Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240730-en -
resource tags
arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system -
submitted
01-08-2024 21:21
Static task
static1
Behavioral task
behavioral1
Sample
043f5e81bfdadd137e8ed9d7af9071b0N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
043f5e81bfdadd137e8ed9d7af9071b0N.exe
Resource
win10v2004-20240730-en
General
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Target
043f5e81bfdadd137e8ed9d7af9071b0N.exe
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Size
2.3MB
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MD5
043f5e81bfdadd137e8ed9d7af9071b0
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SHA1
11d3544ced96e144d634850c5ffaae78cacb395a
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SHA256
ad227a9586e5a3f7a685e5a68fdd2f956afd8b44de3c0986ba25e00f68b443ef
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SHA512
2bdefad1d698b6e0fdd63035f97e58b162ac22db7d7af47ceb3a887d0d5f60b04b0200d91cbd2291bd16825a221e112fd2506e6dae5f90a5d0d38c86c9b8b9ec
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SSDEEP
49152:yjvk2d9rJpNJ6jUFdXaDoIHmXMupzh72lxakn2YpHdy4ZBgIoooNe:yrkI9rSjA5aDo73pzF2bz3p9y4HgIoov
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\drivers\gmreadme.txt smnss.exe -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x00080000000234c5-11.dat acprotect -
Executes dropped EXE 2 IoCs
pid Process 3612 ctfmen.exe 3252 smnss.exe -
Loads dropped DLL 2 IoCs
pid Process 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 3252 smnss.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" smnss.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" 043f5e81bfdadd137e8ed9d7af9071b0N.exe -
Enumerates connected drives 3 TTPs 19 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: smnss.exe File opened (read-only) \??\H: smnss.exe File opened (read-only) \??\I: smnss.exe File opened (read-only) \??\M: smnss.exe File opened (read-only) \??\O: smnss.exe File opened (read-only) \??\U: smnss.exe File opened (read-only) \??\J: smnss.exe File opened (read-only) \??\K: smnss.exe File opened (read-only) \??\V: smnss.exe File opened (read-only) \??\X: smnss.exe File opened (read-only) \??\L: smnss.exe File opened (read-only) \??\N: smnss.exe File opened (read-only) \??\P: smnss.exe File opened (read-only) \??\Q: smnss.exe File opened (read-only) \??\S: smnss.exe File opened (read-only) \??\W: smnss.exe File opened (read-only) \??\E: smnss.exe File opened (read-only) \??\R: smnss.exe File opened (read-only) \??\T: smnss.exe -
Maps connected drives based on registry 3 TTPs 6 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\1 smnss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\1 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 smnss.exe -
Drops file in System32 directory 64 IoCs
description ioc Process File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms009.inf_amd64_a7412a554c9bc1fd\MPDW-PDC.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms012.inf_amd64_707d3849370b9d23\Amd64\MSIPP.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms003.inf_amd64_0e2452f597790e95\Amd64\unishare-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\ipcfg.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\it-IT\default.help.txt smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms001.inf_amd64_8bc1bda6cf47380c\MXDW-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSXPS2.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\potscfg.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\pppcfg.xml smnss.exe File created C:\Windows\SysWOW64\zipfi.dll smnss.exe File created C:\Windows\SysWOW64\smnss.exe smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms003.inf_x86_360f6f3a7c4b3433\I386\unishare-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSPassthrough-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc smnss.exe File created C:\Windows\SysWOW64\shervans.dll 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\SysWOW64\grcopy.dll 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\SysWOW64\satornas.dll 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms008.inf_amd64_69b5e0c918eab9a6\Amd64\unishare3d-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms009.inf_amd64_a7412a554c9bc1fd\MPDW_devmode_map.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms011.inf_amd64_f83138380f5fb6ab\Amd64\MSAppMon.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\tsprint.inf_amd64_6066bc96a5f28b44\tsprint-PipelineConfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\Speech_OneCore\Common\en-US\tokens_TTS_en-US.xml smnss.exe File opened for modification C:\Windows\SysWOW64\F12\Timeline.cpu.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\cmnicfg.xml smnss.exe File opened for modification C:\Windows\SysWOW64\MailContactsCalendarSync\LiveDomainList.txt smnss.exe File opened for modification C:\Windows\SysWOW64\Speech_OneCore\Common\en-US\Tokens_SR_en-US-N.xml smnss.exe File opened for modification C:\Windows\SysWOW64\shervans.dll 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms010.inf_amd64_9e410195c3b236c9\Amd64\MSECP.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms014.inf_amd64_faec3fc366f8e1fa\Amd64\MSMPS-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\osinfo.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsCodecsRaw.txt smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms004.inf_amd64_c28ee88ec1bd4178\Amd64\unisharev4-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\NdfEventView.