8738a94ae5290d577f3aa700e918239a4bcdbe91d41d201434dc93620617997b

Analysis

max time kernel
122s
max time network
129s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
02-05-2024 23:08

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General

Target

Browser/AccessibleMarshal.dll
Size

25KB
MD5

d236cd8d7e54b848ab2def0c607a0068
SHA1

fc01448a3b099976bdd4f1259372d9b737b69fd8
SHA256

2cfc7d5e05e94c7e60485937d7e5fe9d6d93f74750cb760ff4b6767666309398
SHA512

4404833a7005333f263543faad894f6a38e027b70fde57fc58d4d00efef04d03bab7eab12fbd787f46dc00f9996801e359e000884eccbfd15ac83e054390153a
SSDEEP

384:RrUrKdJpDPepeEOGfc54yEI9M88JjUycDieoI:yEpSpeEOGfKEZJjgDB

Score

7^/10

persistence

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Browser\\AccessibleMarshal.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe

Modifies registry class 25 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\ = "ISimpleDOMNode"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Browser\\AccessibleMarshal.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\ProxyStubClsid32\ = "{1814CEEB-49E2-407F-AF99-FA755A7D2607}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4E747BE5-2052-4265-8AF0-8ECAD7AAD1C0}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\NumMethods\ = "18"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4E747BE5-2052-4265-8AF0-8ECAD7AAD1C0}\ProxyStubClsid32\ = "{1814CEEB-49E2-407F-AF99-FA755A7D2607}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}\NumMethods\ = "9"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1814CEEB-49E2-407F-AF99-FA755A7D2607}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}\ = "ISimpleDOMDocument"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4E747BE5-2052-4265-8AF0-8ECAD7AAD1C0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4E747BE5-2052-4265-8AF0-8ECAD7AAD1C0}\ = "ISimpleDOMText"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4E747BE5-2052-4265-8AF0-8ECAD7AAD1C0}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1814CEEB-49E2-407F-AF99-FA755A7D2607}\ = "PSFactoryBuffer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0D68D6D0-D93D-4D08-A30D-F00DD1F45B24}\ProxyStubClsid32\ = "{1814CEEB-49E2-407F-AF99-FA755A7D2607}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4E747BE5-2052-4265-8AF0-8ECAD7AAD1C0}\NumMethods\ = "8"	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Browser\AccessibleMarshal.dll
1⤵
- Registers COM server for autorun
- Modifies registry class
PID:1844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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