Overview

overview

8

Static

static

3

YourHappyP...lp.dll

windows10-2004-x64

1

YourHappyP...64.dll

windows10-2004-x64

1

YourHappyP...64.dll

windows11-ltsc_2024-x64

1

YourHappyP...64.dll

windows10-2004-x64

1

YourHappyP...64.dll

windows11-ltsc_2024-x64

1

YourHappyP...64.dll

windows10-2004-x64

1

YourHappyP...64.dll

windows11-ltsc_2024-x64

1

YourHappyP...64.dll

windows10-2004-x64

1

YourHappyP...64.dll

windows11-ltsc_2024-x64

1

YourHappyP...me.dll

windows10-2004-x64

1

YourHappyP...st.dll

windows10-2004-x64

1

YourHappyP...st.dll

windows11-ltsc_2024-x64

8

YourHappyP...64.exe

windows10-2004-x64

7

YourHappyP...64.exe

windows11-ltsc_2024-x64

8

YourHappyP...re.dll

windows10-2004-x64

1

YourHappyP...re.dll

windows11-ltsc_2024-x64

1

YourHappyP...rs.dll

windows10-2004-x64

1

YourHappyP...rs.dll

windows11-ltsc_2024-x64

8

YourHappyP...se.dll

windows10-2004-x64

1

YourHappyP...se.dll

windows11-ltsc_2024-x64

8

YourHappyP...al.exe

windows10-2004-x64

1

YourHappyP...al.exe

windows11-ltsc_2024-x64

8

YourHappyP...70.dll

windows10-2004-x64

1

YourHappyP...70.dll

windows11-ltsc_2024-x64

1

YourHappyP...70.dll

windows10-2004-x64

1

YourHappyP...70.dll

windows11-ltsc_2024-x64

1

YourHappyP...70.dll

windows10-2004-x64

1

YourHappyP...70.dll

windows11-ltsc_2024-x64

6

YourHappyP...70.dll

windows10-2004-x64

1

YourHappyP...70.dll

windows11-ltsc_2024-x64

1

YourHappyP...70.dll

windows10-2004-x64

1

YourHappyP...70.dll

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    901s
  • max time network
    568s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/08/2026, 02:34

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General

  • Target
    YourHappyPlace/Windows/Engine/Binaries/ThirdParty/Windows/XAudio2_9/x64/xaudio2_9redist.dll
  • Size 843KB
  • Sample260825-c2wnpsej2s
  • SHA256 ee1db1affd936dc59540199b6b692a467cb4f9d050041b572acc1f5302e012bc
  • 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 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 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:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\YourHappyPlace\Windows\Engine\Binaries\ThirdParty\Windows\XAudio2_9\x64\xaudio2_9redist.dll,#1
    1⤵
      PID:4192
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:5528
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1992
        • 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:2912
      • 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:5284
      • 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:4892
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:5396

        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 595B
              • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              memory/5284-21-0x0000026D800C0000-0x0000026D801C0000-memory.dmp
              Download

              memory/5284-53-0x0000026D83B70000-0x0000026D83B90000-memory.dmp
              Download

              memory/5284-67-0x0000026D940F0000-0x0000026D94110000-memory.dmp
              Download

              memory/5284-38-0x0000026D93D70000-0x0000026D93E70000-memory.dmp
              Download

              memory/5284-37-0x0000026D83920000-0x0000026D83940000-memory.dmp
              Download