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\de-DE\default.help.txt smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\fr-FR\default.help.txt smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms005.inf_amd64_add71423ba73e797\Amd64\MSxpsPS-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms009.inf_amd64_a7412a554c9bc1fd\MPDW-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\IME\IMEJP\APPLETS\IMJPCLST.XML smnss.exe File opened for modification C:\Windows\SysWOW64\wbem\xsl-mappings.xml smnss.exe File created C:\Windows\SysWOW64\grcopy.dll 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\ntprint4.inf_amd64_0958c7cad3cd6075\Amd64\V3HostingFilter-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSPWGR.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\es-ES\default.help.txt smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\ja-JP\default.help.txt smnss.exe File created C:\Windows\SysWOW64\smnss.exe 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\SysWOW64\AppxProvisioning.xml smnss.exe File opened for modification C:\Windows\SysWOW64\Recovery\ReAgent.xml smnss.exe File opened for modification C:\Windows\SysWOW64\tcpbidi.xml smnss.exe File opened for modification C:\Windows\SysWOW64\wsmanconfig_schema.xml smnss.exe File created C:\Windows\SysWOW64\satornas.dll 043f5e81bfdadd137e8ed9d7af9071b0N.exe File created C:\Windows\SysWOW64\zipfiaq.dll smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSPWGR-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms010.inf_amd64_9e410195c3b236c9\Amd64\MSECP-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms012.inf_amd64_707d3849370b9d23\Amd64\MSIPP-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\Speech_OneCore\Common\en-US\tokens_TTS_en-US_david.xml smnss.exe File created C:\Windows\SysWOW64\ctfmen.exe 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms006.inf_amd64_c3bdcb6fc975b614\SendToOneNote-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms011.inf_amd64_f83138380f5fb6ab\Amd64\MSAppMon-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms014.inf_amd64_faec3fc366f8e1fa\Amd64\MSMPS.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\en-US\default.help.txt smnss.exe File opened for modification C:\Windows\SysWOW64\ctfmen.exe 043f5e81bfdadd137e8ed9d7af9071b0N.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms005.inf_amd64_add71423ba73e797\Amd64\MSxpsPCL6-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms005.inf_amd64_add71423ba73e797\Amd64\MSxpsXPS-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\Speech_OneCore\Common\tokens.xml smnss.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
pid Process 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe 3252 smnss.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\ClientLangPack_eula.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\ClientVolumeLicense_eula.txt smnss.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\mobile_browse.html smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Paint_PDP.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00_14.0.27323.0_x64__8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\Abbreviations\en_GB\List.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ga.txt smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\loc\AppXManifestLoc.16.en-us.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OSM.OSM.x-none.msi.16.x-none.xml smnss.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\vlm.html smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_2020.1906.55.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\msedge.VisualElementsManifest.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\C2RManifest.office32ww.msi.16.x-none.xml smnss.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.VisualElementsManifest.xml smnss.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\stream_window.html smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_2019.125.2243.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files (x86)\Windows Media Player\Media Renderer\avtransport.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL111.XML smnss.exe File opened for modification C:\Program Files (x86)\Windows Media Player\Media Renderer\connectionmanager_dmr.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-006E-0409-1000-0000000FF1CE.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\ThinAppXManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00_14.0.27323.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\gl.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\ar-SA\View3d\3DViewerProductDescription-universal.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\RedistList\FrameworkList.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ms.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\AccessRuntime_eula.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x86__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\PhotosApp\Assets\ThirdPartyNotices\ThirdPartyNotices.html smnss.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\Dictionaries\en_US\README_en_US.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.Resource\Xbox.Smartglass.Loc.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0409-1000-0000000FF1CE.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Slipstream.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ZuneMusic_10.19071.19011.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\ms-MY\View3d\3DViewerProductDescription-universal.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\ClientOSub2019_eula.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000049\manifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\StoreRating\StoreRatingRules.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\en-us\CT_ROOTS.XML smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ug.