Overview

overview

8

Static

static

3

MediaServi...fs.exe

windows10-2004-x64

1

MediaServi...fs.exe

windows11-ltsc_2024-x64

8

MediaServi...fo.exe

windows10-2004-x64

1

MediaServi...fo.exe

windows11-ltsc_2024-x64

8

MediaServi...ct.exe

windows10-2004-x64

1

MediaServi...ct.exe

windows11-ltsc_2024-x64

8

MediaServi...nt.exe

windows10-2004-x64

1

MediaServi...nt.exe

windows11-ltsc_2024-x64

1

MediaServi...nd.exe

windows10-2004-x64

1

MediaServi...nd.exe

windows11-ltsc_2024-x64

8

MediaServi...ry.exe

windows10-2004-x64

1

MediaServi...ry.exe

windows11-ltsc_2024-x64

8

MediaServi...eg.exe

windows10-2004-x64

1

MediaServi...eg.exe

windows11-ltsc_2024-x64

8

MediaServi...ll.exe

windows10-2004-x64

1

MediaServi...ll.exe

windows11-ltsc_2024-x64

1

MediaServi...ra.exe

windows10-2004-x64

1

MediaServi...ra.exe

windows11-ltsc_2024-x64

1

MediaServi...ed.exe

windows10-2004-x64

1

MediaServi...ed.exe

windows11-ltsc_2024-x64

8

MediaServi...ct.exe

windows10-2004-x64

1

MediaServi...ct.exe

windows11-ltsc_2024-x64

1

MediaServi...dm.exe

windows10-2004-x64

1

MediaServi...dm.exe

windows11-ltsc_2024-x64

8

MediaServi...ct.exe

windows10-2004-x64

1

MediaServi...ct.exe

windows11-ltsc_2024-x64

1

MediaServi...in.exe

windows10-2004-x64

1

MediaServi...in.exe

windows11-ltsc_2024-x64

1

MediaServi...in.exe

windows10-2004-x64

8

MediaServi...in.exe

windows11-ltsc_2024-x64

1

MediaServi...er.exe

windows10-2004-x64

1

MediaServi...er.exe

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    419s
  • max time network
    553s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 08:45

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General

  • Target
    MediaService/Scripts/thumbcache-extract-indexed.exe
  • Size 105KB
  • Sample260730-kn3tvsx1ct
  • SHA256 e0e037f8ec23628461a958cbaa9a3d341e3b8917ce2cc236b01a7ddba34fdff5
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarepersistencespyware

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 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 33 IoCs
  • Suspicious use of SendNotifyMessage 20 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\MediaService\Scripts\thumbcache-extract-indexed.exe
    "C:\Users\Admin\AppData\Local\Temp\MediaService\Scripts\thumbcache-extract-indexed.exe"
    1⤵
      PID:936
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:1076
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:5160
        • 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:2904
      • 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:4048
      • 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:4036

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

            memory/4048-26-0x0000021A88EE0000-0x0000021A88F00000-memory.dmp
            Download

            memory/4048-15-0x0000021A9B0C0000-0x0000021A9B1C0000-memory.dmp
            Download

            memory/4048-49-0x0000021A9B960000-0x0000021A9B980000-memory.dmp
            Download

            memory/4048-14-0x0000021A88B80000-0x0000021A88BA0000-memory.dmp
            Download

            memory/4048-3-0x0000021A87360000-0x0000021A87460000-memory.dmp
            Download