fbdac75d7e1eeff6598b4498f8395f3adac68c343f1417073527edb6c575e900

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 13:13

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General

Target
ie/RichMediaViewV1release373.dll
Size 85KB
Sample240204-qf6tfaade2
SHA256 2b0d829364f051a60d45ced2d6a78b7805469e4dea657c9364fde8164d91b499
MD5 8a8ad890a135a3418283374dfbeabcf8
SHA1 7ad3d85e822a56fff035181d7781345df8b314cd
SHA512 daa5713ff486c16b17ee7e714f9955bc0b6bc43bed56f71b869fc3ed4d194e9409ea7e8e6f9e698c0a8b31c0900e6f8778ceeecf20d05674057c4ab1b0d34374
SSDEEP 1536:Xkf9Csc+EE7Msd5N60GlVk8jkrwvNnqLhPLlQgVDdBZ:49++EEwsJ6FlVvNnmagVDt
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\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\ = "RichMediaViewV1release373"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\ = "RichMediaViewV1release373Lib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release373.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\ = "IRichMediaViewV1release373BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\TypeLib\ = "{EA997167-0910-4B47-AA25-5EFDFB118FE0}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\ = "RichMediaViewV1release373"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\TypeLib\ = "{EA997167-0910-4B47-AA25-5EFDFB118FE0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release373.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EA997167-0910-4B47-AA25-5EFDFB118FE0}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\ = "IRichMediaViewV1release373BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\TypeLib\ = "{ea997167-0910-4b47-aa25-5efdfb118fe0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4d49b4b1-fc12-442e-b640-fc88a2b7bf46}\Version\ = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{25E4CB0F-88A4-4D67-B5FA-18FB61DB2424}\TypeLib\Version = "1.1"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28
PID 2044 wrote to memory of 2328	2044	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release373.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release373.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2328

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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