C:\Users\Admin\AppData\Local\Temp\sys_task.exe
          "C:\Users\Admin\AppData\Local\Temp\sys_task.exe" -chain -item 4|HKLM\SYSTEM\CurrentControlSet\Services\WinDefend -trigger now
          2⤵
          • Sets service image path in registry
          • Executes dropped EXE
          • NTFS ADS
          • Suspicious behavior: LoadsDriver
          • Suspicious use of AdjustPrivilegeToken
          PID:5344
        • C:\Users\Admin\AppData\Local\Temp\sys_task.exe
          "C:\Users\Admin\AppData\Local\Temp\sys_task.exe" -k MsMpEng.exe
          2⤵
          • Executes dropped EXE
          PID:4232
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe
          2⤵
            PID:4604
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k GPSvcGroup
          1⤵
            PID:5532
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:5964
            • C:\Windows\explorer.exe
              explorer.exe /LOADSAVEDWINDOWS
              2⤵
              • Boot or Logon Autostart Execution: Active Setup
              • 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:2160
          • 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:1104
          • 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:4692
          • C:\Windows\System32\SecurityHealthHost.exe
            \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
            1⤵
              PID:6016

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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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 599B
                  • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  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

                  sys_task.exe
                  • Path C:\Users\Admin\AppData\Local\Temp\sys_task.exe
                  • Size 382KB
                  • SHA256 a1fd881b1f4deb168570f8d86cde628ae683390feaa817e1286d0d4404e61bfe
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  sys_task.exe
                  • Path C:\Users\Admin\AppData\Local\Temp\sys_task.exe
                  • Size 202KB
                  • SHA256 91717c637a4197d965f00404e3b354a9363d560ede5ceaff50b62bbfa11e5bfe
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  memory/1104-27-0x0000028B01E40000-0x0000028B01F40000-memory.dmp
                  Download

                  memory/1104-25-0x0000028B01A20000-0x0000028B01A40000-memory.dmp
                  Download

                  memory/1104-61-0x0000028B146A0000-0x0000028B146C0000-memory.dmp
                  Download

                  memory/1104-17-0x0000028B001E0000-0x0000028B002E0000-memory.dmp
                  Download

                  memory/1104-16-0x0000028B001E0000-0x0000028B002E0000-memory.dmp
                  Download

                  memory/1104-47-0x0000028B01C60000-0x0000028B01C80000-memory.dmp
                  Download

                  memory/2160-204-0x000000000D9A0000-0x000000000E21B000-memory.dmp
                  Download

                  memory/2160-251-0x000000000D9A0000-0x000000000E21B000-memory.dmp
                  Download

                  memory/4604-11-0x000001D61B1E0000-0x000001D61B98C000-memory.dmp
                  Download

                  memory/4604-9-0x000001D61B1E0000-0x000001D61B98C000-memory.dmp
                  Download

                  memory/4604-12-0x000001D61FB10000-0x000001D622AD8000-memory.dmp
                  Download

                  memory/4692-205-0x0000027B28B50000-0x0000027B28E0C000-memory.dmp
                  Download

                  memory/4692-222-0x0000027B28B50000-0x0000027B28E0C000-memory.dmp
                  Download

                  memory/5028-10-0x00007FF62AD80000-0x00007FF62AE64000-memory.dmp
                  Download