ebf969ec3f669a8287810be09bad9d512edd0611f097c3c36d4c99d15ee09463

Analysis

max time kernel
140s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 17:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

$8/ClownfishVoiceChanger.exe
Size

862KB
MD5

10f9a97d64aa92c48f6c8535dfdfe08c
SHA1

07480480e7ce22277912006cd69a151aadaa2c20
SHA256

e726c5afb2b5dc493bf141eb3d0eac7506ee27253df1941816bfeb0d1e1191a7
SHA512

c8ce4b7694e07d9f00cd6291f4529433d202bb544771f0830ed9f63ebf3dfd2370308491d835fca7dd17f9ee821cc81cf3d734b7305a02a5beac39d1a59e1aac
SSDEEP

12288:bOp8vZHvmz3qvmJMwyK/MjD2bWo9uNLNC7GWJG5U6wOOTiBm/b:bOpMZH+e4DN/Mn2+NLNChoNSb

Score

5^/10

discovery persistence privilege_escalation

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	ClownfishVoiceChanger.exe

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

System Location Discovery: System Language Discovery 1 TTPs 2 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

Modifies registry class 19 IoCs

description	ioc	Process
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}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects	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}\MajorVersion = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\ = "ClownfishAPO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\Copyright = "Developed in Shark Labs, Sofia, 2016-2024"	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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MinInputConnections = "1"	regsvr32.exe
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 (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
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}\MinorVersion = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\Flags = "15"	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\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\InprocServer32	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	2912	APOConfig.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4976	ClownfishVoiceChanger.exe
4976	ClownfishVoiceChanger.exe
4976	ClownfishVoiceChanger.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4976	ClownfishVoiceChanger.exe
4976	ClownfishVoiceChanger.exe
4976	ClownfishVoiceChanger.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4976	ClownfishVoiceChanger.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 2912	4976	ClownfishVoiceChanger.exe	95
PID 4976 wrote to memory of 2912	4976	ClownfishVoiceChanger.exe	95
PID 4976 wrote to memory of 2912	4976	ClownfishVoiceChanger.exe	95
PID 2912 wrote to memory of 2560	2912	APOConfig.exe	98
PID 2912 wrote to memory of 2560	2912	APOConfig.exe	98
PID 2912 wrote to memory of 2560	2912	APOConfig.exe	98
PID 2560 wrote to memory of 3932	2560	regsvr32.exe	99
PID 2560 wrote to memory of 3932	2560	regsvr32.exe	99

C:\Users\Admin\AppData\Local\Temp\$8\ClownfishVoiceChanger.exe
"C:\Users\Admin\AppData\Local\Temp\$8\ClownfishVoiceChanger.exe"
1⤵
- Checks computer location settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4976
- 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 AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2912
- - 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:2560
  - - C:\Windows\system32\regsvr32.exe
      /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
      4⤵
      Modifies registry class
      PID:3932

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:868

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x508 0x4ac
1⤵
PID:4600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\ClownfishVoiceChanger.ini

Filesize
748B

MD5
4f113e85d9aed4c508015c465fbb92fb

SHA1
39ee7cf5c0d9b83ae6d9d48c9797a2f78e418c86

SHA256
952af17bf4042a0428ba28eb4ed3eb8f878092d1d0b6419a78fcbed9e093551e

SHA512
4ae8484cde1c3025fe35dada0b7b37e89fb6194657a01d007be82b3a9bedce9b30296cb94b8357b90fc8980297eca4c0ae5897b63b460938317506693024679f

Download Submit