Overview

overview

8

Static

static

3

Wave Insta...er.exe

windows10-2004-x64

1

Wave Insta...er.exe

windows11-ltsc_2024-x64

8

Wave Insta...ns.dll

windows10-2004-x64

1

Wave Insta...ns.dll

windows11-ltsc_2024-x64

1

Wave Insta...es.dll

windows10-2004-x64

1

Wave Insta...es.dll

windows11-ltsc_2024-x64

1

Wave Insta...le.dll

windows10-2004-x64

1

Wave Insta...le.dll

windows11-ltsc_2024-x64

1

Wave Insta...ss.dll

windows10-2004-x64

1

Wave Insta...ss.dll

windows11-ltsc_2024-x64

1

Wave Insta...ib.dll

windows10-2004-x64

1

Wave Insta...ib.dll

windows11-ltsc_2024-x64

1

Wave Insta...es.dll

windows10-2004-x64

1

Wave Insta...es.dll

windows11-ltsc_2024-x64

6

Wave Insta...me.dll

windows10-2004-x64

1

Wave Insta...me.dll

windows11-ltsc_2024-x64

6

Wave Insta...ms.dll

windows10-2004-x64

1

Wave Insta...ms.dll

windows11-ltsc_2024-x64

1

Wave Insta...ws.dll

windows10-2004-x64

1

Wave Insta...ws.dll

windows11-ltsc_2024-x64

1

Wave Insta...al.dll

windows10-2004-x64

1

Wave Insta...al.dll

windows11-ltsc_2024-x64

1

Wave Insta...ns.dll

windows10-2004-x64

1

Wave Insta...ns.dll

windows11-ltsc_2024-x64

6

Wave Insta...ad.dll

windows10-2004-x64

1

Wave Insta...ad.dll

windows11-ltsc_2024-x64

6

Wave Insta...ng.dll

windows10-2004-x64

1

Wave Insta...ng.dll

windows11-ltsc_2024-x64

1

Wave Insta...ve.exe

windows10-2004-x64

4

Wave Insta...ve.exe

windows11-ltsc_2024-x64

4

Wave Insta...it.dll

windows10-2004-x64

1

Wave Insta...it.dll

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    299s
  • max time network
    287s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 18:39

Sharing

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General

  • Target
    Wave Installer/Microsoft.Spark.Worker.exe
  • Size 62KB
  • Sample260703-xarkwset2z
  • SHA256 b4413ac620c51e8e97094e9b112cda405c6f70b1bfa338c8a67b5ac58b2aa60c
  • 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 32 IoCs
  • Suspicious use of FindShellTrayWindow 55 IoCs
  • Suspicious use of SendNotifyMessage 41 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\Wave Installer\Microsoft.Spark.Worker.exe
    "C:\Users\Admin\AppData\Local\Temp\Wave Installer\Microsoft.Spark.Worker.exe"
    1⤵
      PID:4696
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5432
      • 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:4132
    • 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:2352
    • 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:2512

    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 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

          memory/2352-25-0x0000017D2DAA0000-0x0000017D2DBA0000-memory.dmp
          Download

          memory/2352-56-0x0000018543690000-0x00000185436B0000-memory.dmp
          Download

          memory/2352-42-0x0000018533120000-0x0000018533140000-memory.dmp
          Download

          memory/2352-32-0x00000185332E0000-0x00000185333E0000-memory.dmp
          Download

          memory/2352-31-0x000001852FFE0000-0x0000018530000000-memory.dmp
          Download

          memory/4696-0-0x0000020FB3100000-0x0000020FB3114000-memory.dmp
          Download

          memory/4696-1-0x00007FFCBEF7F000-0x00007FFCBEF80000-memory.dmp
          Download

          memory/4696-2-0x00007FFCBEDF0000-0x00007FFCBF794000-memory.dmp
          Download

          memory/4696-3-0x0000020FCD870000-0x0000020FCE4FE000-memory.dmp
          Download

          memory/4696-4-0x00007FFCBEDF0000-0x00007FFCBF794000-memory.dmp
          Download