Overview

overview

8

Static

static

3

VoiceChang...8).exe

windows10-2004-x64

4

VoiceChang...8).exe

windows11-ltsc_2024-x64

4

$8/APOConfig.exe

windows10-2004-x64

5

$8/APOConfig.exe

windows11-ltsc_2024-x64

5

$8/AudioChanger.exe

windows10-2004-x64

1

$8/AudioChanger.exe

windows11-ltsc_2024-x64

1

$8/Clownfi...er.exe

windows10-2004-x64

5

$8/Clownfi...er.exe

windows11-ltsc_2024-x64

5

$8/ClownfshAPO64.dll

windows10-2004-x64

5

$8/ClownfshAPO64.dll

windows11-ltsc_2024-x64

6

$PLUGINSDI...LL.dll

windows10-2004-x64

3

$PLUGINSDI...LL.dll

windows11-ltsc_2024-x64

8

$PLUGINSDI...st.dll

windows10-2004-x64

3

$PLUGINSDI...st.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

8

$PLUGINSDI...gs.dll

windows10-2004-x64

3

$PLUGINSDI...gs.dll

windows11-ltsc_2024-x64

3

Analysis

  • max time kernel
    111s
  • max time network
    123s
  • 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, 01:32

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General

  • Target
    $PLUGINSDIR/KillProcDLL.dll
  • Size 14KB
  • Sample260708-byeekshy7k
  • SHA256 0fe15b023e21b7054fabb3d47b6084d60f8e474d8f9ca3a0a25dcb2097d6f0b8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistencespyware

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.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • 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 36 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 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:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\KillProcDLL.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\KillProcDLL.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2692
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 500
        3⤵
        • Program crash
        PID:5552
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 2692 -ip 2692
    1⤵
      PID:1100
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1120
      • 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:3624
    • 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:4196
    • 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:2760

    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/2692-0-0x0000000067380000-0x000000006738B000-memory.dmp
          Download

          memory/2760-22-0x00000281001E0000-0x00000281002E0000-memory.dmp
          Download

          memory/2760-45-0x0000028103DB0000-0x0000028103DD0000-memory.dmp
          Download

          memory/2760-35-0x0000028103ED0000-0x0000028103FD0000-memory.dmp
          Download

          memory/2760-68-0x00000281152C0000-0x00000281152E0000-memory.dmp
          Download

          memory/2760-34-0x0000028103C30000-0x0000028103C50000-memory.dmp
          Download