Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01/10/2024, 02:49
Static task
static1
Behavioral task
behavioral1
Sample
aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe
Resource
win10v2004-20240802-en
General
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Target
aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe
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Size
2.3MB
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MD5
1c13427a7ddc829218e0edf6e4423130
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SHA1
1fbe3c26ec2d3fbeb2cf51ae94bf9251b796bdb1
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SHA256
aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139
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SHA512
a2e59bedbda23c95c4aa4ee1024de618cb86c17c1017bd3c775e3df05389f57027fef142be115b91124f9b9759f19296646b01c95720d2a3037dbf7a06c63de3
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SSDEEP
49152:Bjvk2d9rJpNJ6jUFdXaDoIHmXMupzh72lxakn2YpHdy4ZBgIoooNe:BrkI9rSjA5aDo73pzF2bz3p9y4HgIoov
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/0x00070000000234bb-11.dat acprotect -
Executes dropped EXE 2 IoCs
pid Process 3900 ctfmen.exe 4772 smnss.exe -
Loads dropped DLL 2 IoCs
pid Process 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 4772 smnss.exe -
Reads user/profile data of web browsers 3 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" aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" smnss.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) \??\M: smnss.exe File opened (read-only) \??\P: smnss.exe File opened (read-only) \??\X: smnss.exe File opened (read-only) \??\H: smnss.exe File opened (read-only) \??\L: smnss.exe File opened (read-only) \??\O: smnss.exe File opened (read-only) \??\U: smnss.exe File opened (read-only) \??\V: smnss.exe File opened (read-only) \??\K: smnss.exe File opened (read-only) \??\Q: smnss.exe File opened (read-only) \??\R: smnss.exe File opened (read-only) \??\S: smnss.exe File opened (read-only) \??\T: smnss.exe File opened (read-only) \??\W: smnss.exe File opened (read-only) \??\G: smnss.exe File opened (read-only) \??\I: smnss.exe File opened (read-only) \??\J: smnss.exe File opened (read-only) \??\N: smnss.exe File opened (read-only) \??\E: 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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\1 smnss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\1 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe -
Drops file in System32 directory 64 IoCs
description ioc Process File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSXPS2.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\SysWOW64\MSDRM\MsoIrmProtector.doc smnss.exe File created C:\Windows\SysWOW64\ctfmen.exe aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe File opened for modification C:\Windows\SysWOW64\shervans.dll aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe File created C:\Windows\SysWOW64\smnss.exe aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSPWGR.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\System32\DriverStore\FileRepository\prnms003.inf_amd64_0e2452f597790e95\Amd64\unishare-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms008.inf_amd64_69b5e0c918eab9a6\Amd64\unishare3d-pipelineconfig.xml smnss.exe File created C:\Windows\SysWOW64\grcopy.dll aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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 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\prnms014.inf_amd64_faec3fc366f8e1fa\Amd64\MSMPS.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\SysWOW64\ctfmen.exe aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe File created C:\Windows\SysWOW64\smnss.exe 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\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\System32\DriverStore\FileRepository\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSPassthrough-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\prnms009.inf_amd64_a7412a554c9bc1fd\MPDW-PDC.xml smnss.exe File opened for modification C:\Windows\SysWOW64\MailContactsCalendarSync\LiveDomainList.txt smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\ja-JP\default.help.txt 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\SysWOW64\Speech_OneCore\Common\en-US\tokens_TTS_en-US.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\de-DE\default.help.txt smnss.exe File created C:\Windows\SysWOW64\zipfi.dll smnss.exe File opened for modification C:\Windows\SysWOW64\AppxProvisioning.xml smnss.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\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\WindowsPowerShell\v1.0\en-US\default.help.txt 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\System32\DriverStore\FileRepository\prnms009.inf_amd64_a7412a554c9bc1fd\MPDW_devmode_map.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\SysWOW64\F12\Timeline.cpu.xml smnss.exe File opened for modification C:\Windows\SysWOW64\wbem\xsl-mappings.xml smnss.exe File created C:\Windows\SysWOW64\shervans.dll aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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\System32\DriverStore\FileRepository\prnms011.inf_amd64_f83138380f5fb6ab\Amd64\MSAppMon.