Overview
overview
7Static
static
3VirusShare...ff.exe
windows7-x64
7VirusShare...ff.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/...911.js
windows7-x64
1ff/chrome/...911.js
windows10-2004-x64
1ff/chrome/...ion.js
windows7-x64
1ff/chrome/...ion.js
windows10-2004-x64
1ie/MediaWa...11.dll
windows7-x64
6ie/MediaWa...11.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
138s - max time network
158s - 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, 16:07
Static task
static1
Behavioral task
behavioral1
Sample
VirusShare_99decf9be5148371ddeec546133eeeff.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
VirusShare_99decf9be5148371ddeec546133eeeff.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aminsis.dll
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
ffMediaWatchV1home911chaction.js
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
ffMediaWatchV1home911chaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
ff/chrome/content/ffMediaWatchV1home911.js
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
ff/chrome/content/ffMediaWatchV1home911.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral9
Sample
ff/chrome/content/ffMediaWatchV1home911ffaction.js
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
ff/chrome/content/ffMediaWatchV1home911ffaction.js
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
ie/MediaWatchV1home911.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
ie/MediaWatchV1home911.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
win7-20231215-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/aminsis.dll
Resource
win10v2004-20231215-en
General
- Target VirusShare_99decf9be5148371ddeec546133eeeff.exe
- Size 634KB
- Sample240204-tk599adge9
- SHA256 b43f0674c30b36431d60816c5bb61c637c4c4e88db4c7b21f03d825f57bbe568
- MD5 99decf9be5148371ddeec546133eeeff
- SHA1 4d42630104729dba5c7c79e7fd7b01e1a846355a
- SHA512 235ca49cc7ac1a0ee84a935139dc843988fa5f44416908414c48be50e1db3ffe871b6e8abbb43b82d36e3eae7e74827952d9cf78fb87dc009fd2b96ba92218ed
- SSDEEP 12288:zhsEopG4GjeZHkwuPikQ7lKH5p5H9x1jeZHkwu/iJQ5lKL5p6CsQzuPY6:zhsvG4GjeZEXi37l6Br1jeZE3ie5lYyh
- 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_99decf9be5148371ddeec546133eeeff.exe - Loads dropped DLL 2 IoCs
pid Process 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 2608 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\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\ = "MediaWatchV1home911" regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\NoExplorer = "1" regsvr32.exe - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI VirusShare_99decf9be5148371ddeec546133eeeff.exe - Drops file in Program Files directory 22 IoCs
description ioc Process File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ch\MediaWatchV1home911.crx VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\install.rdf VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\overlay.xul VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\overlay.xul VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\icons VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\icons\Thumbs.db VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\icons\default\MediaWatchV1home911_32.png VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ie\MediaWatchV1home911.dll VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome.manifest VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\ffMediaWatchV1home911.js VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\ffMediaWatchV1home911.js VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\icons\default\MediaWatchV1home911_32.png VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\install.rdf VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\ffMediaWatchV1home911ffaction.js VirusShare_99decf9be5148371ddeec546133eeeff.exe File created C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\uninstall.exe VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\icons\Thumbs.db VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\icons\default VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ch\MediaWatchV1home911.crx VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome.manifest VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content VirusShare_99decf9be5148371ddeec546133eeeff.exe File opened for modification C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ff\chrome\content\ffMediaWatchV1home911ffaction.js VirusShare_99decf9be5148371ddeec546133eeeff.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_99decf9be5148371ddeec546133eeeff.exe Set value (data) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Approved Extensions\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530} = 51667a6c4c1d3b1bebfa03f3487c4501be19af9c7f20d524 VirusShare_99decf9be5148371ddeec546133eeeff.exe - Modifies registry class 36 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\HELPDIR\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home911\\ie" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\TypeLib\Version = "1.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\ = "MediaWatchV1home911Lib" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\TypeLib\ = "{D67ED483-251C-4D04-838A-43B3F202323B}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\ = "Media Watch" VirusShare_99decf9be5148371ddeec546133eeeff.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\TypeLib\ = "{d67ed483-251c-4d04-838a-43b3f202323b}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\ = "IMediaWatchV1home911BHO" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\Version regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\TypeLib\Version = "1.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\TypeLib\ = "{D67ED483-251C-4D04-838A-43B3F202323B}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\ = "IMediaWatchV1home911BHO" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9313BDA3-482C-4715-A850-C2EDDEFEDE22}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\0\win32\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home911\\ie\\MediaWatchV1home911.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D67ED483-251C-4D04-838A-43B3F202323B}\1.1\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\ = "MediaWatchV1home911" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\InprocServer32\ = "C:\\Program Files (x86)\\MediaWatchV1\\MediaWatchV1home911\\ie\\MediaWatchV1home911.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530} VirusShare_99decf9be5148371ddeec546133eeeff.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ed11e7fb-2e7c-4d23-a41a-eddc7b609530}\Version\ = "1.1" regsvr32.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 228 wrote to memory of 2608 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 84 PID 228 wrote to memory of 2608 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 84 PID 228 wrote to memory of 2608 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 84 PID 228 wrote to memory of 2040 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 87 PID 228 wrote to memory of 2040 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 87 PID 228 wrote to memory of 2040 228 VirusShare_99decf9be5148371ddeec546133eeeff.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\VirusShare_99decf9be5148371ddeec546133eeeff.exe"C:\Users\Admin\AppData\Local\Temp\VirusShare_99decf9be5148371ddeec546133eeeff.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:228 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ie\MediaWatchV1home911.dll" /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2608
-
-
C:\Windows\SysWOW64\gpupdate.exe"C:\Windows\System32\gpupdate.exe" /force2⤵PID:2040
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:3196
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:928
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home911\ie\MediaWatchV1home911.dll
- Size 85KB
- SHA256 aa470b9e75a3092a7d7470ebbba5296b81a74f8210f60dd308dd15d47a885e1d
- MD5 66875ca5c2d36d8f20d0701c1f286e43
- SHA1 5fa0219bfce6e248d8f09739ee8352a493854890
- SHA512 dc7ace0eb3e5172d3cb98c54623c55ad3b176d1e039c2295f3140d123d0d4ead4af02c96c7513828aaab4ffb53a79ff26f5bc42405cc32f4a3570a52af376750
- SSDEEP 1536:9n/1CsEmkaMAvtahrOb8DktVwHA9glQvB5Zl:V12mkaMAlahrOVwguavB/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nshCB8E.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