d0666f91e134e6522150a46dbe521479993cd708492f090b72940ba050d1a68a

Analysis

max time kernel
149s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
13/09/2026, 01:47

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General

Target
$8/APOConfig.exe
Size 196KB
Sample260913-b7h45ade63
SHA256 d0666f91e134e6522150a46dbe521479993cd708492f090b72940ba050d1a68a
MD5 6dea0364646c299c12239e7402c28e7c
SHA1 a801c2b7c49dcd6e2f8c33b59a2e1ca8c70adb21
SHA512 b3030b301e571649892aa2c081c254eb293520e0bbe3a4df1522d70cbe35661485e1bc7688d8413d88e298ef3463e3542e4bede73ab1b3adfbfc4b76bdd99b21
SSDEEP 6144:lXtzpxJqoyk6H9APPQZLFlejj85JL7guX:PpPK9A8LH5N7gM
TLSH
T11A146D25BDC2D073E666093069E8CA759A29F8B10F609CDB73840FFA4D346D19735B3A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery execution 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-1-5-21-1846164713-4096795028-774071693-1000\Control Panel\International\Geo\Nation	APOConfig.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

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
2224	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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	APOConfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.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

Modifies registry class 19 IoCs

description	ioc	Process
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 (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MajorVersion = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MinOutputConnections = "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\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\InprocServer32\ThreadingModel = "Both"	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}\MinInputConnections = "1"	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}\MaxOutputConnections = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\FriendlyName = "ClownfishAPO"	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}\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
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}\Flags = "15"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MaxInstances = "4294967295"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\InprocServer32	regsvr32.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	956	APOConfig.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 2408	956	APOConfig.exe	87
PID 956 wrote to memory of 2224	956	APOConfig.exe	88
PID 2224 wrote to memory of 4608	2224	cmd.exe	89
PID 4608 wrote to memory of 4284	4608	net.exe	90
PID 2408 wrote to memory of 1744	2408	regsvr32.exe	91
PID 2224 wrote to memory of 4068	2224	cmd.exe	92
PID 4068 wrote to memory of 2660	4068	net.exe	93

C:\Users\Admin\AppData\Local\Temp\$8\APOConfig.exe
"C:\Users\Admin\AppData\Local\Temp\$8\APOConfig.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Windows\system32\regsvr32.exe
    /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
    3⤵
    - Modifies registry class
    PID:1744
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c net stop Audiosrv /y && net start Audiosrv
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SysWOW64\net.exe
    net stop Audiosrv /y
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4608
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop Audiosrv /y
      4⤵
      System Location Discovery: System Language Discovery
      PID:4284
- - C:\Windows\SysWOW64\net.exe
    net start Audiosrv
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4068
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start Audiosrv
      4⤵
      System Location Discovery: System Language Discovery
      PID:2660