Overview

overview

8

Static

static

3

cd3fa3fa20...dd.exe

windows10-2004-x64

7

cd3fa3fa20...dd.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    130s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 12:19

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    cd3fa3fa200b2327d12802c80323679e71b6c4a28269240132abd61ff37639dd.exe
  • Size 569KB
  • Sample260708-phebjagv7m
  • SHA256 cd3fa3fa200b2327d12802c80323679e71b6c4a28269240132abd61ff37639dd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarebootkitpersistenceransomwarespyware

Malware Config

Signatures

  • 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
  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 3 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 56 IoCs
  • Suspicious use of SendNotifyMessage 42 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 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\cd3fa3fa200b2327d12802c80323679e71b6c4a28269240132abd61ff37639dd.exe
    "C:\Users\Admin\AppData\Local\Temp\cd3fa3fa200b2327d12802c80323679e71b6c4a28269240132abd61ff37639dd.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1164
  • C:\Users\Admin\AppData\Local\Temp\Winiodrv\IoDrv.sys
    C:\Users\Admin\AppData\Local\Temp\Winiodrv\IoDrv.sys
    1⤵
    • Executes dropped EXE
    PID:5516
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:6140
    • 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:3052
  • 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:3752
  • 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:1772

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        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 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        IoDrv.sys
        • Path C:\Users\Admin\AppData\Local\Temp\Winiodrv\IoDrv.sys
        • Size 14KB
        • SHA256 11bd2c9f9e2397c9a16e0990e4ed2cf0679498fe0fd418a3dfdac60b5c160ee5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3752-67-0x0000027614140000-0x0000027614160000-memory.dmp
        Download

        memory/3752-26-0x00000276001E0000-0x00000276002E0000-memory.dmp
        Download

        memory/3752-25-0x00000276001E0000-0x00000276002E0000-memory.dmp
        Download

        memory/3752-39-0x0000027601CF0000-0x0000027601D10000-memory.dmp
        Download

        memory/3752-33-0x0000027601D50000-0x0000027601E50000-memory.dmp
        Download

        memory/3752-32-0x0000027601930000-0x0000027601950000-memory.dmp
        Download

        memory/3752-27-0x00000276001E0000-0x00000276002E0000-memory.dmp
        Download

        memory/3752-179-0x0000027616B50000-0x0000027616D33000-memory.dmp
        Download

        memory/5516-2-0x0000000000010000-0x0000000000017000-memory.dmp
        Download