Analysis
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max time kernel
138s -
max time network
123s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16/12/2021, 17:50
Static task
static1
Behavioral task
behavioral1
Sample
3db6e8df73f12b6a9fa9adb6ad87b017d530a9d736909338042735ed00a9463b.bin.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
3db6e8df73f12b6a9fa9adb6ad87b017d530a9d736909338042735ed00a9463b.bin.dll
Resource
win10-en-20211208
General
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Target
3db6e8df73f12b6a9fa9adb6ad87b017d530a9d736909338042735ed00a9463b.bin.dll
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Size
190KB
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MD5
6a97f8afc1151619d5b119407faeb1ad
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SHA1
185d65eb755cee888508d07adad60b39e0be2210
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SHA256
3db6e8df73f12b6a9fa9adb6ad87b017d530a9d736909338042735ed00a9463b
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SHA512
6e46da8df1ea210b8458f690b9b9951d02800190571a29ed71ac5f1d613bd77525cdf129a450c9bf155e4ca957a11ab5f254aeaa06b66faf62dcb36d2dfa94f1
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\PingShow.png => C:\Users\Admin\Pictures\PingShow.png.NKDLO regsvr32.exe File opened for modification C:\Users\Admin\Pictures\RepairEdit.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\RepairEdit.tiff => C:\Users\Admin\Pictures\RepairEdit.tiff.NKDLO regsvr32.exe File renamed C:\Users\Admin\Pictures\RestoreSwitch.png => C:\Users\Admin\Pictures\RestoreSwitch.png.NKDLO regsvr32.exe File renamed C:\Users\Admin\Pictures\StopSync.crw => C:\Users\Admin\Pictures\StopSync.crw.NKDLO regsvr32.exe File opened for modification C:\Users\Admin\Pictures\TestPing.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\TestPing.tiff => C:\Users\Admin\Pictures\TestPing.tiff.NKDLO regsvr32.exe -
Drops desktop.ini file(s) 46 IoCs
description ioc Process File opened for modification C:\Users\Public\Recorded TV\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)\Common Files\microsoft shared\Stationery\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\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\Documents\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\NK9YD4KU\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\Sample 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\Public\Libraries\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\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\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\QDAZQ7UR\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:\Program Files\Microsoft Games\Purble Place\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\Favorites\Links\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:\Program Files\Microsoft Games\Chess\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\Desktop\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\Public\Pictures\Sample Pictures\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\S3IV548V\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\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\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Documents\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\Public\Music\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\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\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 -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Stationery\1033\JUNGLE.GIF regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_notes-txt-background.png 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\css\e4_classic_winxp.css regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-settings_ja.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0187893.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WB01295_.GIF regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_image-frame-border.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ACCWIZ\ACWZLIB.ACCDE regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\FORMS\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Europe\Zaporozhye 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\schema\com.jrockit.mc.rjmx.syntheticnotification.exsd regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\ks_IN\LC_MESSAGES\vlc.mo regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0171685.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02829J.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00633_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\RSPMECH.POC regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationRight_SelectionSubpicture.png regsvr32.exe File created C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\readme.txt regsvr32.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\nb.pak regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Tahiti regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\YST9YDT regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0195320.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\ext\zipfs.jar regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\PAPYRUS\readme.txt regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsPreviewTemplate.html regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-progress-ui_zh_CN.jar regsvr32.exe File created C:\Program Files (x86)\Google\Policies\readme.txt regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Source Engine\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\CARBN_01.MID regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGMN111.XML regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SECURE.CFG 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.properties regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00345_.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.sat4j.core_2.3.5.v201308161310.jar regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\ta\LC_MESSAGES\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\bg_Premium.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\FLYER.DPV regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\QUERIES\MSN MoneyCentral Investor Currency Rates.iqy regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\QuickStyles\Traditional.dotx regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\XML Files\StarterToolTemplates.xml regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Etc\GMT regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\sr\LC_MESSAGES\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-io.xml regsvr32.exe File created C:\Program Files (x86)\Common Files\System\ja-JP\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099146.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18212_.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jetty.io_8.1.14.v20131031.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-host-remote_zh_CN.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0287645.JPG regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\IRIS\readme.txt regsvr32.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\fa.pak regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Recife regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Jujuy regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861258748.profile.gz regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\Documentation.url regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Newsprint.eftx regsvr32.exe File created C:\Program Files\Common Files\Microsoft Shared\ink\en-US\readme.txt regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\WATER\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Pyongyang regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Swirl\background.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\mscss7wre_fr.dub regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01143_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA01149_.WMF regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe 612 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1128 wrote to memory of 612 1128 regsvr32.exe 27 PID 1128 wrote to memory of 612 1128 regsvr32.exe 27 PID 1128 wrote to memory of 612 1128 regsvr32.exe 27 PID 1128 wrote to memory of 612 1128 regsvr32.exe 27 PID 1128 wrote to memory of 612 1128 regsvr32.exe 27 PID 1128 wrote to memory of 612 1128 regsvr32.exe 27 PID 1128 wrote to memory of 612 1128 regsvr32.exe 27
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\3db6e8df73f12b6a9fa9adb6ad87b017d530a9d736909338042735ed00a9463b.bin.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\3db6e8df73f12b6a9fa9adb6ad87b017d530a9d736909338042735ed00a9463b.bin.dll2⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:612
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