435e26dc2571c48f92f6ea75b025f24a279c8a86b721f1e48434a6df412ba7a7

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 06:57

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General

Target

ie/MediaWatchV1home3882.dll
Size

85KB
MD5

d121be4ee5b461f93720042b9804ee2d
SHA1

4a2c2071520cb7ba80a4977b1fe5d21e6cc5dd33
SHA256

fc12e6330ef234709ea64fee46906f1973c62a6030aaef73661935f37eec1baa
SHA512

55c03190fe834676d4b5df8e832a9f7176b8603848227206958b00a2ea7721f146f2862cef6dc6aae504860cfe84559a5a4ea39d4e774fbae70b45e801dc0242
SSDEEP

1536:p8/1CsEmka04RhRtahrOb8DkhMkHA9glQYFdZ:i12mka0ElahrOQkguaYFd

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\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\ = "MediaWatchV1home3882"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\ = "MediaWatchV1home3882Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home3882.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home3882.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\TypeLib\ = "{3C0D755D-75E0-4692-B5E9-C736375FFE23}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\ = "IMediaWatchV1home3882BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\ = "MediaWatchV1home3882"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\ = "IMediaWatchV1home3882BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{38cfe8c2-7515-46bb-b3b5-953b95e0f11c}\TypeLib\ = "{3c0d755d-75e0-4692-b5e9-c736375ffe23}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3C0D755D-75E0-4692-B5E9-C736375FFE23}\1.1\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\TypeLib\ = "{3C0D755D-75E0-4692-B5E9-C736375FFE23}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF91FE68-E361-4817-BAFB-4B4A41F93AFA}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30
PID 1788 wrote to memory of 2100	1788	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home3882.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home3882.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2100

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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Downloads