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\ipcfg.xml smnss.exe File opened for modification C:\Windows\SysWOW64\IME\IMEJP\APPLETS\IMJPCLST.XML smnss.exe File opened for modification C:\Windows\SysWOW64\Speech_OneCore\Common\tokens.xml 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\prnms011.inf_amd64_f83138380f5fb6ab\Amd64\MSAppMon-pipelineconfig.xml smnss.exe File opened for modification C:\Windows\SysWOW64\icsxml\cmnicfg.xml smnss.exe File opened for modification C:\Windows\SysWOW64\NdfEventView.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\grcopy.dll aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe File opened for modification C:\Windows\SysWOW64\WindowsCodecsRaw.txt smnss.exe File opened for modification C:\Windows\SysWOW64\wsmanconfig_schema.xml smnss.exe File created C:\Windows\SysWOW64\satornas.dll aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe File opened for modification C:\Windows\SysWOW64\satornas.dll aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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\Speech_OneCore\Common\en-US\tokens_TTS_en-US_david.xml smnss.exe File opened for modification C:\Windows\SysWOW64\WindowsPowerShell\v1.0\fr-FR\default.help.txt smnss.exe File created C:\Windows\SysWOW64\zipfiaq.dll smnss.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\prnms010.inf_amd64_9e410195c3b236c9\Amd64\MSECP.xml smnss.exe File opened for modification C:\Windows\System32\DriverStore\FileRepository\tsprint.inf_amd64_6066bc96a5f28b44\tsprint-PipelineConfig.xml smnss.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
pid Process 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe 4772 smnss.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL002.XML smnss.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\offset_window.html smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\th-TH\View3d\3DViewerProductDescription-universal.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.513.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_2019.19071.19011.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\co.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\nl.txt smnss.exe File opened for modification C:\Program Files\dotnet\LICENSE.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MANIFEST.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.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Third Party Notices.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Orange.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Cambria.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Excel.Excel.x-none.msi.16.x-none.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\LISTS\1033\PHONE.XML smnss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsSoundRecorder_10.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_2019.807.41.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsrom.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0409-1000-0000000FF1CE.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\C2RManifest.powerpointmui.msi.16.en-us.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PG_INDEX.XML smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-200_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml 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\ipskor.xml smnss.exe File opened for modification C:\Program Files\VideoLAN\VLC\NEWS.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.People_10.1902.633.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.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\Microsoft Office\root\Document Themes 16\Theme Colors\Aspect.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\ClientPreview_eula.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\fil-PH\View3d\3DViewerProductDescription-universal.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\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\ExcelMessageDismissal.txt smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_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\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\CT_ROOTS.XML smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-150_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\lv-LV\View3d\3DViewerProductDescription-universal.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ScreenSketch_10.1907.2471.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxManifest.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fa.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sw.txt smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipssrl.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\PackageManifests\AppXManifestLoc.16.en-us.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\af-ZA\View3d\3DViewerProductDescription-universal.xml smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WebviewOffline.html smnss.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\TypeSupport\Unicode\Mappings\win\CP1250.TXT smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ar.txt smnss.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav\osknavbase.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSIPC\ThirdPartyNotices.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL107.XML smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-150_8wekyb3d8bbwe\AppxBlockMap.xml smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\Client2019_eula.txt smnss.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL044.XML smnss.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\en-us\onenote_whatsnew.xml smnss.exe -
