Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
20-01-2022 11:33
Static task
static1
Behavioral task
behavioral1
Sample
904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll
Resource
win10v2004-en-20220112
General
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Target
904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll
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Size
190KB
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MD5
641d7e44b87e88608443d6423937d983
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SHA1
7e9f57de4eaf2fa3535c1b4f0c5fa1f33b3dd2ac
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SHA256
904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5
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SHA512
f0c40529be05c7631bd91d94232dbc9036780565f05863c3253e273f1b84156c4cede68f594d645c52f2f8478b6c3b36e312a9bf4f78c4a94ed65fed0b2d372b
Malware Config
Extracted
C:\readme.txt
conti
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
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.
Processes:
regsvr32.exedescription ioc process File renamed C:\Users\Admin\Pictures\GrantGet.crw => C:\Users\Admin\Pictures\GrantGet.crw.TXOZF regsvr32.exe File renamed C:\Users\Admin\Pictures\RevokeUnblock.crw => C:\Users\Admin\Pictures\RevokeUnblock.crw.TXOZF regsvr32.exe File opened for modification C:\Users\Admin\Pictures\SyncDismount.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\SyncDismount.tiff => C:\Users\Admin\Pictures\SyncDismount.tiff.TXOZF regsvr32.exe File opened for modification C:\Users\Admin\Pictures\SyncSearch.tiff regsvr32.exe File renamed C:\Users\Admin\Pictures\SyncSearch.tiff => C:\Users\Admin\Pictures\SyncSearch.tiff.TXOZF regsvr32.exe File renamed C:\Users\Admin\Pictures\ConnectRestart.crw => C:\Users\Admin\Pictures\ConnectRestart.crw.TXOZF regsvr32.exe -
Sets service image path in registry 2 TTPs
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Drops startup file 1 IoCs
Processes:
regsvr32.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\readme.txt regsvr32.exe -
Drops desktop.ini file(s) 31 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Users\Admin\Saved Games\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\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Libraries\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\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\Public\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\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\Admin\Pictures\Saved Pictures\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI regsvr32.exe File opened for modification C:\Users\Admin\3D Objects\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\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Videos\desktop.ini regsvr32.exe -
Drops file in Program Files directory 64 IoCs
Processes:
regsvr32.exedescription ioc process File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\pt-br\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\ca-es\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\ui-strings.js regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-ppd.xrm-ms regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\js\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\zh-cn\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\nb-no\ui-strings.js regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\theme-2x.png regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\pa-in.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PROOF\MSHY7EN.LEX regsvr32.exe File created C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\ResiliencyLinks\WidevineCdm\_platform_specific\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\generic-rhp-app\images\themes\dark\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\js\nls\sl-sl\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\lib\resources.jar regsvr32.exe File created C:\Program Files\VideoLAN\VLC\lua\intf\readme.txt regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\sd\icecast.luac regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.equinox.p2.repository.nl_ja_4.4.0.v20140623020002.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.emf.ecore_2.10.1.v20140901-1043\feature.xml regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\plugin.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\Abbreviations\en_GB\List.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office15\pkeyconfig-office.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\rename.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN110.XML regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\feature.xml regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-files-select\js\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\Dictionaries\en_GB\hyph_en_GB.dic regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp3-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\tools\x_2x.png regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\tools\@1x\[email protected] regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\feature.xml regsvr32.exe File created C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000008\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\visualvm\config\Modules\org-netbeans-core-output2.xml_hidden regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\signatures\images\cstm_brand_preview2x.png regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-files\js\nls\de-de\ui-strings.js regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\js\nls\fi-fi\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\images\themes\dark\bun.png regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\zh-tw.txt regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\modules\dkjson.luac regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\fa\LC_MESSAGES\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\META-INF\ECLIPSE_.SF regsvr32.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\Cartridges\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_closereview_18.svg regsvr32.exe File opened for modification C:\Program Files\7-Zip\Lang\ne.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\nb-no\ui-strings.js regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest5-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_selectlist_checkmark_18.svg regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\walk-through\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\images\themeless\action_poster.jpg regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\eu-es\ui-strings.js regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ppd.xrm-ms regsvr32.exe File created C:\Program Files\Microsoft Office\root\Office16\MSIPC\vi\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_sortedby_18.svg regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_invite_18.svg regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\js\nls\en-il\ui-strings.js regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\js\nls\es-es\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\lib\fonts\LucidaSansRegular.ttf regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\en-il\ui-strings.js regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\uk-ua\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\nls\readme.txt regsvr32.exe -
Modifies data under HKEY_USERS 41 IoCs
Processes:
WaaSMedicAgent.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 1676 NOTEPAD.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid process 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe 772 regsvr32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
TextInputHost.exepid process 1172 TextInputHost.exe 1172 TextInputHost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid process target process PID 456 wrote to memory of 772 456 regsvr32.exe regsvr32.exe PID 456 wrote to memory of 772 456 regsvr32.exe regsvr32.exe PID 456 wrote to memory of 772 456 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll1⤵
- Suspicious use of WriteProcessMemory
PID:456 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll2⤵
- Modifies extensions of user files
- Drops startup file
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:772
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe c8e1f8af4f80e9b7d483a13360d29b63 9BC1rJC06k+5TJbrMbgHig.0.1.0.0.01⤵
- Modifies data under HKEY_USERS
PID:3676
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme.txt1⤵
- Opens file in notepad (likely ransom note)
PID:1676
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca1⤵
- Suspicious use of SetWindowsHookEx
PID:1172
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k wusvcs -p1⤵PID:3320
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
2da0328cc889bc5ba5e28cb4537f2bbc
SHA1f7c12e8253b0ee4a8d22c563bf9eb85ac8d649ed
SHA25651c19371ff5a46a1abc6ab22f04dc912dea030f513d06615fef0cadb74380760
SHA512db64ba8b15a0b2d0af158c68ae1fcf66c4390a38e76318aa6e50aa73483fb91e91f131405128d567266abcd3f4f60c567003777e36d7393dfcbb446ae33ceb59