Analysis
-
max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
15-02-2022 19:52
Static task
static1
Behavioral task
behavioral1
Sample
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.dll
Resource
win10v2004-en-20220113
General
-
Target
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.dll
-
Size
190KB
-
MD5
b1df6d854a85cc516b17c297e52961c7
-
SHA1
b63cca38c6d715f7614f4bce1dcca60585e90731
-
SHA256
a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793
-
SHA512
472f4370e311b56db229f212f122dd925294462f5d265eed4f711fcc2e2058ca47caa031010732c3156326ee29b2d0e41d7154b389d8b345ce0f0b05db6fc05e
Malware Config
Extracted
C:\readme.txt
conti
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
https://contirecovery.click
Signatures
-
Conti Ransomware
Ransomware generally thought to be a successor to Ryuk.
-
Modifies extensions of user files 9 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
regsvr32.exedescription ioc process File renamed C:\Users\Admin\Pictures\EnterCompress.crw => C:\Users\Admin\Pictures\EnterCompress.crw.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\SaveTest.raw => C:\Users\Admin\Pictures\SaveTest.raw.GPCEL regsvr32.exe File opened for modification C:\Users\Admin\Pictures\UseFind.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\UseFind.tiff => C:\Users\Admin\Pictures\UseFind.tiff.GPCEL regsvr32.exe File opened for modification C:\Users\Admin\Pictures\AssertConvert.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\AssertConvert.tiff => C:\Users\Admin\Pictures\AssertConvert.tiff.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\CloseRequest.raw => C:\Users\Admin\Pictures\CloseRequest.raw.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\JoinRename.raw => C:\Users\Admin\Pictures\JoinRename.raw.GPCEL regsvr32.exe File renamed C:\Users\Admin\Pictures\SearchGroup.crw => C:\Users\Admin\Pictures\SearchGroup.crw.GPCEL regsvr32.exe -
Drops desktop.ini file(s) 23 IoCs
Processes:
regsvr32.exedescription ioc process 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\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\3D Objects\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe File opened for modification C:\Program Files\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\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Saved Games\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\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\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\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Libraries\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 -
Drops file in Program Files directory 64 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\vstoee100.tlb regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessDemoR_BypassTrial365-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeCore\97.0.1072.55\icudtl.dat regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MYSL.ICO regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\wordEtw.man regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10_RTL.mp4 regsvr32.exe File created C:\Program Files\Mozilla Firefox\gmp-clearkey\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\THIRDPARTYLICENSEREADME-JAVAFX.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_KMS_Client_AE-ul.xrm-ms regsvr32.exe File created C:\Program Files\Common Files\System\fr-FR\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-ppd.xrm-ms regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Setup Files\readme.txt regsvr32.exe File opened for modification C:\Program Files\CompleteUnpublish.TTS regsvr32.exe File created C:\Program Files (x86)\Internet Explorer\it-IT\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail2-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Grace-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ul-phn.xrm-ms regsvr32.exe File created C:\Program Files (x86)\Common Files\Microsoft Shared\VGX\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_OEM_Perp-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsdeu.xml regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Grace-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Mozilla Firefox\update-settings.ini regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\mr.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\SubmitGroup.M2TS regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\WordVL_MAK-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\mscss7wre_fr.dub regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\c2rpridslicensefiles_auto.xml regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\FindRename.dxf regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_KMS_Client_AE-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-pl.xrm-ms regsvr32.exe File created C:\Program Files\Mozilla Firefox\uninstall\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\jawt.lib regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\ext.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\lib\fontconfig.bfc regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\hi.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\Interceptor.tlb regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019DemoR_BypassTrial180-ppd.xrm-ms regsvr32.exe -
Drops file in Windows directory 8 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe 456 regsvr32.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
svchost.exeTiWorker.exedescription pid process Token: SeShutdownPrivilege 2104 svchost.exe Token: SeCreatePagefilePrivilege 2104 svchost.exe Token: SeShutdownPrivilege 2104 svchost.exe Token: SeCreatePagefilePrivilege 2104 svchost.exe Token: SeShutdownPrivilege 2104 svchost.exe Token: SeCreatePagefilePrivilege 2104 svchost.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe Token: SeRestorePrivilege 1468 TiWorker.exe Token: SeSecurityPrivilege 1468 TiWorker.exe Token: SeBackupPrivilege 1468 TiWorker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid process target process PID 764 wrote to memory of 456 764 regsvr32.exe regsvr32.exe PID 764 wrote to memory of 456 764 regsvr32.exe regsvr32.exe PID 764 wrote to memory of 456 764 regsvr32.exe regsvr32.exe
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.dll1⤵
- Suspicious use of WriteProcessMemory
PID:764 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\a47d7ff36064cab056d56dca4c466b4e98b331e4aed1d7aee2790cb9a94b1793.dll2⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:456
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2104
-
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1468