e9a16bf27f5e2b25e034648a8d0e0b50afc3fa2060caa273ce941aed18b4653d

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-10-2024 00:23

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General

Target

ie/MediaWatchV1home4594.dll
Size

85KB
MD5

35efde5cafaf74969b9595d9195c5c36
SHA1

c46072e9236726b3557875b5ec11555595e2acbc
SHA256

a44206501dfe1efbd357ca6c0b837719d61b8aadda022bcafcdb2ad7a74fa50c
SHA512

c0efbfe02d006338fff2cbb8f41a2457f4bab14934ca75a8e78fb6a624e35cfc8ac4a7ad478189b5e91b3c1344825cf4d76dbc86f0f8c951d0f36ae8cabc8eab
SSDEEP

1536:AMflScQkG04RvxtakrOb8Dkx4BHgNglQaeF:rlikG0EbakrOIBA+aaeF

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\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\ = "MediaWatchV1home4594"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\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\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home4594.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\TypeLib\ = "{007a21e2-88a6-4cf2-b8de-d7b43b6cd763}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\ = "IMediaWatchV1home4594BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\ = "MediaWatchV1home4594"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\TypeLib\ = "{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\TypeLib\ = "{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\ = "MediaWatchV1home4594Lib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\ = "IMediaWatchV1home4594BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EA9B8890-BA94-4A9D-AF47-D8A25C172077}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3c735d0f-71ca-42c9-8aba-8e3fb1e9d954}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{007A21E2-88A6-4CF2-B8DE-D7B43B6CD763}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home4594.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 4540	5088	regsvr32.exe	82
PID 5088 wrote to memory of 4540	5088	regsvr32.exe	82
PID 5088 wrote to memory of 4540	5088	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home4594.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home4594.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4540

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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