Overview
overview
7Static
static
3VirusShare...23.exe
windows7-x64
7VirusShare...23.exe
windows10-2004-x64
7$PLUGINSDI...is.dll
windows7-x64
3$PLUGINSDI...is.dll
windows10-2004-x64
3ffRichMedi...ion.js
windows7-x64
1ffRichMedi...ion.js
windows10-2004-x64
1ff/chrome/...622.js
windows7-x64
1ff/chrome/...622.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/RichMed...22.dll
windows7-x64
6ie/RichMed...22.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
151s - max time network
156s - 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, 12:06
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_924dd20216cffc2171b6af76305f5723.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
VirusShare_924dd20216cffc2171b6af76305f5723.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
ffRichMediaViewV1release4622chaction.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
ffRichMediaViewV1release4622chaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffRichMediaViewV1release4622.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffRichMediaViewV1release4622.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffRichMediaViewV1release4622ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffRichMediaViewV1release4622ffaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
ie/RichMediaViewV1release4622.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/RichMediaViewV1release4622.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
uninstall.exe
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
uninstall.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231222-en
General
- Target VirusShare_924dd20216cffc2171b6af76305f5723.exe
- Size 657KB
- Sample240204-n97aysbaem
- SHA256 fc4cd431f5e66bee77c0ca87d2825e1386fe58e8fd236dd67b1a43e1ffc3a353
- MD5 924dd20216cffc2171b6af76305f5723
- SHA1 91051ba9099f967242e02cc6a03b74f626c9b35e
- SHA512 85ffa23206ee49451322d0c9b2048d98c941bc88440cf11f92ad9f916410b4d2237985c646b9dec7c59a17786a1cee54999243fecffce62586c5932c112788a2
- SSDEEP 12288:UGUbcG4GQTq4OaQQTYJ8eP4/L5uO7D3f5B5q4yaPQTMJ8ePB/x5uO7jU26ABz:UGEcG4GQm4OaHYJ8eP4D5uOHBB84yau4
- 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation VirusShare_924dd20216cffc2171b6af76305f5723.exe - Loads dropped DLL 2 IoCs
pid Process 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 4328 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\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\ = "RichMediaViewV1release4622" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\NoExplorer = "1" regsvr32.exe - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Windows\System32\GroupPolicy VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol VirusShare_924dd20216cffc2171b6af76305f5723.exe - Drops file in Program Files directory 22 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\icons\default\RichMediaViewV1release4622_32.png VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ie\RichMediaViewV1release4622.dll VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\install.rdf VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\icons\default VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\overlay.xul VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\icons\Thumbs.db VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\uninstall.exe VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ch\RichMediaViewV1release4622.crx VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\ffRichMediaViewV1release4622.js VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\icons\Thumbs.db VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\icons\default\RichMediaViewV1release4622_32.png VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome.manifest VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\ffRichMediaViewV1release4622ffaction.js VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\icons VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\ffRichMediaViewV1release4622.js VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\ffRichMediaViewV1release4622ffaction.js VirusShare_924dd20216cffc2171b6af76305f5723.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome\content\overlay.xul VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ch\RichMediaViewV1release4622.crx VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\chrome.manifest VirusShare_924dd20216cffc2171b6af76305f5723.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ff\install.rdf VirusShare_924dd20216cffc2171b6af76305f5723.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Approved Extensions VirusShare_924dd20216cffc2171b6af76305f5723.exe Set value (data) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Approved Extensions\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2} = 51667a6c4c1d3b1b68c41551847bb908b9c58c6b2913e8e6 VirusShare_924dd20216cffc2171b6af76305f5723.exe - Modifies registry class 36 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\TypeLib\ = "{18686b8c-9418-4acd-af37-2369b5346da3}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\TypeLib\ = "{18686B8C-9418-4ACD-AF37-2369B5346DA3}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\0\win32\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release4622\\ie\\RichMediaViewV1release4622.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\InprocServer32\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release4622\\ie\\RichMediaViewV1release4622.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2} VirusShare_924dd20216cffc2171b6af76305f5723.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\ = "Rich Media View" VirusShare_924dd20216cffc2171b6af76305f5723.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\HELPDIR\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release4622\\ie" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\ = "IRichMediaViewV1release4622BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\TypeLib\ = "{18686B8C-9418-4ACD-AF37-2369B5346DA3}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\ = "RichMediaViewV1release4622" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\ = "RichMediaViewV1release4622Lib" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{18686B8C-9418-4ACD-AF37-2369B5346DA3}\1.1\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4f07d978-29b0-44df-a3c6-ce2b2d53a8f2}\Version\ = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\ = "IRichMediaViewV1release4622BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9E276D10-2BFC-4484-A599-27940237EA1D}\TypeLib regsvr32.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1232 wrote to memory of 4328 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 85 PID 1232 wrote to memory of 4328 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 85 PID 1232 wrote to memory of 4328 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 85 PID 1232 wrote to memory of 2736 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 89 PID 1232 wrote to memory of 2736 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 89 PID 1232 wrote to memory of 2736 1232 VirusShare_924dd20216cffc2171b6af76305f5723.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\VirusShare_924dd20216cffc2171b6af76305f5723.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_924dd20216cffc2171b6af76305f5723.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:1232 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ie\RichMediaViewV1release4622.dll" /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4328
-
-
C:\Windows\SysWOW64\gpupdate.exe"C:\Windows\System32\gpupdate.exe" /force2⤵PID:2736
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:2916
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:3208
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release4622\ie\RichMediaViewV1release4622.dll
- Size 85KB
- SHA256 350d8298f5ad4277864cf4e78c31432f29d4b2839847df1a3f6f0f940ad653f1
- MD5 25f32ed1c5cef84c3f75fdbb6d7fbe38
- SHA1 ed86a2e5b011f282e27b62526f978928905c7273
- SHA512 caa90c33982cb19d23528308f1ce4570c49de56f4a7a4bc7097d649bd249afde2deb78d1778cf8504401b4e8191c9e1821a0971e9f60d3254b27074e840fcf7c
- SSDEEP 1536:PRsmScYsswPVt6Ap1ZcTkLCTYCjfLlQuGKH:Wm6sswPn6Ap1kYwauGKH
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsu4477.tmp\aminsis.dll
- Size 567KB
- SHA256 1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3
- MD5 450753ad96785a240a39deccab3af0d0
- SHA1 21c544064d2ffa6444508268ce258a330d459fc5
- SHA512 c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab
- SSDEEP 12288:i/x6GnSkidh7NfMc4G1ppgH81vrKiuu+PUHOGcl5Sbl9B9GUdL:9GnSkWh4G1ppgH81vrBu3MHOGUKfGU
- MD5 SHA1 SHA512 SSDEEP