Analysis
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max time kernel
145s -
max time network
144s -
platform
windows7_x64 -
resource
win7-en-20210916 -
submitted
17-09-2021 05:42
Static task
static1
Behavioral task
behavioral1
Sample
957675e7fd1d1cb50f3252d3950d77ec1e37c3004c5da39674e03a817e9ba7f9.dll
Resource
win7-en-20210916
Behavioral task
behavioral2
Sample
957675e7fd1d1cb50f3252d3950d77ec1e37c3004c5da39674e03a817e9ba7f9.dll
Resource
win10v20210408
General
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Target
957675e7fd1d1cb50f3252d3950d77ec1e37c3004c5da39674e03a817e9ba7f9.dll
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Size
215KB
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MD5
c7d52ab979c73fc11e00c7ad32a2ee6c
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SHA1
ef750a4dfa69a0108e72306dc2ed53e13ed38c2d
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SHA256
957675e7fd1d1cb50f3252d3950d77ec1e37c3004c5da39674e03a817e9ba7f9
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SHA512
afb752109186f18742ef44f0c13e10273209069e894979560c03d184949ce39201d28179f117f5206a1212268f00f3a1b0c4eabed852e3206985c11501bc158e
Malware Config
Extracted
C:\readme.txt
conti
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
https://contirecovery.click
Signatures
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Conti Ransomware
Ransomware generally thought to be a successor to Ryuk.
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Modifies extensions of user files 7 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
regsvr32.exedescription ioc process File renamed C:\Users\Admin\Pictures\CompleteResolve.crw => C:\Users\Admin\Pictures\CompleteResolve.crw.LLVXT regsvr32.exe File renamed C:\Users\Admin\Pictures\ProtectConfirm.png => C:\Users\Admin\Pictures\ProtectConfirm.png.LLVXT regsvr32.exe File renamed C:\Users\Admin\Pictures\RegisterUninstall.png => C:\Users\Admin\Pictures\RegisterUninstall.png.LLVXT regsvr32.exe File opened for modification C:\Users\Admin\Pictures\RenameRestart.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\RenameRestart.tiff => C:\Users\Admin\Pictures\RenameRestart.tiff.LLVXT regsvr32.exe File renamed C:\Users\Admin\Pictures\RenameStep.png => C:\Users\Admin\Pictures\RenameStep.png.LLVXT regsvr32.exe File renamed C:\Users\Admin\Pictures\StopInvoke.png => C:\Users\Admin\Pictures\StopInvoke.png.LLVXT regsvr32.exe -
Drops desktop.ini file(s) 46 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Users\Admin\Saved Games\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\FreeCell\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\OC03JHER\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\Hearts\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\SpiderSolitaire\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Libraries\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\DYYROSXG\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\Chess\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\Stationery\Desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BSAJ56BB\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\Purble Place\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\Mahjong\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\ZJQIP8WR\desktop.ini regsvr32.exe File opened for modification C:\Program Files\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\Solitaire\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\desktop.ini regsvr32.exe -
Drops file in Program Files directory 64 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Program Files\7-Zip\Lang\cy.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Bibliography\Style\GostName.XSL regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\StopIconMask.bmp regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Martinique regsvr32.exe File created C:\Program Files (x86)\Common Files\System\ado\ja-JP\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\LoginDialogBackground.jpg regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105638.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0250504.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\cmm\GRAY.pf regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\macGrey.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00998_.WMF regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\BabyBoyMainToScenesBackground.wmv regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\requests\playlist.xml regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\include\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00267_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS00184_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382925.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\POSTCARD.XML regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Etc\GMT+11 regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\CGMIMP32.FLT regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE03257_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\prc\MyriadCAD.otf regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0152556.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\Accra regsvr32.exe File opened for modification C:\Program Files\DVD Maker\SecretST.TTF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MEDIA\EXPLODE.WAV regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.FR.XML regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationUp_ButtonGraphic.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00942_.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_cs.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\COMPASS\COMPASS.ELM regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Indian\Maldives regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Monterrey regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\epl-v10.html regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02450_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18256_.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ui.nl_ja_4.4.0.v20140623020002.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-openide-options.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-netbeans-core.xml regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\ModuleAutoDeps\org-openide-loaders.xml regsvr32.exe File created C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0101866.BMP regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.garbagecollector.nl_ja_4.4.0.v20140623020002.jar regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\configuration\org.eclipse.equinox.simpleconfigurator\readme.txt regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\Welcome Tool\readme.txt regsvr32.exe File created C:\Program Files\Common Files\Microsoft Shared\Stationery\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0200383.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH00780U.BMP regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\LABEL98.POC regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR30F.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\rtf_choosefont.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02041_.WMF regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\playlist\appletrailers.luac regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\trusted.libraries regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\BrightOrange\background.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD01176_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0287005.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Cartridges\sql2000.xsl regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ui.sdk.scheduler_1.2.0.v20140422-1847.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\SoftBlue.css regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\selection_subpicture.png regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\security\java.policy regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCDRESPS.ICO regsvr32.exe File created C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\ja\readme.txt regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe 564 regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\957675e7fd1d1cb50f3252d3950d77ec1e37c3004c5da39674e03a817e9ba7f9.dll1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/564-53-0x000007FEFB981000-0x000007FEFB983000-memory.dmpFilesize
8KB