Overview
overview
7Static
static
3VirusShare...4e.exe
windows7-x64
7VirusShare...4e.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/...116.js
windows7-x64
1ff/chrome/...116.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/RichMed...16.dll
windows7-x64
6ie/RichMed...16.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
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
04/02/2024, 16:23
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_ef628936d86c881711b36ed9f2fe244e.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
VirusShare_ef628936d86c881711b36ed9f2fe244e.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
ffRichMediaViewV1release116chaction.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
ffRichMediaViewV1release116chaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffRichMediaViewV1release116.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffRichMediaViewV1release116.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffRichMediaViewV1release116ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffRichMediaViewV1release116ffaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
ie/RichMediaViewV1release116.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/RichMediaViewV1release116.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
win7-20231215-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
General
-
Target
VirusShare_ef628936d86c881711b36ed9f2fe244e.exe
-
Size
657KB
-
MD5
ef628936d86c881711b36ed9f2fe244e
-
SHA1
0ee27bfdc1c657606e247b5381ed2ececf48b763
-
SHA256
208d2d73481c89d5d3f2a83835ba6f64d3afe07b0604fc339a7e90ad596ae9ac
-
SHA512
aaacb435de31bbf4ca8954974c40f400f247e874a4fdc29ae7e3ebe48f245b229c03cbf11d543c937a5d734207ed9f9426db502836e6cdbfcb2ba8f8717c1118
-
SSDEEP
12288:Zp6v0xwNG4GQTq4OaQQTYJ8eP4/L5uO7D3f5Beq4kaJQTgJ8ePB/t5uO7SU26BBY:Zp6SqG4GQm4OaHYJ8eP4D5uOHBBD4kao
Malware Config
Signatures
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Loads dropped DLL 2 IoCs
pid Process 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 1744 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 Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{63504b83-0450-4d13-87af-623af1ef426c}\NoExplorer = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{63504b83-0450-4d13-87af-623af1ef426c} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{63504b83-0450-4d13-87af-623af1ef426c}\ = "RichMediaViewV1release116" regsvr32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI VirusShare_ef628936d86c881711b36ed9f2fe244e.exe -
Drops file in Program Files directory 22 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ch\RichMediaViewV1release116.crx VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\ffRichMediaViewV1release116.js VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\ffRichMediaViewV1release116.js VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\ffRichMediaViewV1release116ffaction.js VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\icons\default\RichMediaViewV1release116_32.png VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ch\RichMediaViewV1release116.crx VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\install.rdf VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\overlay.xul VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome.manifest VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\install.rdf VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\icons\Thumbs.db VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\icons\Thumbs.db VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\icons\default VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\icons\default\RichMediaViewV1release116_32.png VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome.manifest VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\ffRichMediaViewV1release116ffaction.js VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\overlay.xul VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File opened for modification C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ff\chrome\content\icons VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\uninstall.exe VirusShare_ef628936d86c881711b36ed9f2fe244e.exe File created C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ie\RichMediaViewV1release116.dll VirusShare_ef628936d86c881711b36ed9f2fe244e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Approved Extensions VirusShare_ef628936d86c881711b36ed9f2fe244e.exe Set value (data) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Approved Extensions\{63504b83-0450-4d13-87af-623af1ef426c} = 51667a6c4c1d3b1b9356447860517d0593a6247af5ac0171 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe -
Modifies registry class 36 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\TypeLib\ = "{dbdd9db8-8f69-4bb4-bde7-c529f1e1b10d}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\0\win32\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release116\\ie\\RichMediaViewV1release116.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c} VirusShare_ef628936d86c881711b36ed9f2fe244e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\TypeLib\ = "{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\HELPDIR\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release116\\ie" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\Version regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\Version\ = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\ = "IRichMediaViewV1release116BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\ = "Rich Media View" VirusShare_ef628936d86c881711b36ed9f2fe244e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\InprocServer32\ = "C:\\Program Files (x86)\\RichMediaViewV1\\RichMediaViewV1release116\\ie\\RichMediaViewV1release116.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\TypeLib\ = "{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\ = "IRichMediaViewV1release116BHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A4E926A9-6721-4707-BCF0-62CD489E3765}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63504b83-0450-4d13-87af-623af1ef426c}\ = "RichMediaViewV1release116" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DBDD9DB8-8F69-4BB4-BDE7-C529F1E1B10D}\1.1\ = "RichMediaViewV1release116Lib" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 1744 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 29 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30 PID 1972 wrote to memory of 2648 1972 VirusShare_ef628936d86c881711b36ed9f2fe244e.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\VirusShare_ef628936d86c881711b36ed9f2fe244e.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_ef628936d86c881711b36ed9f2fe244e.exe"1⤵
- 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:1972 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release116\ie\RichMediaViewV1release116.dll" /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1744
-
-
C:\Windows\SysWOW64\gpupdate.exe"C:\Windows\System32\gpupdate.exe" /force2⤵PID:2648
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
85KB
MD5edda7b7b239ba2b1f370145ee2defe4e
SHA166d60c54bbdaa26be11c3cd2cb7f0d7c9bbbb31f
SHA256c1eb71dae33b855f250ce059f4c34e29b48f4e9580bf40a681c02d68133767e5
SHA5127ed55891333448bbe5dc5bbf791534e6b6b47123c9bdebdb04463befed24853ddfad2980f551986635c89f24f9d9888847441f3c1aa8a1950d535d747017a7b4
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Filesize
567KB
MD5450753ad96785a240a39deccab3af0d0
SHA121c544064d2ffa6444508268ce258a330d459fc5
SHA2561c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3
SHA512c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab