Analysis
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max time kernel
136s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-05-2024 14:23
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2b539e01c9130912fdc604222c4fb1d82da817eccc4bbda8e97fa132fa2994e5.dll
Resource
win7-20240221-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2b539e01c9130912fdc604222c4fb1d82da817eccc4bbda8e97fa132fa2994e5.dll
Resource
win10v2004-20240508-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
2b539e01c9130912fdc604222c4fb1d82da817eccc4bbda8e97fa132fa2994e5.dll
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Size
395KB
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MD5
06bd36c520229b2acfc5e3b2fd5bb770
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SHA1
94fbea5f65516a8f81552fd45313bfba4cf871f9
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SHA256
2b539e01c9130912fdc604222c4fb1d82da817eccc4bbda8e97fa132fa2994e5
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SHA512
a6627713e4ef33f309304af671b5db4dccc94a2ee97d22f007e7abc4d6590ce5a32e140edb9e8e315458fefad3b23e6c66b7e46d198101b6d2e7b097f705ddf0
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SSDEEP
12288:0GbI4ivc5yDu6FhMI9y6v6FhOnvu4MR1RFTFt:0GbITvcYDuohMI9y60hkvhMbvTX
Score
10/10
Malware Config
Extracted
Path
C:\ProgramData\readme.txt
Family
conti
Ransom Note
All of your files are currently encrypted by CONTI strain.
As you know (if you don't - just "google it"), all of the data that has been encrypted by our software cannot be recovered by any means without contacting our team directly.
If you try to use any additional recovery software - the files might be damaged, so if you are willing to try - try it on the data of the lowest value.
To make sure that we REALLY CAN get your data back - we offer you to decrypt 2 random files completely free of charge.
You can contact our team directly for further instructions through our website :
TOR VERSION :
(you should download and install TOR browser first https://torproject.org)
http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/
HTTPS VERSION :
https://contirecovery.click
YOU SHOULD BE AWARE!
Just in case, if you try to ignore us. We've downloaded a pack of your internal data and are ready to publish it on out news website if you do not respond. So it will be better for both sides if you contact us as soon as possible.
---BEGIN ID---
2gRarkVApsbggVSyrETPQ81XrSylLmTR6P6kpgQQW7yzQQfDKtzwtC5IaK9CXMDx
---END ID---
URLs
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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Renames multiple (7343) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\readme.txt regsvr32.exe -
Drops desktop.ini file(s) 31 IoCs
description ioc Process File opened for modification C:\Users\Admin\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini regsvr32.exe File opened for modification C:\Program Files\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Searches\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\Admin\Favorites\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\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\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\3D Objects\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\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:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini regsvr32.exe File opened for modification C:\Program Files (x86)\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Downloads\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\Admin\OneDrive\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI regsvr32.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_PrepidBypass-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\images\themes\dark\icons.png regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Fonts\private\BSSYM7.TTF regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\win8-scrollbar\arrow-left-pressed.gif regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\app\dev\nls\he-il\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\images\themes\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\js\nls\nl-nl\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\images\themes\dark\rhp_world_icon.png regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.PPT regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-140.png regsvr32.exe File created C:\Program Files (x86)\Common Files\System\ado\en-US\readme.txt regsvr32.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft SQL Server\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\tr-tr\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-white_scale-140.png regsvr32.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\GRPHFLT\MS.PNG regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml 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\ProjectStdCO365R_Subscription-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MEDIA\CLICK.WAV regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\mk\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Tracker\turnOffNotificationInTray.gif regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\js\nls\ja-jp\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\fi-fi\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Appstore\Download_on_the_App_Store_Badge_pt_135x40.svg regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\batch_window.html regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\inline-error-1x.png regsvr32.exe File opened for modification C:\Program Files\Java\jdk-1.8\lib\deployment.config regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\en-il\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\exportpdfupsell-app\css\main-selector.css regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\da-dk\readme.txt regsvr32.exe File created C:\Program Files\Internet Explorer\ja-JP\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUIFormulaBarModel.bin regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\images\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\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\uss-search\js\nls\ar-ae\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk-1.8\jvisualvm.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ul-oob.xrm-ms regsvr32.exe File created C:\Program Files\Common Files\microsoft shared\ink\bg-BG\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\ResiliencyLinks\Trust Protection Lists\Sigma\Analytics.DATA regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\A12_Spinner_int_2x.gif regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\nl-nl\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\js\nls\fr-fr\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\nl-nl\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunmscapi.jar 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\js\home-view\plugin.js regsvr32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml regsvr32.exe File opened for modification C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\cs.pak regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\meta\art\01_googleimage.luac regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\nls\root\ui-strings.js regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\combinepdf\js\nls\fr-fr\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\en-ae\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\pt-br\ui-strings.js 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\js\nls\uk-ua\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\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\my-computer-select\js\nls\he-il\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\Localized_images\nb-no\PlayStore_icon.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\ext\sunmscapi.jar regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\salesforce.ini regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-files\images\themes\dark\bg_pattern_RHP.png 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\en-il\readme.txt regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe 2656 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2600 wrote to memory of 2656 2600 regsvr32.exe 83 PID 2600 wrote to memory of 2656 2600 regsvr32.exe 83 PID 2600 wrote to memory of 2656 2600 regsvr32.exe 83
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\2b539e01c9130912fdc604222c4fb1d82da817eccc4bbda8e97fa132fa2994e5.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\2b539e01c9130912fdc604222c4fb1d82da817eccc4bbda8e97fa132fa2994e5.dll2⤵
- Drops startup file
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:2656
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1KB
MD57ef9af16fba19ef6c4047d3dec20d7c1
SHA1a0d7daca72e868fac1bf17b9dd6d53cffa2247b8
SHA256eaa4483ba17175d09ad8cdd70aee8d37ea738ec93a99f2ba1beeddc8587b0366
SHA512c8c43448abf02736b2eb923adbf3df070062252851be3e6831ae6fa98d5e8fd07408af3139c54ccb1395e43be0f002f6d25cee76f6f820f7a74c7995c41a6862