9e1dd2a58061382da6d17b05d1b97f56063046538952de052aa0a523623c4d43

Analysis

max time kernel
150s
max time network
130s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
13/09/2026, 01:47

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General

Target
$8/ClownfishVoiceChanger.exe
Size 985KB
Sample260913-b7h45ade63
SHA256 9e1dd2a58061382da6d17b05d1b97f56063046538952de052aa0a523623c4d43
MD5 c5f5ce5a750f79fb8c20157dbd71833a
SHA1 7a8a06a183ba6465bb02984516beee6fdf5c3b85
SHA512 e3fa60275dd6e19098b3d814eb21e8c3106ab6a6f7d2a74a4deb9bd2aaf7f3501869ed62d05565cfdb2244e65e10316fc90f0d550aa77a14f6f9177c66640d37
SSDEEP 12288:LaSsnEVp1pFJq9hRIL8NOvsE6IVEXYD01b6aOffk5NI/r:Oqxp/IRILRkE6IV7Y4OST
TLSH
T13A255B1C6EE502B9E1F2C770C9A16506EA717C85873D99DF03C1C2994E729FACA39F21
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery execution persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4472	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	APOConfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Modifies registry class 19 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MaxOutputConnections = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MaxInstances = "4294967295"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$8\\ClownfshAPO64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\FriendlyName = "ClownfishAPO"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\NumAPOInterfaces = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\APOInterface0 = "{FD7F2B29-24D0-4B5C-B177-592C39F9CA10}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\ = "ClownfishAPO"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MajorVersion = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\Copyright = "Developed in Shark Labs, Sofia, 2016-2026"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MaxInputConnections = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MinOutputConnections = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MinorVersion = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\Flags = "15"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MinInputConnections = "1"	regsvr32.exe

Runs net.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1196	ClownfishVoiceChanger.exe
1196	ClownfishVoiceChanger.exe
1196	ClownfishVoiceChanger.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1196	ClownfishVoiceChanger.exe
1196	ClownfishVoiceChanger.exe
1196	ClownfishVoiceChanger.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1196	ClownfishVoiceChanger.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 2192	1196	ClownfishVoiceChanger.exe	87
PID 2192 wrote to memory of 4572	2192	APOConfig.exe	89
PID 2192 wrote to memory of 4472	2192	APOConfig.exe	90
PID 4472 wrote to memory of 2516	4472	cmd.exe	91
PID 2516 wrote to memory of 4592	2516	net.exe	92
PID 4572 wrote to memory of 2560	4572	regsvr32.exe	93
PID 4472 wrote to memory of 3256	4472	cmd.exe	94
PID 3256 wrote to memory of 4712	3256	net.exe	95

C:\Users\Admin\AppData\Local\Temp\$8\ClownfishVoiceChanger.exe
"C:\Users\Admin\AppData\Local\Temp\$8\ClownfishVoiceChanger.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\$8\APOConfig.exe
  "C:\Users\Admin\AppData\Local\Temp\$8\APOConfig.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\regsvr32.exe
    "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4572
  - - C:\Windows\system32\regsvr32.exe
      /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
      4⤵
      Modifies registry class
      PID:2560
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c net stop Audiosrv /y && net start Audiosrv
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4472
  - - C:\Windows\SysWOW64\net.exe
      net stop Audiosrv /y
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2516
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop Audiosrv /y
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4592
  - - C:\Windows\SysWOW64\net.exe
      net start Audiosrv
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3256
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 start Audiosrv
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4712

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000003C4 0x00000000000003CC
1⤵
PID:4316

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

ClownfishVoiceChanger.ini

Path C:\Users\Admin\Documents\ClownfishVoiceChanger.ini
Size 1KB
SHA256 ec2ed94709f4172dcf1de142853b2d9fde35c514e70c8d0583a68ffbf6a1155a
MD5 fd78233f90abba0b55dbd921828d3338
SHA1 fbdd4baffe63e7a9fa79c728526403137bf11c85
SHA512 d75236d13aad6aae2c1a41186e946532de3a288b8b94a1655809332043d2a51c4feeb441ff2a4d45a315be107cdd9bda4e3fc70ee90e83619a15de505864f77d
TLSH
T1D411EF590F2C9E8A2F54F213247EC50933ED3D08F09A74D89A6A0A8E1CE56AF6364254
MD5 SHA1 SHA512 TLSH

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ClownfishVoiceChanger.ini

Path C:\Users\Admin\Documents\ClownfishVoiceChanger.ini
Size 1KB
SHA256 9997eed85a66c4b7954bf851bfd3815901a23ff66b3018697902ea38828d832a
MD5 cadd7e82d684facb6f1207b97dab36c5
SHA1 3f156906fe7133613afd90c91d97c4902d999d49
SHA512 7c32ba74ac3254535ced497a44158a66fadf39f453c98f78af90c61f64e7a95c0c4ed7888cc7413b924076707d2df97acbfe58fabb5817fd34173bd8b8c1a49e
TLSH
T1C91112590F2C5E852F54F213243EC10833ED3C04F09A70DC9A790A8E1CE56EF6368254
MD5 SHA1 SHA512 TLSH

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ClownfishVoiceChanger.ini

Path C:\Users\Admin\Documents\ClownfishVoiceChanger.ini
Size 174B
SHA256 5c8ea40e55d1437cdfe817ad3a8b9fec9eaab4b45ab560ec4ac42aa872662965
MD5 df1eb050cd798f01a67c1e780238ef2e
SHA1 da22f24986377dad4add4a62c97632b19f280760
SHA512 6a043a55508fd287541fa2f4a9cd0d01b65b95ae9ad106dce7dea2c64c0800240730d88a1d9b26b714ee6c9cd7ae2c8b22e410408d1dbb2866f62758596eeceb
TLSH
T1BFC080192239FC8D6C14221F3438D9145EFD541C745CB194DEBF50D55CD458D558D5A0
MD5 SHA1 SHA512 TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads