Analysis
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max time kernel
122s -
max time network
122s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
19-10-2021 05:55
Static task
static1
Behavioral task
behavioral1
Sample
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe
Resource
win10-en-20211014
General
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Target
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe
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Size
938KB
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MD5
17b447b971a4977b2bfb2c28659aa1dd
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SHA1
4af0fc90413fffcb4f73839adcae91ccdcc7c4f0
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SHA256
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b
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SHA512
a92fdc07cbf295bbf90174820a1a24b7909bd55845acd6f01ca36a2540aed822f6a9fca8d5d78052917b55355c65ad2a80cde03f285493277162691f51c39949
Malware Config
Extracted
C:\Users\Public\index.html
Extracted
C:\Users\Public\ATOMSILO-README.hta
atomsilo
Email:[email protected]
http://mhdehvkomeabau7gsetnsrhkfign4jgnx3wajth5yb5h6kvzbd72wlqd.onion
Signatures
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AtomSilo
Ransomware family first seen in September 2021.
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Modifies extensions of user files 14 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exedescription ioc process File renamed C:\Users\Admin\Pictures\ImportUse.raw => \??\c:\Users\Admin\Pictures\ImportUse.raw.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\ReceiveSkip.tiff.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File renamed C:\Users\Admin\Pictures\SwitchFormat.png => \??\c:\Users\Admin\Pictures\SwitchFormat.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\SwitchFormat.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File renamed C:\Users\Admin\Pictures\WatchNew.png => \??\c:\Users\Admin\Pictures\WatchNew.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\ImportUse.raw.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File renamed C:\Users\Admin\Pictures\NewRevoke.tif => \??\c:\Users\Admin\Pictures\NewRevoke.tif.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\NewRevoke.tif.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File renamed C:\Users\Admin\Pictures\ReceiveSkip.tiff => \??\c:\Users\Admin\Pictures\ReceiveSkip.tiff.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\WatchNew.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File renamed C:\Users\Admin\Pictures\DisconnectUnregister.png => \??\c:\Users\Admin\Pictures\DisconnectUnregister.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\DisconnectUnregister.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Users\Admin\Pictures\MoveRegister.tiff.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File renamed C:\Users\Admin\Pictures\MoveRegister.tiff => \??\c:\Users\Admin\Pictures\MoveRegister.tiff.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe -
Drops startup file 1 IoCs
Processes:
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exedescription ioc process File created \??\c:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe -
Drops file in Program Files directory 64 IoCs
Processes:
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exedescription ioc process File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\update_tracking\org-netbeans-bootstrap.xml.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\js\nls\root\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\Download_on_the_App_Store_Badge_fr_135x40.svg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\nls\zh-tw\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.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.inf.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\modules\ext\jhall-2.0_05.jar.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0000-1000-0000000FF1CE.xml.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-ul-oob.xrm-ms.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Cyrl-BA\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Videos\Help\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\js\nls\ro-ro\ui-strings.js.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\pages-app\css\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\icons\time-span-16.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\cs-cz\ui-strings.js.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Common Files\System\msadc\fr-FR\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.XboxApp_2017.113.1250.0_neutral_~_8wekyb3d8bbwe\microsoft.system.package.metadata\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\exportpdfupsell-app\js\nls\it-it\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-heapdump_zh_CN.jar.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-uisupport.xml.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-pl.xrm-ms.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\Microsoft Office\Updates\Apply\FilesInUse\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.1.25002.0_neutral_~_8wekyb3d8bbwe\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.People_10.1.10531.0_x64__8wekyb3d8bbwe\_Resources\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\img\tools\circle_2x.png.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\winsdkfb\Images\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\win-scrollbar\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\hu-hu\ui-strings.js.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\Abbreviations\en_US\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-pl.xrm-ms.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\AccessRuntime_eula.txt.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\RTL\contrast-white\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.15.2003.0_x64__8wekyb3d8bbwe\Assets\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\en-ae\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\fr-fr\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-pl.xrm-ms.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected] 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\reflow.api.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\activity-badge\images\avatar.jpg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Windows NT\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\VideoLAN\VLC\locale\ach\LC_MESSAGES\vlc.mo.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\Windows Media Player\Icons\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsAlarms_10.1702.333.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\en_get.svg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer-select\js\nls\es-es\ui-strings.js.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Common Files\System\msadc\en-US\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\update_tracking\org-netbeans-modules-keyring-fallback.xml.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\ECHO\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsApps\Microsoft.Getstarted_4.5.6.0_x64__8wekyb3d8bbwe\Content\desktop\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\file_types\move.svg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_filterselected-dark-hover_32.svg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\zh-cn\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-pl.xrm-ms.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Templates\1033\RedAndBlackReport.dotx.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\de\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\ro-ro\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\zh-cn\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\jre\lib\security\cacerts.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTest-ppd.xrm-ms.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_sortedby_up_hover_18.svg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File created \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\js\nls\pt-br\README-FILE-JQKTJDNJ-1634889313.hta 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\fil_get.svg.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\modules\locale\org-netbeans-modules-sampler_ja.jar.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\vreg\osmuxmui.msi.16.en-us.vreg.dat.ATOMSILO 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of WriteProcessMemory 24 IoCs
Processes:
5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.execmd.exedescription pid process target process PID 1836 wrote to memory of 1444 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1444 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 2320 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 2320 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1820 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1820 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1580 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1580 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1624 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1624 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3108 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3108 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1972 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 1972 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3956 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3956 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3024 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3024 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3436 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 3436 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe mshta.exe PID 1836 wrote to memory of 2116 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe cmd.exe PID 1836 wrote to memory of 2116 1836 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe cmd.exe PID 2116 wrote to memory of 368 2116 cmd.exe PING.EXE PID 2116 wrote to memory of 368 2116 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe"C:\Users\Admin\AppData\Local\Temp\5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:1444
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:2320
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:1820
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:1580
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:1624
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:3108
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:1972
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:3956
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:3024
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C:\Windows\SYSTEM32\mshta.exemshta "C:\Users\Public\ATOMSILO-README.hta"2⤵PID:3436
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C:\Windows\SYSTEM32\cmd.execmd /c ping 127.0.0.1 -n 6 && del "C:\Users\Admin\AppData\Local\Temp\5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2116 -
C:\Windows\system32\PING.EXEping 127.0.0.1 -n 63⤵
- Runs ping.exe
PID:368
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
aa93d342bd0f81cc147de7a280e022b2
SHA1d6d2ae4def8fa1414faba0cdbc031b5919bb43f9
SHA256a87a80d452899f4c98aee55cefcce897faca567e8e9763ed20f41f7dc7b48071
SHA512aeed5f93daebbec7241719a6903e0463e9d204f699d317adb498c6262dbecf61d68b1f77f6ec369ee45fe703a849086fbd407247fb021350fcec6a8b0950f375