Overview

overview

8

Static

static

3

FanCtrl.exe

windows10-2004-x64

1

FanCtrl.exe

windows11-ltsc_2024-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    899s
  • max time network
    498s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/09/2026, 04:26

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General

  • Target
    FanCtrl.exe
  • Size 11.7MB
  • Sample260907-e2q5bseg23
  • SHA256 6b3048bf8bded9a0e5210e8e458771ff5333d75ee34e231b2b8d970250a0dbe6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarepersistenceransomwarespyware

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
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of FindShellTrayWindow 52 IoCs
  • Suspicious use of SendNotifyMessage 39 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\FanCtrl.exe
    "C:\Users\Admin\AppData\Local\Temp\FanCtrl.exe"
    1⤵
      PID:5296
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4184
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4476
        • 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:4940
      • 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:2904
      • 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:1964
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:5416

        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

              memory/2904-56-0x0000016783A20000-0x0000016783A40000-memory.dmp
              Download

              memory/2904-72-0x0000016F9DBF0000-0x0000016F9DC10000-memory.dmp
              Download

              memory/2904-57-0x0000016783E60000-0x0000016783F60000-memory.dmp
              Download

              memory/2904-58-0x0000016783DC0000-0x0000016783DE0000-memory.dmp
              Download

              memory/2904-27-0x00000167801E0000-0x00000167802E0000-memory.dmp
              Download

              memory/5296-0-0x00007FFB132DF000-0x00007FFB132E0000-memory.dmp
              Download

              memory/5296-1-0x0000019DE4710000-0x0000019DE52D0000-memory.dmp
              Download

              memory/5296-2-0x00007FFB13150000-0x00007FFB13AF4000-memory.dmp
              Download

              memory/5296-3-0x00007FFB13150000-0x00007FFB13AF4000-memory.dmp
              Download

              memory/5296-4-0x00007FFB13150000-0x00007FFB13AF4000-memory.dmp
              Download

              memory/5296-5-0x00007FFB13150000-0x00007FFB13AF4000-memory.dmp
              Download