Analysis
-
max time kernel
119s -
max time network
119s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
17-12-2021 10:32
Static task
static1
Behavioral task
behavioral1
Sample
3125aa67fc6e09a00aad39e0eb8024b849d54de353b1a45b5297d4c5d5e87941.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
3125aa67fc6e09a00aad39e0eb8024b849d54de353b1a45b5297d4c5d5e87941.dll
Resource
win10-en-20211208
General
-
Target
3125aa67fc6e09a00aad39e0eb8024b849d54de353b1a45b5297d4c5d5e87941.dll
-
Size
190KB
-
MD5
ae32496289a4b4e4f670127849517ccf
-
SHA1
b96d0b726e1a2ff46847db035599291b8423aff4
-
SHA256
3125aa67fc6e09a00aad39e0eb8024b849d54de353b1a45b5297d4c5d5e87941
-
SHA512
37a0c038dbe85d51b885a1ece0bfd096d162ecd93ea1489c2efd5c23d0de2abedb754ce62b9e09ad3f24306ec34dbe5deab026000d727187c6ce94bc2617dffb
Malware Config
Extracted
C:\readme.txt
conti
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
https://contirecovery.ws
Signatures
-
Conti Ransomware
Ransomware generally thought to be a successor to Ryuk.
-
Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
regsvr32.exedescription ioc process File renamed C:\Users\Admin\Pictures\DenyMerge.png => C:\Users\Admin\Pictures\DenyMerge.png.YMFOS regsvr32.exe File renamed C:\Users\Admin\Pictures\EnterCheckpoint.raw => C:\Users\Admin\Pictures\EnterCheckpoint.raw.YMFOS regsvr32.exe File renamed C:\Users\Admin\Pictures\NewRename.raw => C:\Users\Admin\Pictures\NewRename.raw.YMFOS regsvr32.exe File renamed C:\Users\Admin\Pictures\RequestExport.tif => C:\Users\Admin\Pictures\RequestExport.tif.YMFOS regsvr32.exe File renamed C:\Users\Admin\Pictures\UnblockConvertFrom.tif => C:\Users\Admin\Pictures\UnblockConvertFrom.tif.YMFOS regsvr32.exe -
Drops desktop.ini file(s) 46 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Users\Public\Libraries\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\S3IV548V\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\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\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\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\Sample Videos\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\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\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\Favorites\Links for United States\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\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\AppData\Local\Microsoft\Feeds Cache\QDAZQ7UR\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\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\Pictures\Sample Pictures\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:\Program Files\Microsoft Games\FreeCell\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\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\NK9YD4KU\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\Saved Games\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 (x86)\Microsoft Office\Office14\1033\DataServices\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\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\Downloads\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\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 File opened for modification C:\Users\Public\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\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe -
Drops file in Program Files directory 64 IoCs
Processes:
regsvr32.exedescription ioc process File created C:\Program Files\Google\Chrome\Application\89.0.4389.114\readme.txt regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\NavigationLeft_SelectionSubpicture.png regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Checkers.api regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Jerusalem regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\VDK10.STD regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD00419_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WING1.WMF regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\16_9-frame-background.png 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\license.html regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00382_.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Jayapura regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Amsterdam regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Rio_Branco regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\epl-v10.html regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Help\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH01478U.BMP regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Asuncion regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Resources\1033\msmdsrv.rll regsvr32.exe File created C:\Program Files\Mozilla Firefox\uninstall\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN02559_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0106020.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\COMPASS\THMBNAIL.PNG regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20141007-2033\META-INF\MANIFEST.MF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0279644.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SY00792_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\WINWORD.DEV_COL.HXT regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_VelvetRose.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105240.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0238983.WMF regsvr32.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Antarctica\Davis regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Swirl\background.gif regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-snaptracer_zh_CN.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\StaticText.jpg regsvr32.exe File created C:\Program Files\Mozilla Firefox\defaults\readme.txt regsvr32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Blue_Gradient.jpg regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\System\ado\msado26.tlb 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\Office14\1033\PUBSPAPR\ZPDIR49F.GIF regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\js\jquery.jstree.js regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.core.feature_1.3.0.v20140523-0116\license.html regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-lib-profiler.jar regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Stationery\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0101980.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0240189.WMF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-multiview_ja.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CONTACTS.ICO regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Baghdad regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\Discussion\DiscussionToolIconImagesMask.bmp regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Clarity.thmx regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107490.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Fonts\Clarity.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR6B.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.core.commands_0.10.2.v20140424-2344.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Resources\1033\msolui100.rll regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\license.html regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\rtf_alignright.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01039_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\AccessWeb\SERVWRAP.ASP regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\PIXEL\THMBNAIL.PNG 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\lib\mailapi.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsViewFrame.html regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BrightYellow.css regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe 1596 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe PID 1696 wrote to memory of 1596 1696 regsvr32.exe regsvr32.exe
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\3125aa67fc6e09a00aad39e0eb8024b849d54de353b1a45b5297d4c5d5e87941.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\3125aa67fc6e09a00aad39e0eb8024b849d54de353b1a45b5297d4c5d5e87941.dll2⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:1596