fff735b78e50eaabe5f374ce6f5bc37929af6a132a8b54f84fce9a2a41d45067

Analysis

max time kernel
131s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 07:38

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General

Target

ie/MediaWatchV1home72.dll
Size

85KB
MD5

0e402c1ce3cfd7a81a2f066229008a72
SHA1

11059f2fdf098c88f978f9451dbb44c7fefdd247
SHA256

6e0f1037510b868f238ea281ad09f4597733118f3d7e3c327a36b9bf4f5191e4
SHA512

270439ee44eab60fd83c92cc07dce4e1999392f6dec46ba3465fd2467ca54ac3f9f6deffaa78ba4fe095eb2ac600b0cfe6380d11fe0a7cd7b40e691d30c4efe1
SSDEEP

1536:dy/YCsh1Eb2VGAtK7gjzAcTkWGFBXbxlQDpXO:EYT1Eb2VGOK76z2FBrxaDpX

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\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\ = "MediaWatchV1home72"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\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\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\ = "MediaWatchV1home72Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\TypeLib\ = "{a5240e28-2748-4003-86b5-8152c87ab5cd}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\TypeLib\ = "{A5240E28-2748-4003-86B5-8152C87AB5CD}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\ = "IMediaWatchV1home72BHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\TypeLib\Version = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\Version\ = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\ = "MediaWatchV1home72"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home72.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2b1576cd-b9d5-4c61-a177-5bf0d1053997}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\ = "IMediaWatchV1home72BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\TypeLib\ = "{A5240E28-2748-4003-86B5-8152C87AB5CD}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A58ABAB5-A0DF-4BF0-B583-A322180FEDE8}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home72.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A5240E28-2748-4003-86B5-8152C87AB5CD}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 2244	1652	regsvr32.exe	89
PID 1652 wrote to memory of 2244	1652	regsvr32.exe	89
PID 1652 wrote to memory of 2244	1652	regsvr32.exe	89

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home72.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home72.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2244

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4324,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=3880 /prefetch:8
1⤵
PID:672

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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