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0000-1000-0000000FF1CE.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OneNote.OneNote.x-none.msi.16.x-none.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCamera_2018.826.98.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\Alphabet.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL093.XML smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\keypadbase.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\officeinventoryagentfallback.xml smnss.exe File opened for modification C:\Program Files\Windows NT\TableTextService\TableTextServiceYi.txt smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\symbase.xml smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsptb.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCalculator_10.1906.55.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\uk-UA\View3d\3DViewerProductDescription-universal.xml smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\oskmenubase.xml smnss.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\requests\playlist.xml smnss.exe -
Drops file in Windows directory 64 IoCs
description ioc Process File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.1266_none_777e4c5802d14c18\oobeoemregistration-main.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-hvsi-service-shared_31bf3856ad364e35_10.0.19041.1_none_3cfd44d351b1a8ab\HvsiMachinePolicies_ContainerCreate.xml smnss.exe File opened for modification C:\Windows\PLA\Rules\ja-JP\Rules.System.Wireless.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\de-DE\assets\ApplicationGuard\LearnMore.html smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\it-IT\assets\ErrorPages\unknownprotocol.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\BingConfiguration\BingConfiguration_en-GB.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-a..gement-uevtemplates_31bf3856ad364e35_10.0.19041.1_none_0d66b54875835a49\MicrosoftOffice2016Win32.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\default.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-printing-fdprint_31bf3856ad364e35_10.0.19041.1_none_0e211e3b24a05820\behavior.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-o..tiveportal.appxmain_31bf3856ad364e35_10.0.19041.423_none_204af7ff19532470\tokens_enUS.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-provisioning-core_31bf3856ad364e35_10.0.19041.153_none_95ba73d08e5f739c\CountryTable.xml smnss.exe File opened for modification C:\Windows\PLA\Reports\de-DE\Report.System.Configuration.xml smnss.exe File opened for modification C:\Windows\PLA\Reports\de-DE\Report.System.Network.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\it-IT\assets\ErrorPages\BlockSite.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_es-es_a2ef4aab3bff561a\LearnMore.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-o..tiveportal.appxmain_31bf3856ad364e35_10.0.19041.423_none_204af7ff19532470\tokens_enCA.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-o..tiveportal.appxmain_31bf3856ad364e35_10.0.19041.423_none_204af7ff19532470\tokens_enIN.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_es-es_12451df02dbd2879\431.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..olsclient.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_fe9996dc5d311970\r\AppxManifest.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\AppxManifest.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\fr-FR\assets\ErrorPages\pdferrorquitapplicationguard.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..iser-inboxdatafiles_31bf3856ad364e35_10.0.19041.1_none_276764d7804d3bad\Appraiser_TelemetryRunList.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\common-header-template.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..raries-servercommon_31bf3856ad364e35_10.0.19041.906_none_87b019d7cebd66d4\r\ASPNET_schema.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_de-de_6988eb133eb82b0f\404-9.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-microsoftedge_31bf3856ad364e35_10.0.19041.264_none_ef195f564f00d259\BlockSite.htm smnss.exe File opened for modification C:\Windows\WaaS\services\ceb497ee0184aaa4681d2fb2ef242a5b8551eea8.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_dual_prnms012.inf_31bf3856ad364e35_10.0.19041.1_none_a3feabb281faa7e4\Amd64\MSIPP-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-hvsi-service-shared_31bf3856ad364e35_10.0.19041.1151_none_fbdc4c5f677dc2ec\HvsiMachinePolicies_ContainerRealtime.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoftwindows-un..keddevkit.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_c9d08284ca03f3d7\r\AppxManifest.xml smnss.exe File opened for modification C:\Windows\diagnostics\index\NetworkDiagnostics_1_Web.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_it-it_2fceb6f1060351fa\proxyerror.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-o..documents.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_6ae61beebd6b13dd\oobe_learn_more_activity_history.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-o..ectionflow.appxmain_31bf3856ad364e35_10.0.19041.1_none_e2e6c013142b9760\tokens_enCA.xml smnss.exe File opened for modification C:\Windows\PLA\Rules\es-ES\Rules.System.CPU.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\ja-JP\assets\ErrorPages\http_410.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.1266_none_777e4c5802d14c18\roamingDisambiguation.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..rymanager.appxsetup_31bf3856ad364e35_10.0.19041.1_none_36471647c08c8a19\AppxManifest.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-dot3svc.resources_31bf3856ad364e35_10.0.19041.1_ja-jp_ebd9ffd49454da2e\Report.System.Wired.