b1fd0e9d75588f9c6bdc3adb67699d212c8bc21827553c0e91ef0a2a57fd353f

Analysis

max time kernel
93s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 13:49

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General

Target

ie/RichMediaViewV1release235.dll
Size

85KB
MD5

69e8031c107b6575ca910f3c8941493d
SHA1

93a0f83e5f2603d90866c2ffdd23a12bd6edb66e
SHA256

82122e33763b17118a49305e185b3aad91d6e2f4fbe149817400f341a1c5153e
SHA512

3ca4591a33c8a3886ab266d2877fc36d034da036570a4038763f5a0b117acb1cdeabc8f9955c949a4ca6f08c6eb072f235c4dad3398a3211a8c909ad01cd736a
SSDEEP

1536:kkf9Csc+EE7Msd5N60GlVk8jkrw1fnqLhPLlQ/jFtBZ:n9++EEwsJ6FlV1fnma/jF9

Score

6^/10

adware discovery stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\NoExplorer = "1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\ = "RichMediaViewV1release235"	regsvr32.exe

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 34 IoCs

Processes:

regsvr32.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\TypeLib\ = "{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\ = "RichMediaViewV1release235"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\TypeLib\ = "{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\ = "IRichMediaViewV1release235BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release235.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\ = "RichMediaViewV1release235Lib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{F44B90C7-139F-4FDC-AF3F-E1469EA1A795}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release235.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\ = "IRichMediaViewV1release235BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{dc8b29f4-57d2-416a-ade7-da4c518a53e4}\TypeLib\ = "{f44b90c7-139f-4fdc-af3f-e1469ea1a795}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{23F81578-9ED3-4E9B-A3AD-AFF51B6F541C}\TypeLib\Version = "1.1"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	Process	procid_target
PID 1908 wrote to memory of 2208	1908	regsvr32.exe	82
PID 1908 wrote to memory of 2208	1908	regsvr32.exe	82
PID 1908 wrote to memory of 2208	1908	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release235.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release235.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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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