3f0d55cc76b37f8cad60406ad252b0b44c12017612f41004c0c04d2985eb1336

Analysis

max time kernel
95s
max time network
123s
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, 05:24

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General

Target

ie/MediaWatchV1home2381.dll
Size

85KB
MD5

9719204ac813cf91b88eb9b960591505
SHA1

33002ca5b49d0863f36ab629250e18b626e9a250
SHA256

07be6b1071564a869035dc03ad1010537cce3a1e21514f80671b143fb3bd0b5a
SHA512

7a626f5cf5e9349e2e283e0749bec697435cb30ec56ad280bc01599f64253970a57e42489f371b8800783be6d74c27aa13f0e606c00744213fd2db251cb755d8
SSDEEP

1536:28/1CsEmka04RhRtahrOb8DkhU7oHA9glQ3Pax:x12mka0ElahrOcogua3Pa

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\{f3bfa31a-b125-408e-a1c3-69117f10b13f}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\ = "MediaWatchV1home2381"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\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\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\ = "IMediaWatchV1home2381BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home2381.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\TypeLib\ = "{8ce0401f-2103-4499-a1de-9dab125febc8}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\ = "IMediaWatchV1home2381BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home2381.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\TypeLib\ = "{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}\1.1\ = "MediaWatchV1home2381Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\TypeLib\ = "{8CE0401F-2103-4499-A1DE-9DAB125FEBC8}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\ = "MediaWatchV1home2381"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{f3bfa31a-b125-408e-a1c3-69117f10b13f}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C9F59B8F-2638-48BD-AFF2-708765367CA1}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 3256	2036	regsvr32.exe	82
PID 2036 wrote to memory of 3256	2036	regsvr32.exe	82
PID 2036 wrote to memory of 3256	2036	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home2381.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home2381.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3256

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

Windows 7 deprecation

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