Analysis
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max time kernel
89s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
10-04-2024 14:06
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
c77032c772e0ef0e3200edf38223f9c6047e56294e840ea79689b9e56048c69c.dll
Resource
win7-20240221-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
c77032c772e0ef0e3200edf38223f9c6047e56294e840ea79689b9e56048c69c.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
c77032c772e0ef0e3200edf38223f9c6047e56294e840ea79689b9e56048c69c.dll
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Size
411KB
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MD5
96c017a5aa2c8eb6928c42b65007b0b1
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SHA1
10538d70484dde435247e4f35bc3ccb071da124e
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SHA256
c77032c772e0ef0e3200edf38223f9c6047e56294e840ea79689b9e56048c69c
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SHA512
8ef91a12b344b4695ed6d7853112ae1984cb594f537622a4c8ffcdff7a6c0d076b5c8512aca60b91df9ac48615b1844ecd868155b06b258fccf80945e42e8e33
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SSDEEP
6144:EzHsraE2aGes43f8+EeulBermsvwlAlGmlIquGWbD15X54/7x:EzN01U+Eeul+mo3l7yqBWH1du/7x
Score
10/10
Malware Config
Extracted
Path
C:\Program Files (x86)\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://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/4II8qZsSBFY05l3oI49GoWjYNaSTfkhOox0XQSb7NIBdAROaIXSX4zPUq7uC9E0X
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---
4II8qZsSBFY05l3oI49GoWjYNaSTfkhOox0XQSb7NIBdAROaIXSX4zPUq7uC9E0X
---END ID---
URLs
http://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/4II8qZsSBFY05l3oI49GoWjYNaSTfkhOox0XQSb7NIBdAROaIXSX4zPUq7uC9E0X
Signatures
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Conti Ransomware
Ransomware generally thought to be a successor to Ryuk.
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Renames multiple (7342) 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
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\Contacts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\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\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\OneDrive\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\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\Music\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:\Program Files (x86)\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Desktop\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:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI regsvr32.exe File opened for modification C:\Users\Public\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\Documents\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\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\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 -
Drops file in Program Files directory 64 IoCs
Processes:
regsvr32.exedescription ioc Process File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTest-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\MinionPro-Bold.otf regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\CASCADE\PREVIEW.GIF regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_MAK-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\COMPASS\THMBNAIL.PNG regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\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\iw_get.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL116.XML regsvr32.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\sqlxmlx.rll.mui regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_organize_18.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Playstore\zh-tw_get.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\index.win32.bundle regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\eu-es\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\pl-pl\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\walk-through\js\nls\fi-fi\readme.txt regsvr32.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\calendars.properties regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PROOF\MSSP7EN.dub regsvr32.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightItalic.ttf regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\images\themeless\mobile_reader_logo.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\System\VEN2232.OLB 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\illustrations_retina.png regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\js\nls\fr-fr\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\sv-se\ui-strings.js regsvr32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man regsvr32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\hwrenclm.dat regsvr32.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\deploy\messages_es.properties regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\hi_contrast\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\images\core_icons.png regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\s_checkbox_selected_18.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ul-oob.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ul-phn.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_gridview_selected-hover.svg regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUIFormulaBarModel.bin regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\signatures\js\nls\zh-cn\ui-strings.js regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-pl.xrm-ms regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer-select\js\nls\cs-cz\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\send-for-sign\images\themes\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\js\nls\root\readme.txt regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\js\nls\hu-hu\readme.txt regsvr32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsplk.xml regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Trial-pl.xrm-ms regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\PPKLite.api regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Tracker\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\zh-cn\ui-strings.js regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\ko-kr\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTest-ppd.xrm-ms regsvr32.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\jvm.hprof.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\MyriadPro-Regular.otf regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\PIXEL\PIXEL.ELM regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\js\nls\eu-es\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\app-center\js\nls\it-it\ui-strings.js regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\themes\dark\Close.png regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\themes\dark\Close2x.png regsvr32.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\security\javaws.policy regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\sq\LC_MESSAGES\vlc.mo regsvr32.exe File created C:\Program Files (x86)\Common Files\Microsoft Shared\Stationery\readme.txt regsvr32.exe File created C:\Program Files\VideoLAN\VLC\locale\brx\readme.txt regsvr32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\ISO690Nmerical.XSL regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\pdf-ownership-rdr-fr_fr_2x.gif regsvr32.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\nl-nl\readme.txt regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
regsvr32.exepid Process 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe 3536 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
regsvr32.exedescription pid Process procid_target PID 1872 wrote to memory of 3536 1872 regsvr32.exe 86 PID 1872 wrote to memory of 3536 1872 regsvr32.exe 86 PID 1872 wrote to memory of 3536 1872 regsvr32.exe 86
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\c77032c772e0ef0e3200edf38223f9c6047e56294e840ea79689b9e56048c69c.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1872 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\c77032c772e0ef0e3200edf38223f9c6047e56294e840ea79689b9e56048c69c.dll2⤵
- Drops startup file
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:3536
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1KB
MD53bade989376423b866cc0199280e0e8d
SHA1c4dbf7dbb7cff7b97e560fb747ecbe08428f77f5
SHA256f083a59201a8bf3620f110f935d89ccbaa90dc93238503bc4df5879929ce8c80
SHA512676c75fa5cea0b7a7c36da3ddce9e25d15de29a05ba88e62aab4934b8ca1a4006f6ebf64b5b3e242b0e4f9f786c2a3166f95c16c207838ecbab07ee00640c5e0