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_ja-jp_414a0942eadc3634\401-2.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-s..e.desktop.searchapp_31bf3856ad364e35_10.0.19041.1_none_43fe9f4e368e081f\12.txt smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_b4fc93ef208f3edb\404.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_de-de_fa3317ce4cfa58b0\dnserror.html smnss.exe File opened for modification C:\Windows\PLA\Reports\es-ES\Report.System.Configuration.xml smnss.exe File opened for modification C:\Windows\PLA\Rules\it-IT\Rules.System.Disk.xml smnss.exe File opened for modification C:\Windows\servicing\Editions\IoTEnterpriseEdition.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\fr-FR\assets\ErrorPages\http_410.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.OOBENetworkConnectionFlow_cw5n1h2txyewy\speech\1009\tokens_enCA.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_b4fc93ef208f3edb\403-19.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-tabletpc-softkeyboard_31bf3856ad364e35_10.0.19041.746_none_afaafac6b02c16fa\osknav.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_it-it_9f248a35f7c12459\403-14.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-s..e.desktop.searchapp_31bf3856ad364e35_10.0.19041.1_none_43fe9f4e368e081f\14.txt smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\webapps\unifiedEnrollment\views\unifiedEnrollmentDiscovery.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.1266_none_777e4c5802d14c18\localAccount.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_45a6c0aa2ed16c7c\pdferrorofflineaccessdenied.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-microsoftedge_31bf3856ad364e35_10.0.19041.264_none_ef195f564f00d259\pdferror.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..econsumer.resources_31bf3856ad364e35_10.0.19041.1_de-de_c2bbc1ff4b155b96\Report.System.Disk.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-userexperience-desktop_31bf3856ad364e35_10.0.19041.173_none_6486f23c2831aaf3\f\AppxManifest.xml smnss.exe File opened for modification C:\Windows\PLA\Rules\es-ES\Rules.System.Finale.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.OOBENetworkConnectionFlow_cw5n1h2txyewy\speech\0409\tokens_enUS.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_dual_prnms005.inf_31bf3856ad364e35_10.0.19041.1_none_1eab1be1d38e5678\Amd64\MSxpsPS-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..rastructureconsumer_31bf3856ad364e35_10.0.19041.1_none_69cd9c22cfcf9358\Report.System.Diagnostics.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-s..iguration.searchapp_31bf3856ad364e35_10.0.19041.1_none_6a5e909ee80bfce7\BingConfiguration_de-DE.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-t..nputpersonalization_31bf3856ad364e35_10.0.19041.1_none_f59d207965b1bbc3\ipsid.xml smnss.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ctfmen.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language smnss.exe -
Modifies registry class 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" 043f5e81bfdadd137e8ed9d7af9071b0N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" smnss.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID 043f5e81bfdadd137e8ed9d7af9071b0N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED} 043f5e81bfdadd137e8ed9d7af9071b0N.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3252 smnss.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 3252 smnss.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4444 wrote to memory of 3612 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 86 PID 4444 wrote to memory of 3612 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 86 PID 4444 wrote to memory of 3612 4444 043f5e81bfdadd137e8ed9d7af9071b0N.exe 86 PID 3612 wrote to memory of 3252 3612 ctfmen.exe 87 PID 3612 wrote to memory of 3252 3612 ctfmen.exe 87 PID 3612 wrote to memory of 3252 3612 ctfmen.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\043f5e81bfdadd137e8ed9d7af9071b0N.exe"C:\Users\Admin\AppData\Local\Temp\043f5e81bfdadd137e8ed9d7af9071b0N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4444 -
C:\Windows\SysWOW64\ctfmen.exectfmen.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3612 -
C:\Windows\SysWOW64\smnss.exeC:\Windows\system32\smnss.exe3⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3252
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
MD55a01f31744970b48c4b133d34bcf1eba
SHA11f8d9c118918b191215341924b9531ca275c56eb
SHA256f769a502df3a059917b79cc1f06ec36802857eb538ef791ea43ec8a0d1597fed
SHA5126e0ab460f117017cfa09391e77868b3e968a32ac12bb8e09fad650613aeef6d2c8f9984713a4f2645ce88dea8c15543e850980dcd7607896018ad3cfb26c674c
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Filesize
2.3MB
MD54655681dcfd03b65cd6fc8b4d9cd6e60
SHA17f438e6af6cc667059dee8225217d4133d8944d7
SHA256106d51d3b6a97dff12bb4aab581d7774b09caae61f3df27f7f1253182abf4a76
SHA512759898cb181814bcbbb036c1c00b4fe3a8d4f42577088a2ccec07c1ae77e63b0d674972724386e050fba044d8ec6b3c5241395039182a4d36d31742197d2dac0
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Filesize
183B
MD5f23a270417a6936ca2a71a5f9cf765a8
SHA126ae651699c821ffb2dd0c380c202e11b1a8063b
SHA25623cefc4f6dd08ec894afdce5f69ce1a4fdc2edfaf5e37ac6aa9a5a7a4953ccf7
SHA512ba2c80eec6efc83d8c3264966dda6319a0ce1e4134c9c019777bb316260bb1984225ac118c1f47ea296169b634fb653369f7f8f2c54a3520dd5a890362d4d2bf
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Filesize
8KB
MD59b9427df1401bdd83ddbf144a33fb81d
SHA1a34178b97514cb889b6ea131b7af8a970622d1d5
SHA256cb2dbdbf8357527f225be5e63ff3dc08d60a32443a6cc018d12f4e0f90e1ad0d
SHA5122cc2529cf4c85a456b192dbd49220c74dd7de141fe14ee85c9bbbe60f89e4b9cbe17fa85a3d22ca61b3aa36f932af734cf2065a260c5d847e4904373d1b93331