Drops file in Windows directory 64 IoCs
description ioc Process File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..econsumer.resources_31bf3856ad364e35_10.0.19041.1_ja-jp_9a7ce02ef73966bb\Rules.System.Performance.xml smnss.exe File opened for modification C:\Windows\PLA\Rules\Rules.System.NetTrace.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\core\view\oobe-chrome-breadcrumb-template.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_it-it_2fceb6f1060351fa\pdferrorofflineaccessdenied.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-s..settings-searchdata_31bf3856ad364e35_10.0.19041.1266_none_02712bcc4c459e88\f\AllSystemSettings_{253E530E-387D-4BC2-959D-E6F86122E5F2}.xml smnss.exe File opened for modification C:\Windows\Installer\$PatchCache$\Managed\68AB67CA7DA73301B744CAF070E41400\15.7.20033\CP1253.TXT smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\cache\Desktop\AppCacheMetadata.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\retailDemoAdvancedInclusive.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..econsumer.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_0e2f6adb2cec6f62\Rules.System.Network.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-s..iencehost.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_52fbb1b86a870614\f\AppxBlockMap.xml smnss.exe File opened for modification C:\Windows\PLA\Rules\fr-FR\Rules.System.Network.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\es-ES\assets\ErrorPages\http_404.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\RetailDemo\retailDemoShutdowns.html smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.OOBENetworkConnectionFlow_cw5n1h2txyewy\speech\0c09\tokens_enAU.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_es-es_a2ef4aab3bff561a\http_410.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_it-it_2fceb6f1060351fa\hstscerterror.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_ja-jp_d1f435fdf91e63d5\defaultbrowser.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..iondialog.appxsetup_31bf3856ad364e35_10.0.19041.1_none_a029d8a7ac063705\AppxBlockMap.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-userexperience-desktop_31bf3856ad364e35_10.0.19041.173_none_6486f23c2831aaf3\r\AppxManifest.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..iencehost.appxsetup_31bf3856ad364e35_10.0.19041.1266_none_12ea08a0c4f345b0\AppxBlockMap.xml 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.Common.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\fr-FR\assets\ErrorPages\defaultbrowser.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\ja-JP\assets\ErrorPages\DisableAboutFlag.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.CapturePicker_cw5n1h2txyewy\AppxManifest.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-audiodiagnostic_31bf3856ad364e35_10.0.19041.1_none_767880898f16fada\AudioPlaybackDiagnostic.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_b4fc93ef208f3edb\502.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..econsumer.resources_31bf3856ad364e35_10.0.19041.1_de-de_c2bbc1ff4b155b96\Rules.System.Finale.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-xbox-gamecallableui.appxsetup_31bf3856ad364e35_10.0.19041.1_none_38b4bf057e9fa0fb\AppxBlockMap.xml smnss.exe File opened for modification C:\Windows\diagnostics\index\MaintenanceDiagnostic.xml smnss.exe File opened for modification C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Windows\Shell\DefaultLayouts.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\it-IT\assets\ErrorPages\defaultbrowser.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\it-IT\assets\ErrorPages\http_403.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.Windows.PeopleExperienceHost_cw5n1h2txyewy\AppxManifest.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_es-es_12451df02dbd2879\404-6.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_es-es_12451df02dbd2879\413-1.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_b4fc93ef208f3edb\500-16.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-w..d-line-utility-base_31bf3856ad364e35_10.0.19041.1_none_c3bcdca562bead16\xsl-mappings.xml smnss.exe File opened for modification C:\Windows\PLA\Reports\de-DE\Report.System.Performance.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-a..ep-chxapp.appxsetup_31bf3856ad364e35_10.0.19041.1_none_bea84556e2412b76\appxmanifest.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-editions-professional_31bf3856ad364e35_10.0.19041.264_none_ba5e4a287945a683\EditionMappings.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_de-de_fa3317ce4cfa58b0\http_410.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-ncsiuwpapp.