dec626dbf7e93ebbd2fcef1f2872bf57ec4239266b0a4bf80893331331b153b7

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 04:26

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General

Target

ie/RichMediaViewV1release992.dll
Size

85KB
MD5

0ce314e39f0773a4e53608c714f1e3dc
SHA1

d2364d4c18f4f602b3724a1feb48aa4c22a2c645
SHA256

c8a738cbbefdb3ca6a7e6ce090eb29f225f76071ec3814c61315211efc8fb43d
SHA512

55b8412c0096c76ba3bdd968cccaf10c5a43e35182056d819857d866322a552e71706bfa05d2a2d8e640d8ea81bea37ff82342a7be7d1b6ddecf88377e19ce11
SSDEEP

1536:Ikf9Csc+EE7Msd5N60GlVk8jkrw25nqLhPLlQ2bj9BZ:79++EEwsJ6FlV25nma2bjN

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{cf85be89-c5b9-4865-8d94-b91652217fd8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{cf85be89-c5b9-4865-8d94-b91652217fd8}\ = "RichMediaViewV1release992"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{cf85be89-c5b9-4865-8d94-b91652217fd8}\NoExplorer = "1"	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

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

Modifies registry class 34 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\ = "RichMediaViewV1release992Lib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release992.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\TypeLib\ = "{8edf8eeb-c536-4d98-b12c-569db604c401}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\ = "RichMediaViewV1release992"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\ = "IRichMediaViewV1release992BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\TypeLib\ = "{8EDF8EEB-C536-4D98-B12C-569DB604C401}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release992.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cf85be89-c5b9-4865-8d94-b91652217fd8}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8EDF8EEB-C536-4D98-B12C-569DB604C401}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\ = "IRichMediaViewV1release992BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F39AA398-50BB-4380-A862-9AF7D3C853D8}\TypeLib\ = "{8EDF8EEB-C536-4D98-B12C-569DB604C401}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4868 wrote to memory of 5052	4868	regsvr32.exe	83
PID 4868 wrote to memory of 5052	4868	regsvr32.exe	83
PID 4868 wrote to memory of 5052	4868	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release992.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4868
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release992.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:5052

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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