Analysis
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max time kernel
119s -
max time network
123s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16/12/2021, 17:50
Static task
static1
Behavioral task
behavioral1
Sample
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.bin.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.bin.dll
Resource
win10-en-20211208
General
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Target
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.bin.dll
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Size
190KB
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MD5
b1df6d854a85cc516b17c297e52961c7
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SHA1
b63cca38c6d715f7614f4bce1dcca60585e90731
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SHA256
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793
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SHA512
472f4370e311b56db229f212f122dd925294462f5d265eed4f711fcc2e2058ca47caa031010732c3156326ee29b2d0e41d7154b389d8b345ce0f0b05db6fc05e
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.
description ioc Process File renamed C:\Users\Admin\Pictures\ReceiveRequest.tiff => C:\Users\Admin\Pictures\ReceiveRequest.tiff.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\WaitRequest.png => C:\Users\Admin\Pictures\WaitRequest.png.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\CompareStop.raw => C:\Users\Admin\Pictures\CompareStop.raw.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\ConnectShow.png => C:\Users\Admin\Pictures\ConnectShow.png.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\DebugUninstall.tif => C:\Users\Admin\Pictures\DebugUninstall.tif.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\PushPublish.raw => C:\Users\Admin\Pictures\PushPublish.raw.GPCEL regsvr32.exe File opened for modification C:\Users\Admin\Pictures\ReceiveRequest.tiff regsvr32.exe -
Drops desktop.ini file(s) 46 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Games\Purble Place\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\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:\Program Files\Common Files\Microsoft Shared\Stationery\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\ZZZ3YRT4\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\FreeCell\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\Solitaire\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\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\Local\Microsoft\Feeds Cache\E16QEJ8K\desktop.ini regsvr32.exe File opened for modification C:\Program Files\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\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\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\Public\Music\Sample Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\Sample Videos\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\Public\Music\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\Chess\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\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\VL9MRVWS\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\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\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\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\Local\Microsoft\Feeds Cache\H2R8HLJC\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\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 -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0150150.WMF regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\mn\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.greychartplugin_5.5.0.165303.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ecf.filetransfer_5.0.0.v20140827-1444.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\LICENSE regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107658.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGLBL020.XML regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD15061_.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Novokuznetsk regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\STS2\TAB_OFF.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD00121_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01166_.WMF regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\ks_IN\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14531_.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ENGLISH.LNG regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\kk\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Opulent.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\DESKSAM.SAM regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\include\win32\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.workbench3.nl_ja_4.4.0.v20140623020002.jar regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Etc\UCT regsvr32.exe File created C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0145895.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0183574.WMF regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\META-INF\readme.txt regsvr32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwrusash.dat regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ACCWIZ\ACWZUSR12.ACCDU regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.sat4j.pb_2.3.5.v201404071733.jar regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Desert\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0239063.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02742G.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\TR00006_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\VDK10.CMP regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\photoedge_selectionsubpicture.png regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\System\ado\msado20.tlb regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Pacific\Chatham regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\OIS_F_COL.HXK regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\3difr.x3d regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14691_.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\DocumentShare\WSSFilesToolHomePageBackground.jpg regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Teal.css regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01178_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE02369_.WMF regsvr32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\ShadesOfBlue.jpg regsvr32.exe File created C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\deploy\ffjcext.zip regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Kuala_Lumpur regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Danmarkshavn regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Panama regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.rcp.ja_5.5.0.165303\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\plugin.xml regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\ECHO\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ecf.provider.filetransfer.httpclient4.ssl_1.0.0.v20140827-1444.jar regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Africa\Casablanca regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Grand_Turk regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\ONENOTE.HXS regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.net.win32.x86_64.nl_ja_4.4.0.v20140623020002.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0239935.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0313974.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\Adobe AIR Application Installer.swf regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\Publisher.en-us\SETUP.XML regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-loaders.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\mscss7wre_es.dub regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FLAP.WMF regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe 1636 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27 PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27 PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27 PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27 PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27 PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27 PID 1648 wrote to memory of 1636 1648 regsvr32.exe 27
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.bin.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.bin.dll2⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:1636
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