Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
29-05-2024 14:18
Static task
static1
Behavioral task
behavioral1
Sample
0a986e64e43226720c7478a67eb9a1ff88d60b6de22b4e4303f9b25a2ab881a1.dll
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
0a986e64e43226720c7478a67eb9a1ff88d60b6de22b4e4303f9b25a2ab881a1.dll
Resource
win10v2004-20240426-en
General
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Target
0a986e64e43226720c7478a67eb9a1ff88d60b6de22b4e4303f9b25a2ab881a1.dll
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Size
395KB
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MD5
21daf51d8e7049bb0c31001df0df6de6
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SHA1
a6ee1e7c3ad2200c04d7809a84fee83ec6eca9de
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SHA256
0a986e64e43226720c7478a67eb9a1ff88d60b6de22b4e4303f9b25a2ab881a1
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SHA512
bd9a915c1ca02ce7d499871663dcfe623a64ca51283a7efccf14088a7b472e1551dba7a272a9290f293541bc614bea8fcf02faa56acae4529b70c73c16ad5b11
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SSDEEP
12288:seeSiw+xtMM0Lf00Ah02DICko3hCsOEsk4t/Ni:CSiht+LfM9DIro0sOEsk4t/N
Malware Config
Extracted
C:\Program Files (x86)\readme.txt
conti
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 (7927) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops desktop.ini file(s) 46 IoCs
description ioc Process File opened for modification C:\Users\Admin\Favorites\Links for United States\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\Local\Microsoft\Feeds Cache\FW0P2MZH\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\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Desktop\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Downloads\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\Admin\AppData\Local\Microsoft\Feeds Cache\0U93YK0N\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\FreeCell\desktop.ini regsvr32.exe File opened for modification C:\Program Files\Microsoft Games\Hearts\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Contacts\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 File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Favorites\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Libraries\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\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:\Program Files\Microsoft Games\Chess\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Searches\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Videos\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\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Documents\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Links\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\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:\Program Files (x86)\Common Files\microsoft shared\Stationery\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:\Program Files\Microsoft Games\Purble Place\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\Downloads\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini regsvr32.exe File opened for modification C:\Users\Public\Music\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\27PKR52P\desktop.ini regsvr32.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BP3UABCB\desktop.ini regsvr32.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\PRODIGY.NET.XML regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSTH7ES.LEX regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\DigSig.api regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SIGN.CFG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\button_right.gif regsvr32.exe File created C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\readme.txt regsvr32.exe File opened for modification C:\Program Files\Common Files\System\msadc\adcjavas.inc regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00468_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\ONENOTE_K_COL.HXK regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\ink\de-DE\readme.txt 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\icons\diagnostic-command-16.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\NUMERIC.JPG regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\Biscay\readme.txt regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\THANKS.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Apothecary.xml regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\MSPUB.DEV_COL.HXC regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Indian\Chagos regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\images\buttons.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsViewTemplate.html regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105502.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0153087.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Search.api regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Library\Analysis\ATPVBAEN.XLAM regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.app.nl_ja_4.4.0.v20140623020002.jar 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 opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-io-ui_zh_CN.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\TR00097_.WMF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\POWERPNT_F_COL.HXK regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\1033\ODBCR.SAM regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\core\core.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-api-caching.xml regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-autoupdate-services_zh_CN.jar regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\org-netbeans-modules-uihandler.xml_hidden regsvr32.exe File created C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME51.CSS regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Etc\GMT regsvr32.exe File created C:\Program Files\Java\jre7\lib\zi\Asia\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\ICE\PREVIEW.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Whitehorse regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FieldTypePreview\HEADING.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\OUTLOOK.HOL regsvr32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\extensions\VLSub.luac regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\epl-v10.html regsvr32.exe File created C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\INDUST\PREVIEW.GIF regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Cartridges\sql90.xsl regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\Publisher\Backgrounds\WB02097_.GIF regsvr32.exe File opened for modification C:\Program Files\Java\jre7\lib\images\cursors\cursors.properties regsvr32.exe File created C:\Program Files\DVD Maker\es-ES\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02398U.BMP regsvr32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\MinionPro-Regular.otf regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\IPML.ICO regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\MST7MDT regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-io_ja.jar regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Installed_schemas14.xss regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382954.JPG regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\PicturesToolIconImagesMask.bmp regsvr32.exe File created C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\readme.txt regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsColorChart.html regsvr32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-lib-uihandler_ja.jar regsvr32.exe File opened for modification C:\Program Files\Mozilla Firefox\gmp-clearkey\0.1\manifest.json regsvr32.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\1047x576black.png regsvr32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\QuickStyles\Traditional.dotx regsvr32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\PAPYRUS\PREVIEW.GIF regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe 2004 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28 PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28 PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28 PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28 PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28 PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28 PID 1072 wrote to memory of 2004 1072 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\0a986e64e43226720c7478a67eb9a1ff88d60b6de22b4e4303f9b25a2ab881a1.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\0a986e64e43226720c7478a67eb9a1ff88d60b6de22b4e4303f9b25a2ab881a1.dll2⤵
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:2004
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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