77374fb48cda6e8739732672bbe6fed90e2e4a0ceed0a4e460f193135485fe50

Analysis

max time kernel
134s
max time network
142s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
07-09-2024 16:44

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General

Target

DeviceSelector.exe
Size

518KB
MD5

ac1ccdd400ddf4f7fbe82af9d3a97b84
SHA1

5d20a16e1cd0ac84e545762ca84c0ab95f5e3786
SHA256

8931df36c0af402faf328aa1e94c211ea3df91fccc21ce3194621daff4e49a9f
SHA512

b475517e9368fba6f4d9add898d7d4fc9dc402f1c510571e986e8693cbccf61d65e381dec3b191504c8ddf67f7f915ee9162c1699fc2ef5ef73c57156dff788b
SSDEEP

6144:5zKbJqbPiX2SljtWOOJsABtgY1DNar8IZc1Jfi645XEKD8Wg9/JF2weTzd/nuxOl:sqbPiX2g57BY1D4HZ8fixB0W8Z8f

Score

7^/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 37 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MajorVersion = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\APOInterface0 = "{FD7F2B29-24D0-4B5C-B177-592C39F9CA10}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MinorVersion = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MaxInstances = "4294967295"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\FriendlyName = "EqualizerAPO"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MinInputConnections = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MaxInstances = "4294967295"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MinOutputConnections = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\NumAPOInterfaces = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\APOInterface0 = "{FD7F2B29-24D0-4B5C-B177-592C39F9CA10}"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MinOutputConnections = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MaxOutputConnections = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MaxInputConnections = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\ = "EqualizerAPO Post-Mix Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\ = "EqualizerAPO Pre-Mix Class"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MinInputConnections = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MinorVersion = "0"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\Flags = "13"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EqualizerAPO.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\Flags = "13"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MaxInputConnections = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\NumAPOInterfaces = "1"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\MajorVersion = "1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\Copyright = "Copyright (C) 2015"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\MaxOutputConnections = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{EACD2258-FCAC-4FF4-B36D-419E924A6D79}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EqualizerAPO.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\FriendlyName = "EqualizerAPO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AudioEngine\AudioProcessingObjects\{EC1CC9CE-FAED-4822-828A-82A81A6F018F}\Copyright = "Copyright (C) 2015"	regsvr32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2924	DeviceSelector.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1760	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1760	AUDIODG.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 3932	2924	DeviceSelector.exe	73
PID 2924 wrote to memory of 3932	2924	DeviceSelector.exe	73

C:\Users\Admin\AppData\Local\Temp\DeviceSelector.exe
"C:\Users\Admin\AppData\Local\Temp\DeviceSelector.exe"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\System32\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\EqualizerAPO.dll"
  2⤵
  - Modifies registry class
  PID:3932

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x3dc
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1760

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

Replay Monitor

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Downloads

memory/2924-1-0x0000020AA0410000-0x0000020AA0420000-memory.dmp

Filesize
64KB

Download
memory/2924-0-0x00007FFD783A0000-0x00007FFD789CE000-memory.dmp

Filesize
6.2MB

Download