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_757b1fb62148c452\f\AppxManifest.xml smnss.exe File opened for modification C:\Windows\WinSxS\wow64_microsoft-windows-p..standardportmonitor_31bf3856ad364e35_10.0.19041.1_none_640c4e1ead013a38\tcpbidi.xml smnss.exe File opened for modification C:\Windows\diagnostics\index\SearchDiagnostic.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_en-us_1279c10c2d9636d4\404-1.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-t..nputpersonalization_31bf3856ad364e35_10.0.19041.1_none_f59d207965b1bbc3\ipssrb.xml smnss.exe File opened for modification C:\Windows\PLA\Reports\fr-FR\Report.System.Common.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\es-ES\assets\ErrorPages\forbidframingedge.htm smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\fr-FR\assets\OfflineTabs\OfflineTabs.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_hyperv-containerlicense_31bf3856ad364e35_10.0.19041.1_none_0b9d42260da91e9d\License.txt smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\roamingDisambiguation.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-dxp-deviceexperience_31bf3856ad364e35_10.0.19041.1_none_fd1639479924c51c\resource.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_it-it_9f248a35f7c12459\404-5.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_ja-jp_d1f435fdf91e63d5\pdferrorrenewrentallicense.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-s..e.desktop.searchapp_31bf3856ad364e35_10.0.19041.1_none_43fe9f4e368e081f\AppCacheMetadata.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_hyperv-vmchipset_31bf3856ad364e35_10.0.19041.153_none_b32940cfeb827fac\VmChipset Third-Party Notices.txt smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-p..econsumer.resources_31bf3856ad364e35_10.0.19041.1_ja-jp_9a7ce02ef73966bb\Rules.System.Memory.xml smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windowsdx..xperience.resources_31bf3856ad364e35_10.0.19041.1_es-es_a1b656cabdd9b487\resource.xml smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\it-IT\assets\ErrorPages\navcancl.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_es-es_a2ef4aab3bff561a\pdferrormfnotfound.html smnss.exe File opened for modification C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\ja-JP\assets\ErrorPages\http_400.htm smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.1266_none_777e4c5802d14c18\f\oobelocalaccount-main.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_45a6c0aa2ed16c7c\LearnMore.html smnss.exe File opened for modification C:\Windows\WinSxS\amd64_microsoft-windows-n..uickstart.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_c81408a27d1805ca\f\AppxBlockMap.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 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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" aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED} aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4772 smnss.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 4772 smnss.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2316 wrote to memory of 3900 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 82 PID 2316 wrote to memory of 3900 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 82 PID 2316 wrote to memory of 3900 2316 aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe 82 PID 3900 wrote to memory of 4772 3900 ctfmen.exe 83 PID 3900 wrote to memory of 4772 3900 ctfmen.exe 83 PID 3900 wrote to memory of 4772 3900 ctfmen.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.exe"C:\Users\Admin\AppData\Local\Temp\aa970436c9b932434079dff74f3749d44d758a83d21315b3cf43a72e6928f139N.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:2316 -
C:\Windows\SysWOW64\ctfmen.exectfmen.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900 -
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:4772
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
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Filesize
4KB
MD559caf59233644cda2841b7d1389d7759
SHA140e394151b2cc9edcd4f785ab6f3dcf6ae2589af
SHA2566f3ceeb780a635f6e1df1fd7fe99a995aeb246cedd0f03a99965301bb5304bf5
SHA51297aa7d890bc82bdcdb6ee321ed2aaea48bad76a9c325b590ab5dc591255eb15871ae6934532b54157eb32c732986f3196a63f2fd1fb274bcfb112550eaa87b7f
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Filesize
2.3MB
MD590b1ed3a7c75c4abf39eec6682ac7f64
SHA1bf294958035876133ca6f1228524e1fd9b76d2a3
SHA2561e3edd7b1039be0d2d99be63eff4456493f0779ef024686d590aca06bf0b7ea5
SHA512aa73d82f9bbe9c483fb1988e41eea3d1441b4ed88523386c9a70b4f1db1fef2ae94cf031786dad3aa92a8fa5871e28b349f7b2e17f68ceb6dd53c9aa62c2e2a5
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Filesize
183B
MD5a2029cebd02ae2a9785fee3740b75518
SHA15b814657fd0a377d57a94276ae2994291701bd2b
SHA256ac6fdb052f5fa19333e33b010c7778f9e0a08081d38cfc697bc05d741fc99a67
SHA512d4a0bfb69b7e34b5f722c9cec7cebe0c783e387caceadffff791a4123d99a9cdfd7ffd54661ccb0ca9b56b3e9989e68d58d39cdcec15c93e03138c2bec264ca8
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Filesize
8KB
MD561a3f5f649dbb54dfef2d37f130f74f9
SHA16726c1cb82f4942d80ca6825a7ba5e2e4bad3a76
SHA25663298cb555cc397a45de22c9128abc810dfdf1649cc4fc5e203294df138a60b5
SHA51270ba02c989e2b84ce3fa61e60e932d5af7e6da21184c561e5f76d919c0c2955f00f056dc62b56f7080b5392a873cff7fff7a8090598df78d8cc9835ca48958ab