38130c93482996bc6b4828242f63ec0ffb63209409cf92fc9d851f14ee18366c

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
11/07/2024, 18:25

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General

Target

$8/APOConfig.exe
Size

195KB
MD5

77893038ecf3f3a96afaea9db5a8a25f
SHA1

c9ce77d1dfc66390392e5d415e4c349c07a4c0a6
SHA256

36b966087ccbb6a35dbaf7ef22725f18f62bff8cf3514c6a1f66d4ca18485824
SHA512

d7514d0b93224118b329a19ec28c79e83f5779af375080db2f60e2a73e7131a2769850c43a614b0071a3a265dc5745dc016f4963779730550ae49af499bb5818
SSDEEP

6144:9V5+hXJPAWak1DSPdAkAAKHuqBH9AOrAChfBkQULM7m:9n+pJPAWak1DS1eAKHuqBH9XfmQULF

Score

5^/10

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

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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\APOInterface0 = "{FD7F2B29-24D0-4B5C-B177-592C39F9CA10}"	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}\Flags = "15"	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\AudioEngine\AudioProcessingObjects	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}	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 (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\CLSID\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\ = "ClownfishAPO"	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
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, 2016-2021"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{80E0C6D1-9465-43B2-9BD5-27A3A56CF1B3}\MaxInstances = "4294967295"	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	1672	APOConfig.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1672 wrote to memory of 1684	1672	APOConfig.exe	31
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32
PID 1684 wrote to memory of 2092	1684	regsvr32.exe	32

C:\Users\Admin\AppData\Local\Temp\$8\APOConfig.exe
"C:\Users\Admin\AppData\Local\Temp\$8\APOConfig.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1684
- - C:\Windows\system32\regsvr32.exe
    /s "C:\Users\Admin\AppData\Local\Temp\$8\ClownfshAPO64.dll"
    3⤵
    - Modifies registry class
    PID:2092

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x318
1⤵
PID:2816

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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