Overview
overview
7Static
static
3VirusShare...54.exe
windows7-x64
7VirusShare...54.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3ffMediaWat...ion.js
windows7-x64
1ffMediaWat...ion.js
windows10-2004-x64
1ff/chrome/...812.js
windows7-x64
1ff/chrome/...812.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/MediaWa...12.dll
windows7-x64
6ie/MediaWa...12.dll
windows10-2004-x64
6uninstall.exe
windows7-x64
7uninstall.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3Analysis
- max time kernel
143s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
04/02/2024, 12:17
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_f4c8e921387a871d2c8102ee353dc354.exe
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral2
Sample
VirusShare_f4c8e921387a871d2c8102ee353dc354.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
ffMediaWatchV1home3812chaction.js
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral6
Sample
ffMediaWatchV1home3812chaction.js
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
ff/chrome/content/ffMediaWatchV1home3812.js
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral8
Sample
ff/chrome/content/ffMediaWatchV1home3812.js
Resource
win10v2004-20231222-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
ff/chrome/content/ffMediaWatchV1home3812ffaction.js
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral10
Sample
ff/chrome/content/ffMediaWatchV1home3812ffaction.js
Resource
win10v2004-20231222-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
ie/MediaWatchV1home3812.dll
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral12
Sample
ie/MediaWatchV1home3812.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
uninstall.exe
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral14
Sample
uninstall.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
General
- Target ie/MediaWatchV1home3812.dll
- Size 85KB
- Sample240204-pf8scsbcdm
- SHA256 7f9be0ab52e1a84fe0a8b704730500e2db0266553df5a2c68c571d21cd48e764
- MD5 dd2297881e37afedebb422552f1ebe45
- SHA1 c58de5a5e43bc8adb470a39881bdc48ec147765c
- SHA512 841d0c2953b8ca23563c5c06fdbad9cc71715bf8fa78162d17b7715ca26f2b47784707dbf02fafae62a5bd9a9638e474723443610cd492aa294f7e1241f22e42
- SSDEEP 1536:n8/1CsEmka04RhRtahrOb8DkhR6HA9glQf/Rh:g12mka0ElahrOF6guaf/R
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b98741af-fc9e-4899-8b7b-4c70f6d865a1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\ = "MediaWatchV1home3812" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\NoExplorer = "1" regsvr32.exe - Modifies registry class 34 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\TypeLib\ = "{3500f94e-dcf6-4a7d-b581-c1c6c12a14d1}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home3812.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\MediaWatchV1home3812.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ = "IMediaWatchV1home3812BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\ = "MediaWatchV1home3812Lib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\ = "MediaWatchV1home3812" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\Version\ = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib\ = "{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ = "IMediaWatchV1home3812BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib\ = "{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib\Version = "1.1" regsvr32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3648 wrote to memory of 1504 3648 regsvr32.exe 84 PID 3648 wrote to memory of 1504 3648 regsvr32.exe 84 PID 3648 wrote to memory of 1504 3648 regsvr32.exe 84
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home3812.dll1⤵
- Suspicious use of WriteProcessMemory
PID:3648 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\ie\MediaWatchV1home3812.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1504
-