Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
17-12-2021 10:32
Static task
static1
Behavioral task
behavioral1
Sample
03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.dll
Resource
win10-en-20211208
General
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Target
03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.dll
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Size
190KB
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MD5
f61817daf163c6617b22418bc887b9d3
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SHA1
e78d49cd87c37659890603bee2acca888ab381fd
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SHA256
03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1
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SHA512
3e0cd971b6d5d3721f710a7814b320596541bcb7f021f48353a0effc24282fa241c73ce5a76ef85ebffa686f1699ccab2e8c24ad20632461cc84e2befbd74366
Malware Config
Extracted
C:\readme.txt
conti
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
https://contirecovery.ws
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 10 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
regsvr32.exedescription ioc process File renamed C:\Users\Admin\Pictures\UnregisterWait.raw => C:\Users\Admin\Pictures\UnregisterWait.raw.EYUTA regsvr32.exe File renamed C:\Users\Admin\Pictures\UseExport.tif => C:\Users\Admin\Pictures\UseExport.tif.EYUTA regsvr32.exe File renamed C:\Users\Admin\Pictures\CompareApprove.crw => C:\Users\Admin\Pictures\CompareApprove.crw.EYUTA regsvr32.exe File renamed C:\Users\Admin\Pictures\ImportDismount.crw => C:\Users\Admin\Pictures\ImportDismount.crw.EYUTA regsvr32.exe File opened for modification C:\Users\Admin\Pictures\SearchResume.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\StopSync.png => C:\Users\Admin\Pictures\StopSync.png.EYUTA regsvr32.exe File opened for modification C:\Users\Admin\Pictures\SuspendTrace.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\SearchResume.tiff => C:\Users\Admin\Pictures\SearchResume.tiff.EYUTA regsvr32.exe File renamed C:\Users\Admin\Pictures\SuspendAdd.png => C:\Users\Admin\Pictures\SuspendAdd.png.EYUTA regsvr32.exe File renamed C:\Users\Admin\Pictures\SuspendTrace.tiff => C:\Users\Admin\Pictures\SuspendTrace.tiff.EYUTA regsvr32.exe -
Drops desktop.ini file(s) 46 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Program Files\Microsoft Games\Chess\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\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\desktop.ini regsvr32.exe 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\Admin\Desktop\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\Mahjong\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\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\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\Recorded TV\Sample Media\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\SpiderSolitaire\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\Public\Pictures\Sample Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\S3IV548V\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\Solitaire\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\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\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\FreeCell\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\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\AppData\Local\Microsoft\Feeds Cache\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\QDAZQ7UR\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\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Music\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:\Users\Public\Videos\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\K819CMRP\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\NK9YD4KU\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\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\FD00090_.WMF regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\ko\readme.txt regsvr32.exe File created C:\Program Files\VideoLAN\VLC\plugins\stream_out\readme.txt regsvr32.exe File opened for modification C:\Program Files\Common Files\System\ado\adojavas.inc regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.CO.NZ.XML regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\1047x576black.png regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\AXIS\THMBNAIL.PNG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CONTACT.CFG regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.win32.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\locale\org-netbeans-modules-core-kit_zh_CN.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\bdcmetadataresource.xsd regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Sofia regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\ZoomIconsMask.bmp regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\tl\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.filesystem_1.4.100.v20140514-1614.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\org-netbeans-modules-templates.xml_hidden regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00720_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolIcons\ContactSelector.ico regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Australia\Adelaide regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS01637_.WMF regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\gu\LC_MESSAGES\readme.txt regsvr32.exe File opened for modification C:\Program Files\Mozilla Firefox\browser\features\[email protected] regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00932_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0313965.JPG regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\deploy\messages_pt_BR.properties regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\OMSMMS.CFG regsvr32.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\am.pak regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\security\trusted.libraries regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Help\1033\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\InfoPathWelcomeImage.jpg regsvr32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\SoftBlue.jpg regsvr32.exe File created C:\Program Files (x86)\Common Files\System\de-DE\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SCHOL_02.MID regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Jerusalem regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\icons\diagnostic-command-16.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN04355_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Hardcover.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\OIS_COL.HXT regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationRight_SelectionSubpicture.png regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Noronha regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\CommonData\AlertImage_Medium.jpg regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-bg_glass_100_fdf5ce_1x400.png regsvr32.exe File created C:\Program Files\Common Files\Microsoft Shared\ink\pt-PT\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\doclib.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0287643.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\POWERPNT.DEV_F_COL.HXK regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Solutions\Document.gif regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-queries.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0149018.JPG regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Triedit\fr-FR\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00297_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Composite.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\PROG98.POC regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Europe\Andorra regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia\MPP\QuickTime.mpp regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\VIEW.ICO regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\VelvetRose.css regsvr32.exe File created C:\Program Files\MSBuild\readme.txt regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\be.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\PDFSigQFormalRep.pdf regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01183_.WMF 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 (x86)\Microsoft Office\Office14\BORDERS\MSART12.BDR regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\lib\derby.war regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe 1488 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe PID 1692 wrote to memory of 1488 1692 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.dll2⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:1488