2a194c3d5a62b2ef02d04ddfe3b986bff84cd721645804b9e6a9fa16fd44ff1e

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 15:48

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General

Target
ie/RichMediaViewV1release4992.dll
Size 85KB
Sample240204-s8t2fsfebl
SHA256 303b8bb5c34ae7bc977177b734f6f845650d4cada97caaa9a02c2694e4e76d89
MD5 f88e12d8d5aff750bcd6e73d880bd098
SHA1 ea9fbe1abd46747b18a0b279c90a09131a5c7a43
SHA512 8bf3f2f6c5765a14d81d756d7317ba3311dcab3ac56af9d08027bf90fd783ed4cb77f229e7fd768f0528f49b80503dd72b3491e9c17686b45c8b617aa0243e84
SSDEEP 1536:ZhMWCsgyMIwP/t6hp1ZcTkrCBQCTfLlQkfsqS:wWKyMIwP16hp1aQgakfsX
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware 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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\ = "RichMediaViewV1release4992"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\TypeLib\ = "{88227B2B-8A91-4E6A-BFD8-CE156250057A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\ = "IRichMediaViewV1release4992BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release4992.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\TypeLib\ = "{88227b2b-8a91-4e6a-bfd8-ce156250057a}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\Version\ = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\ = "IRichMediaViewV1release4992BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release4992.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\TypeLib\ = "{88227B2B-8A91-4E6A-BFD8-CE156250057A}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\ = "RichMediaViewV1release4992"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{dc62a19c-12ce-4a91-9ac4-dc3cf99c6ebd}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\ = "RichMediaViewV1release4992Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{88227B2B-8A91-4E6A-BFD8-CE156250057A}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02F3D1AA-7371-4694-A371-1D89F2F2BB33}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28
PID 2372 wrote to memory of 2544	2372	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release4992.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release4992.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2544

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

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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