ab302c5c241aa7fee3d6fcce7dc5cb71ee1a0588788a2892f251f37b1081233d

Analysis

max time kernel
144s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 13:07

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General

Target

ie/RichMediaViewV1release6147.dll
Size

85KB
MD5

ca770865b7b0d00aa674820e283c29ad
SHA1

a3dae6bec6e4bc5aef66b1a7644fddf4ec9ff749
SHA256

aedac8a7fb43ac8dcd72a4ea54fa5d4061117ed809be2e7c01577944c4fbf047
SHA512

1e744a3ea7d1153ca31d82844efcabbb820b8844407da7e62df212160b7d9f0d78158dbdd6b32cd615ba94dcc5ff0ac354c7b5bba53642be9f3852364abb9f1f
SSDEEP

1536:bhMWCsgyMIwP/t6hp1ZcTkrCuHCTfLlQ3fe+aS:CWKyMIwP16hp11Hga3fe+H

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\{82d90963-98aa-4afd-9991-0b34959f9c07}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{82d90963-98aa-4afd-9991-0b34959f9c07}\ = "RichMediaViewV1release6147"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{82d90963-98aa-4afd-9991-0b34959f9c07}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release6147.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\TypeLib\ = "{B964A6ED-3EA1-4655-B4C5-88751105180D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\ = "IRichMediaViewV1release6147BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\Version\ = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\ = "RichMediaViewV1release6147Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release6147.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\ = "RichMediaViewV1release6147"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\TypeLib\ = "{b964a6ed-3ea1-4655-b4c5-88751105180d}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\TypeLib\ = "{B964A6ED-3EA1-4655-B4C5-88751105180D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82d90963-98aa-4afd-9991-0b34959f9c07}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B964A6ED-3EA1-4655-B4C5-88751105180D}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\ = "IRichMediaViewV1release6147BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{934AEB8A-FFB2-49BE-9D70-1271F155B454}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4888 wrote to memory of 4312	4888	regsvr32.exe	84
PID 4888 wrote to memory of 4312	4888	regsvr32.exe	84
PID 4888 wrote to memory of 4312	4888	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release6147.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release6147.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4312

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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