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
121s - max time network
122s - 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
Behavioral task
behavioral2
Sample
VirusShare_f4c8e921387a871d2c8102ee353dc354.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
ffMediaWatchV1home3812chaction.js
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
ffMediaWatchV1home3812chaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffMediaWatchV1home3812.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffMediaWatchV1home3812.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffMediaWatchV1home3812ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffMediaWatchV1home3812ffaction.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
ie/MediaWatchV1home3812.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/MediaWatchV1home3812.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
uninstall.exe
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
uninstall.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
General
- Target VirusShare_f4c8e921387a871d2c8102ee353dc354.exe
- Size 634KB
- Sample240204-pf8scsbcdm
- SHA256 6f1d5f511bd10b770a34b5d2f54014a423d9a87fd8d52458610458e583fab20f
- MD5 f4c8e921387a871d2c8102ee353dc354
- SHA1 89ced0d772ae799eb165461b6059bdfe98faf3c0
- SHA512 5cbbe344e0be02e0900261931329c8aafca9a9c127111b30301588dc203119562b34293c0d30aa97c455516b4eaba92a232ac3db84644adfa6d50a9b0072896c
- SSDEEP 12288:XGMWgEG4GjeZHkwuPikQ7lKH5p5H9x1keZHkwuliXQTlKB5pixyiR+:XGeEG4GjeZEXi37l6Br1keZEdigTl26U
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation VirusShare_f4c8e921387a871d2c8102ee353dc354.exe - Loads dropped DLL 2 IoCs
pid Process 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 3352 regsvr32.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 - Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Windows\System32\GroupPolicy VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini VirusShare_f4c8e921387a871d2c8102ee353dc354.exe - Drops file in Program Files directory 22 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\ffMediaWatchV1home3812ffaction.js VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\overlay.xul VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\overlay.xul VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\icons VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\icons\Thumbs.db VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\icons\default\MediaWatchV1home3812_32.png VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\uninstall.exe VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome.manifest VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\install.rdf VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\ffMediaWatchV1home3812.js VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ch\MediaWatchV1home3812.crx VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\ffMediaWatchV1home3812.js VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\icons\Thumbs.db VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\icons\default\MediaWatchV1home3812_32.png VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ie\MediaWatchV1home3812.dll VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ch\MediaWatchV1home3812.crx VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome.manifest VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\install.rdf VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\ffMediaWatchV1home3812ffaction.js VirusShare_f4c8e921387a871d2c8102ee353dc354.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ff\chrome\content\icons\default VirusShare_f4c8e921387a871d2c8102ee353dc354.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\Approved Extensions VirusShare_f4c8e921387a871d2c8102ee353dc354.exe Set value (data) \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Approved Extensions\{b98741af-fc9e-4899-8b7b-4c70f6d865a1} = 51667a6c4c1d3b1bbf5e91a9aeaff10696740a30f49828b4 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe - Modifies registry class 36 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1} VirusShare_f4c8e921387a871d2c8102ee353dc354.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\ = "MediaWatchV1home3812" 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\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693} 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\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\0\win32\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home3812\\ie\\MediaWatchV1home3812.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32 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\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1} 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\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\ = "Media Watch" VirusShare_f4c8e921387a871d2c8102ee353dc354.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\InprocServer32\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home3812\\ie\\MediaWatchV1home3812.dll" 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\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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\TypeLib\ = "{3500f94e-dcf6-4a7d-b581-c1c6c12a14d1}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1\HELPDIR\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home3812\\ie" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{b98741af-fc9e-4899-8b7b-4c70f6d865a1}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ = "IMediaWatchV1home3812BHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C3B221D3-4A75-45E7-A8F0-C55712AB9693}\TypeLib 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\TypeLib\{3500F94E-DCF6-4A7D-B581-C1C6C12A14D1}\1.1 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\0\win32 regsvr32.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3944 wrote to memory of 3352 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 85 PID 3944 wrote to memory of 3352 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 85 PID 3944 wrote to memory of 3352 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 85 PID 3944 wrote to memory of 1892 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 88 PID 3944 wrote to memory of 1892 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 88 PID 3944 wrote to memory of 1892 3944 VirusShare_f4c8e921387a871d2c8102ee353dc354.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\VirusShare_f4c8e921387a871d2c8102ee353dc354.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_f4c8e921387a871d2c8102ee353dc354.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3944 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ie\MediaWatchV1home3812.dll" /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3352
-
-
C:\Windows\SysWOW64\gpupdate.exe"C:\Windows\System32\gpupdate.exe" /force2⤵PID:1892
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:4716
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:3164
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3812\ie\MediaWatchV1home3812.dll
- Size 85KB
- SHA256 7f9be0ab52e1a84fe0a8b704730500e2db0266553df5a2c68c571d21cd48e764
- MD5 dd2297881e37afedebb422552f1ebe45
- SHA1 c58de5a5e43bc8adb470a39881bdc48ec147765c
- SHA512 841d0c2953b8ca23563c5c06fdbad9cc71715bf8fa78162d17b7715ca26f2b47784707dbf02fafae62a5bd9a9638e474723443610cd492aa294f7e1241f22e42
- SSDEEP 1536:n8/1CsEmka04RhRtahrOb8DkhR6HA9glQf/Rh:g12mka0ElahrOF6guaf/R
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsz3912.tmp\aminsis.dll
- Size 559KB
- SHA256 b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539
- MD5 51ba1095f0ae45a2d444bea506cb9ad4
- SHA1 038a5d53d055a6d440bd2c8864c2f51db206c5e5
- SHA512 f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361
- SSDEEP 12288:kbdmSvBuSrDWoN/8Z+iZz2ULoygI/htZw3EKwcxi0T8NGAmN:bSvBuSG7+iZz2ULoyXZzw3E2tT8UAmN
- MD5 SHA1 SHA512 SSDEEP