Overview
overview
7Static
static
3VirusShare...c0.exe
windows7-x64
7VirusShare...c0.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/...457.js
windows7-x64
1ff/chrome/...457.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/RichMed...57.dll
windows7-x64
6ie/RichMed...57.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
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max time kernel
153s -
max time network
162s -
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, 16:20
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
ffRichMediaViewV1release457chaction.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
ffRichMediaViewV1release457chaction.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffRichMediaViewV1release457.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffRichMediaViewV1release457.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffRichMediaViewV1release457ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffRichMediaViewV1release457ffaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
ie/RichMediaViewV1release457.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/RichMediaViewV1release457.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
win10v2004-20231222-en
General
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Target
VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe
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Size
657KB
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MD5
e7de1b49efca6226d4c1a727b8fb5dc0
-
SHA1
1e22c12c7cf3d2e8d761a92b575ff29ad10cc20c
-
SHA256
478d406e968f5a1f656cda098cb3b4b00877ffb6bec4a89ebd7f6b03ec517c75
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SHA512
826be6c2bbaf47733d091e6fd0451bd7c6d9d3f99f50512da805fa33df53dfdfb7d395cf72956fe81f5b4df599efe6ab9126cf7496970d8d3e69e3c89811d0d4
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SSDEEP
12288:5eU4zlI7MG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BGq4IalQTSJ8ePt/t5uO7EU26ql:5/4zlI7MG4GQm4OaHYJ8eP4D5uOHBBrJ
Malware Config
Signatures
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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_e7de1b49efca6226d4c1a727b8fb5dc0.exe -
Loads dropped DLL 2 IoCs
pid Process 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 1128 regsvr32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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\{a3f275c8-2d58-4edc-9720-e881900a1c8f} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\ = "RichMediaViewV1release457" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\NoExplorer = "1" regsvr32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe -
Drops file in Program Files directory 22 IoCs
description ioc Process File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ch\RichMediaViewV1release457.crx VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\install.rdf VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\ffRichMediaViewV1release457ffaction.js VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\ffRichMediaViewV1release457ffaction.js VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\icons\Thumbs.db VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\icons\default VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ie\RichMediaViewV1release457.dll VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\overlay.xul VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ch\RichMediaViewV1release457.crx VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\ffRichMediaViewV1release457.js VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\icons\default\RichMediaViewV1release457_32.png VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome.manifest VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome.manifest VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\install.rdf VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\ffRichMediaViewV1release457.js VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\overlay.xul VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\icons VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\icons\Thumbs.db VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ff\chrome\content\icons\default\RichMediaViewV1release457_32.png VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\uninstall.exe VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Approved Extensions VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe Set value (data) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Approved Extensions\{a3f275c8-2d58-4edc-9720-e881900a1c8f} = 51667a6c4c1d3b1bd868e0bd6c7fba028d23aac1944a5c9b VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe -
Modifies registry class 36 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\ = "RichMediaViewV1release457" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ = "IRichMediaViewV1release457BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ = "IRichMediaViewV1release457BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\ = "RichMediaViewV1release457Lib" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\ = "Rich Media View" VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f} VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\Version\ = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\InprocServer32\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release457\\ie\\RichMediaViewV1release457.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\0\win32\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release457\\ie\\RichMediaViewV1release457.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\ = "{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a3f275c8-2d58-4edc-9720-e881900a1c8f}\TypeLib\ = "{b686f91b-ea6a-4179-8ac3-fdd1ef7ccd36}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}\1.1\HELPDIR\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release457\\ie" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89}\TypeLib\ = "{B686F91B-EA6A-4179-8AC3-FDD1EF7CCD36}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9DB5BB10-DE6A-4B78-886D-C686E9998D89} regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3932 wrote to memory of 1128 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 85 PID 3932 wrote to memory of 1128 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 85 PID 3932 wrote to memory of 1128 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 85 PID 3932 wrote to memory of 1916 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 89 PID 3932 wrote to memory of 1916 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 89 PID 3932 wrote to memory of 1916 3932 VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_e7de1b49efca6226d4c1a727b8fb5dc0.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:3932 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release457\ie\RichMediaViewV1release457.dll" /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1128
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C:\Windows\SysWOW64\gpupdate.exe"C:\Windows\System32\gpupdate.exe" /force2⤵PID:1916
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1996
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:1480
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
85KB
MD5d11cb24ddd954e37dafec06d3e8dcc29
SHA11fcf4a681e85214060278e23424e4aa0cbf76133
SHA25662388ed1a1148b38b3199da8c363f15713c167ab7b4602c7720ddd730d893db4
SHA512ef9fd9e511c03dbb78640e43e8c241a273f482f2c9f4facfbb1251877c4675ddb277c2b7d5ea2bc4d157709e8420635dd2e9661cd82101ce39981c629b01ea74
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Filesize
567KB
MD5450753ad96785a240a39deccab3af0d0
SHA121c544064d2ffa6444508268ce258a330d459fc5
SHA2561c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3
SHA512c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab