Analysis
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max time kernel
153s -
max time network
96s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
29-09-2021 06:16
Static task
static1
Behavioral task
behavioral1
Sample
bc413e02defccc55f1c9925e9cf4fde4a714db1e06c6e021ddbd4b15cf2613d7.dll
Resource
win7v20210408
Behavioral task
behavioral2
Sample
bc413e02defccc55f1c9925e9cf4fde4a714db1e06c6e021ddbd4b15cf2613d7.dll
Resource
win10v20210408
General
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Target
bc413e02defccc55f1c9925e9cf4fde4a714db1e06c6e021ddbd4b15cf2613d7.dll
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Size
215KB
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MD5
e099a53fdcef7bdfb58b3a7b4f42e4d2
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SHA1
1b3611aae8621f1d135950841d6a6a8edab7ea4f
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SHA256
bc413e02defccc55f1c9925e9cf4fde4a714db1e06c6e021ddbd4b15cf2613d7
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SHA512
b1be1a23b74f4f5cb4eaf08e040d5113856d8c4d739decf3f1682fc1fe6db9424e52870232dddf8a2e2f5c4f4829e6d0dd6d15a4201f02eebf81e5249d340de2
Malware Config
Extracted
C:\readme.txt
conti
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
https://contirecovery.top/
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 12 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\ApproveUse.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\ApproveUse.tiff => C:\Users\Admin\Pictures\ApproveUse.tiff.NRKCA regsvr32.exe File renamed C:\Users\Admin\Pictures\EditConvertTo.tiff => C:\Users\Admin\Pictures\EditConvertTo.tiff.NRKCA regsvr32.exe File renamed C:\Users\Admin\Pictures\EnableRemove.raw => C:\Users\Admin\Pictures\EnableRemove.raw.NRKCA regsvr32.exe File opened for modification C:\Users\Admin\Pictures\SkipAdd.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\SubmitConnect.crw => C:\Users\Admin\Pictures\SubmitConnect.crw.NRKCA regsvr32.exe File renamed C:\Users\Admin\Pictures\ConvertFromFind.tif => C:\Users\Admin\Pictures\ConvertFromFind.tif.NRKCA regsvr32.exe File renamed C:\Users\Admin\Pictures\DenyCheckpoint.raw => C:\Users\Admin\Pictures\DenyCheckpoint.raw.NRKCA regsvr32.exe File opened for modification C:\Users\Admin\Pictures\EditConvertTo.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\ReadMount.png => C:\Users\Admin\Pictures\ReadMount.png.NRKCA regsvr32.exe File renamed C:\Users\Admin\Pictures\ReadSuspend.png => C:\Users\Admin\Pictures\ReadSuspend.png.NRKCA regsvr32.exe File renamed C:\Users\Admin\Pictures\SkipAdd.tiff => C:\Users\Admin\Pictures\SkipAdd.tiff.NRKCA regsvr32.exe -
Drops desktop.ini file(s) 39 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Users\Public\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\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\Admin\AppData\Local\Microsoft\Feeds Cache\VNYR844D\desktop.ini regsvr32.exe File opened for modification C:\Program Files\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\H18KNA1T\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\NU1L7O13\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\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:\Users\Admin\Saved Games\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\Links\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:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\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:\Program Files\Common Files\Microsoft Shared\Stationery\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\Local\Microsoft\Feeds Cache\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\E9RC2MV6\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Libraries\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini regsvr32.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini regsvr32.exe -
Drops file in Program Files directory 64 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02444_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0103850.WMF regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_btn-previous-static.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD10302_.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Solutions\Main.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\System\ado\msadox28.tlb regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00455_.WMF regsvr32.exe File created C:\Program Files\VideoLAN\VLC\plugins\codec\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.reconciler.dropins_1.1.200.v20131119-0908.jar regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Indiana\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105414.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBBA\MSPUB10.BDR regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_pl.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\FormsPrintTemplateRTL.html regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\PROOF\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0230558.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0336075.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBBA\MSPUB1B.BDR regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Argentina\San_Juan regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-keyring-impl_ja.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-profiler.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0293236.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Caracas regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\OliveGreen.css regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\ACTIP10.HLP regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\SaslPrep\SaslPrepProfile_norm_bidi.spp regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.net_1.2.200.v20140124-2013.jar regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\wa\LC_MESSAGES\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00296_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\QUERIES\MSN MoneyCentral Investor Stock Quotes.iqy regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\Sounds\Places\RADAR.WAV regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.rcp.product_5.5.0.165303\feature.xml regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Lime\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATH.HXS regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\MyriadPro-Regular.otf regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\IRIS\IRIS.ELM regsvr32.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\gu.pak regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Dhaka regsvr32.exe File created C:\Program Files (x86)\Google\Update\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\WEBCALSO.POC regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\RMNSQUE\RMNSQUE.ELM regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR1F.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\THIRDPARTYLICENSEREADME-JAVAFX.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099165.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA00810_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE02287_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\InfoPathOM\InfoPathOMFormServices\Microsoft.Office.InfoPath.xml regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-2 regsvr32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\grid_(cm).wmf regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\NavigationUp_SelectionSubpicture.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR33F.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jetty.http_8.1.14.v20131031.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Toronto regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\flavormap.properties regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\rollinghills.png regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Indian\Mauritius regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\ar\LC_MESSAGES\vlc.mo regsvr32.exe File opened for modification C:\Program Files (x86)\Internet Explorer\SIGNUP\install.ins regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\RTC.der regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105390.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02371_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Stationery\1033\JUDGESCH.GIF regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\ks_IN\LC_MESSAGES\vlc.mo regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\nn\LC_MESSAGES\readme.txt regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe 1080 regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\bc413e02defccc55f1c9925e9cf4fde4a714db1e06c6e021ddbd4b15cf2613d7.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/1080-60-0x000007FEFB631000-0x000007FEFB633000-memory.dmpFilesize
8KB