Analysis
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max time kernel
118s -
max time network
121s -
platform
windows7_x64 -
resource
win7-en-20211104 -
submitted
11-11-2021 21:01
Static task
static1
Behavioral task
behavioral1
Sample
JAFTEXx86.dll
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
JAFTEXx86.dll
Resource
win10-en-20211014
General
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Target
JAFTEXx86.dll
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Size
190KB
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MD5
24819ec6a4f57ac3d84538d1b2f422cd
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SHA1
2c1ca712d5c1f0920d13208796975afc01ce6b81
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SHA256
e043dea504d025f18f406d9649b64498338f3330ab9cf30e4efe9c0c2c0231df
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SHA512
b8720879eff6529a80bc86d6f763561e214c2e4bcd5aacd028d316ef6254c1e584c42afd05d9b7139f21a0ad1c3528dc189898ae37735686ad564ba4ae825214
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 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
regsvr32.exedescription ioc process File renamed C:\Users\Admin\Pictures\ConnectSplit.raw => C:\Users\Admin\Pictures\ConnectSplit.raw.VADYN regsvr32.exe File opened for modification C:\Users\Admin\Pictures\MergeRename.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\MergeRename.tiff => C:\Users\Admin\Pictures\MergeRename.tiff.VADYN regsvr32.exe File renamed C:\Users\Admin\Pictures\SubmitTrace.tif => C:\Users\Admin\Pictures\SubmitTrace.tif.VADYN regsvr32.exe -
Drops desktop.ini file(s) 46 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\0WAF332L\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\ORVXVB76\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\Documents\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:\Program Files\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\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:\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\UUBNW27H\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Libraries\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\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\Public\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\ZTH0NOOE\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\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Saved Games\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\Downloads\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\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\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\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\Microsoft Games\Mahjong\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\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Downloads\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:\Program Files\Common Files\Microsoft Shared\Stationery\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\Chess\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
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00212_.WMF regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\CONCRETE\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Indian\Maldives regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\uz\LC_MESSAGES\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-swing-outline_ja.jar regsvr32.exe File created C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Linguistics\Providers\Proximity\11.00\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\update_tracking\org-netbeans-modules-profiler.xml regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\PROPLUS\readme.txt regsvr32.exe File created C:\Program Files\Microsoft Office\Office14\1033\readme.txt regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\DAO\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0198234.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\MEDIA\OFFICE14\OFFICE10.MMW 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\jre7\lib\zi\Asia\Kathmandu regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveDocumentReview\ActiveTabImage.jpg regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\Welcome Tool\IconImagesMask.bmp regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-jvm_ja.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\BrightOrange\button.gif regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Europe\Istanbul regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.rcp.feature_1.2.0.v20140523-0116\feature.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14755_.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.engine.nl_ja_4.4.0.v20140623020002.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS00100_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD10301_.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\deploy\messages_ja.properties regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Bogota regsvr32.exe File created C:\Program Files\Common Files\Microsoft Shared\MSInfo\fr-FR\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\epl-v10.html 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\rarrow.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0287642.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MEDIA\BREEZE.WAV regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18236_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR1B.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CONTACTL.ICO regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-api-visual.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-core.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS00441_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107282.WMF regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\et\LC_MESSAGES\vlc.mo regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\System\msadc\adcjavas.inc regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\OUTLOOK_K_COL.HXK regsvr32.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\ja-JP\sqloledb.rll.mui regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\NavigationRight_ButtonGraphic.png regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\mn.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0152892.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WING2.WMF regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\1033\Bibliography\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.osgi.nl_zh_4.4.0.v20140623020002.jar regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Phoenix regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\button_right.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\IN00118_.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Yakutat regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Stationery\1033\DADSHIRT.HTM regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\SpecialNavigationRight_ButtonGraphic.png regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\ink\de-DE\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\CASCADE\THMBNAIL.PNG regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Riyadh88 regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\Sounds\Things\SHOT.WAV regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Denver regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\ba.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02793_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\NL.ROGERS.COM.XML regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Verve.xml regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe 996 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe PID 360 wrote to memory of 996 360 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\JAFTEXx86.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\JAFTEXx86.dll2⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses