26ac1b09a3ad625ccb25946b2e13437215f7ef80a73281104d2a1be87a17c09a

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-11-2024 00:29

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General

Target

Filters/oggsplitter.dll
Size

288KB
MD5

6a2e7307957383073db316ebe553dd58
SHA1

44f4e1ba43c4f1b0f60b8830644e7feb2702069c
SHA256

ef5ac08baea89730508d48ce5c5cfe139be3eddb3ffc4247f356279dfd6aac46
SHA512

6d078a2cf3e7f698e768ae7509ac4814a191b464aea114d23f17601c0dea980ed59165b4520f9b366efc56e01222136e86743f3ab38ec763df927820d06f1139
SSDEEP

6144:Z+Ud0h2At6aqQFUuT+VEhB4xnUVVVucKpc:ZmBtJFUuSVvSxhKp

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

regsvr32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 21 IoCs

Processes:

regsvr32.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\FriendlyName = "Ogg Source"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\CLSID = "{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{D2855FA9-61A7-4DB0-B979-71F297C17A04}\0 = "0,4,,4F676753"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9FF48807-E133-40AA-826F-9B2959E5232D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Filters\\oggsplitter.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\ = "Ogg Source"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{9FF48807-E133-40AA-826F-9B2959E5232D}\FriendlyName = "Ogg Splitter"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{9FF48807-E133-40AA-826F-9B2959E5232D}\FilterData = 020000000100600002000000000000003070693300000000000000000100000000000000000000003074793300000000500000006000000031706933080000000000000000000000000000000000000083eb36e44f52ce119f530020af0ba77000000000000000000000000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{D2855FA9-61A7-4DB0-B979-71F297C17A04}\Source Filter = "{E436EBB5-524F-11CE-9F53-0020AF0BA770}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{9FF48807-E133-40AA-826F-9B2959E5232D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{9FF48807-E133-40AA-826F-9B2959E5232D}\CLSID = "{9FF48807-E133-40AA-826F-9B2959E5232D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9FF48807-E133-40AA-826F-9B2959E5232D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9FF48807-E133-40AA-826F-9B2959E5232D}\ = "Ogg Splitter"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Filters\\oggsplitter.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Media Type\{E436EB83-524F-11CE-9F53-0020AF0BA770}\{D2855FA9-61A7-4DB0-B979-71F297C17A04}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9FF48807-E133-40AA-826F-9B2959E5232D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9FF48807-E133-40AA-826F-9B2959E5232D}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6D3688CE-3E9D-42F4-92CA-8A11119D25CD}\FilterData = 02000000010060000000000000000000	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	Process	procid_target
PID 1060 wrote to memory of 2812	1060	regsvr32.exe	85
PID 1060 wrote to memory of 2812	1060	regsvr32.exe	85
PID 1060 wrote to memory of 2812	1060	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Filters\oggsplitter.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Filters\oggsplitter.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

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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