Overview
overview
7Static
static
3VirusShare...3c.exe
windows7-x64
7VirusShare...3c.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/...176.js
windows7-x64
1ff/chrome/...176.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/MediaWa...76.dll
windows7-x64
6ie/MediaWa...76.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
148s - 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, 13:02
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
VirusShare_e8f35f3511618cf0d57d81d44e3d203c.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
ffMediaWatchV1home4176chaction.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
ffMediaWatchV1home4176chaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffMediaWatchV1home4176.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffMediaWatchV1home4176.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffMediaWatchV1home4176ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffMediaWatchV1home4176ffaction.js
Resource
win10v2004-20231222-en
Behavioral task
behavioral11
Sample
ie/MediaWatchV1home4176.dll
Resource
win7-20231129-en
Behavioral task
behavioral12
Sample
ie/MediaWatchV1home4176.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_e8f35f3511618cf0d57d81d44e3d203c.exe
- Size 634KB
- Sample240204-p98dpacdck
- SHA256 b45be767bfcf5d2f034029069499318ac9bb1e5481b711676029a48d55289f0c
- MD5 e8f35f3511618cf0d57d81d44e3d203c
- SHA1 03ef45d894934cb0dec4cd28de5dda2401d07472
- SHA512 a0092a1db39ce3189f33df5a6a8b644519969c103ba9444bb4401dafc261b39b5d7e4db4d82455a497f11e889b7490655988de68f58d305c3a00aed944f47a4d
- SSDEEP 12288:bkwIG4GjeZHkwuPikQ7lKH5p5H9x1KeZHkwu9itQplKd5pyxllfJ:bkwIG4GjeZEXi37l6Br1KeZE1iCplOqX
- 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_e8f35f3511618cf0d57d81d44e3d203c.exe - Loads dropped DLL 2 IoCs
pid Process 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 5072 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\{9bc81f1c-d38f-4866-b610-4ac11ddc1088} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\ = "MediaWatchV1home4176" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\NoExplorer = "1" regsvr32.exe - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe - Drops file in Program Files directory 22 IoCs
description ioc Process File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\icons\Thumbs.db VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\icons\Thumbs.db VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome.manifest VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\ffMediaWatchV1home4176ffaction.js VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\install.rdf VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\install.rdf VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\overlay.xul VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\overlay.xul VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ie\MediaWatchV1home4176.dll VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ch\MediaWatchV1home4176.crx VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome.manifest VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\uninstall.exe VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\ffMediaWatchV1home4176.js VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\icons VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\icons\default VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\icons\default\MediaWatchV1home4176_32.png VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\icons\default\MediaWatchV1home4176_32.png VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ch\MediaWatchV1home4176.crx VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\ffMediaWatchV1home4176.js VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ff\chrome\content\ffMediaWatchV1home4176ffaction.js VirusShare_e8f35f3511618cf0d57d81d44e3d203c.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_e8f35f3511618cf0d57d81d44e3d203c.exe Set value (data) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Approved Extensions\{9bc81f1c-d38f-4866-b610-4ac11ddc1088} = 51667a6c4c1d3b1b0c02da85bb810004ac130881199c509c VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe - Modifies registry class 36 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\TypeLib\ = "{1844055d-7083-41a3-81db-31e35cce3e3b}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\TypeLib\ = "{1844055D-7083-41A3-81DB-31E35CCE3E3B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\ = "IMediaWatchV1home4176BHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\ = "MediaWatchV1home4176Lib" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\HELPDIR\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home4176\\ie" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\ = "MediaWatchV1home4176" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\TypeLib\ = "{1844055D-7083-41A3-81DB-31E35CCE3E3B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\ = "IMediaWatchV1home4176BHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088} VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\ = "Media Watch" VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\InprocServer32\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home4176\\ie\\MediaWatchV1home4176.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{9bc81f1c-d38f-4866-b610-4ac11ddc1088}\Version\ = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1844055D-7083-41A3-81DB-31E35CCE3E3B}\1.1\0\win32\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home4176\\ie\\MediaWatchV1home4176.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{17010396-A19E-4E6B-BA65-331A22593845}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2116 wrote to memory of 5072 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 85 PID 2116 wrote to memory of 5072 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 85 PID 2116 wrote to memory of 5072 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 85 PID 2116 wrote to memory of 5100 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 88 PID 2116 wrote to memory of 5100 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 88 PID 2116 wrote to memory of 5100 2116 VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\VirusShare_e8f35f3511618cf0d57d81d44e3d203c.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_e8f35f3511618cf0d57d81d44e3d203c.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:2116 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ie\MediaWatchV1home4176.dll" /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:5072
-
-
C:\Windows\SysWOW64\gpupdate.exe"C:\Windows\System32\gpupdate.exe" /force2⤵PID:5100
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:1692
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1524
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4176\ie\MediaWatchV1home4176.dll
- Size 85KB
- SHA256 6e0c5a1a43686acbd5622bb18877fad75cbc63866b0070582e771f1aca9b439f
- MD5 ea98c9ab7326e558f2ae92bf642d0796
- SHA1 0e8afc35c37ef5e0de609398ffcf476935468be2
- SHA512 b412754b5d77f7620df0bdc66cfeeb114399505b4011e2c4eb7c4b195d1676ca7769768f745f8ce8354e2ccac41268ee1a5673c7129802eab38e2d3c14d615b7
- SSDEEP 1536:mMflScQkG04RfxtakrOb8DkxKRHgNglQOuW:RlikG0ELakrOaRA+aOuW
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsx652E.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