a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c

General

Target

a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Size

119KB
MD5

7740b754a71d19c0679918c3d919f53a
SHA1

328a59eb7705d6a6df37863eff366d7014bcf533
SHA256

a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c
SHA512

9f18e7612d4cc242bec6880b19e823794426a6f927cbdb2751fd9c17d1aa96350b40d5ea903f4848a1d84f8a5bf0112caf5bab0257b6759fcbe5510985c1abe4
SSDEEP

3072:jOjWuyt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPh:jIs9OKofHfHTXQLzgvnzHPowYbvrjD/E

Score

9^/10

persistence spyware stealer

Malware Config

Signatures

UPX dump on OEP (original entry point) 12 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3004-0-0x0000000000400000-0x0000000000420000-memory.dmp	UPX
C:\Windows\SysWOW64\shervans.dll	UPX
C:\Windows\SysWOW64\grcopy.dll	UPX
behavioral2/memory/3004-16-0x0000000010000000-0x000000001000D000-memory.dmp	UPX
C:\Windows\SysWOW64\ctfmen.exe	UPX
behavioral2/memory/3004-22-0x0000000000400000-0x0000000000420000-memory.dmp	UPX
behavioral2/memory/3004-23-0x0000000010000000-0x000000001000D000-memory.dmp	UPX
behavioral2/memory/1672-24-0x0000000000400000-0x0000000000409000-memory.dmp	UPX
behavioral2/memory/1672-29-0x0000000000400000-0x0000000000409000-memory.dmp	UPX
behavioral2/memory/384-30-0x0000000000400000-0x0000000000420000-memory.dmp	UPX
behavioral2/memory/384-38-0x0000000010000000-0x000000001000D000-memory.dmp	UPX
behavioral2/memory/384-41-0x0000000000400000-0x0000000000420000-memory.dmp	UPX

Drops file in Drivers directory 1 IoCs

Processes:

smnss.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\drivers\gmreadme.txt smnss.exe

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.

Processes:

resource	yara_rule
C:\Windows\SysWOW64\shervans.dll	acprotect

Executes dropped EXE 2 IoCs

Processes:

ctfmen.exesmnss.exe

pid process

1672 ctfmen.exe
384 smnss.exe
Loads dropped DLL 2 IoCs

Processes:

a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exesmnss.exe

pid process

3004 a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
384 smnss.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
1672	ctfmen.exe
384	smnss.exe

pid	process
3004	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
384	smnss.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exesmnss.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe"	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.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.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

smnss.exe

description	ioc	process
File opened (read-only)	\??\L:	smnss.exe
File opened (read-only)	\??\M:	smnss.exe
File opened (read-only)	\??\O:	smnss.exe
File opened (read-only)	\??\P:	smnss.exe
File opened (read-only)	\??\V:	smnss.exe
File opened (read-only)	\??\X:	smnss.exe
File opened (read-only)	\??\E:	smnss.exe
File opened (read-only)	\??\G:	smnss.exe
File opened (read-only)	\??\N:	smnss.exe
File opened (read-only)	\??\Q:	smnss.exe
File opened (read-only)	\??\S:	smnss.exe
File opened (read-only)	\??\K:	smnss.exe
File opened (read-only)	\??\R:	smnss.exe
File opened (read-only)	\??\U:	smnss.exe
File opened (read-only)	\??\H:	smnss.exe
File opened (read-only)	\??\I:	smnss.exe
File opened (read-only)	\??\J:	smnss.exe
File opened (read-only)	\??\T:	smnss.exe
File opened (read-only)	\??\W:	smnss.exe

Maps connected drives based on registry 3 TTPs 6 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

smnss.exea0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe

description	ioc	process
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	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\1	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	smnss.exe

Drops file in System32 directory 64 IoCs

Processes:

smnss.exea0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe

description	ioc	process
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\icsxml\pppcfg.xml	smnss.exe
File created	C:\Windows\SysWOW64\satornas.dll	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.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\System32\DriverStore\FileRepository\prnms005.inf_amd64_add71423ba73e797\Amd64\MSxpsPCL6-pipelineconfig.xml	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\wbem\xsl-mappings.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\grcopy.dll	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
File opened for modification	C:\Windows\SysWOW64\AppxProvisioning.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\ctfmen.exe	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.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\MailContactsCalendarSync\LiveDomainList.txt	smnss.exe
File opened for modification	C:\Windows\SysWOW64\Speech_OneCore\Common\tokens.xml	smnss.exe
File opened for modification	C:\Windows\SysWOW64\tcpbidi.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\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\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\System32\DriverStore\FileRepository\prnms004.inf_amd64_c28ee88ec1bd4178\Amd64\unisharev4-pipelineconfig.xml	smnss.exe
File created	C:\Windows\SysWOW64\smnss.exe	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\System32\DriverStore\FileRepository\tsprint.inf_amd64_6066bc96a5f28b44\tsprint-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\WindowsPowerShell\v1.0\fr-FR\default.help.txt	smnss.exe
File created	C:\Windows\SysWOW64\zipfi.dll	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\wsmanconfig_schema.xml	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\prnms003.inf_amd64_0e2452f597790e95\Amd64\unishare-pipelineconfig.xml	smnss.exe
File created	C:\Windows\SysWOW64\ctfmen.exe	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.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\SysWOW64\Speech_OneCore\Common\en-US\tokens_TTS_en-US.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\prnms003.inf_x86_360f6f3a7c4b3433\I386\unishare-pipelineconfig.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\prnms007.inf_amd64_8bbf44975c626ac5\Amd64\MSPWGR.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\cmnicfg.xml	smnss.exe
File opened for modification	C:\Windows\SysWOW64\WindowsCodecsRaw.txt	smnss.exe
File opened for modification	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\de-DE\default.help.txt	smnss.exe
File created	C:\Windows\SysWOW64\grcopy.dll	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
File opened for modification	C:\Windows\SysWOW64\satornas.dll	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.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\icsxml\ipcfg.xml	smnss.exe
File created	C:\Windows\SysWOW64\smnss.exe	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
File opened for modification	C:\Windows\SysWOW64\WindowsPowerShell\v1.0\es-ES\default.help.txt	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\prnms010.inf_amd64_9e410195c3b236c9\Amd64\MSECP.xml	smnss.exe
File opened for modification	C:\Windows\SysWOW64\NdfEventView.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\shervans.dll	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
File opened for modification	C:\Windows\SysWOW64\Recovery\ReAgent.xml	smnss.exe
File opened for modification	C:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc	smnss.exe
File created	C:\Windows\SysWOW64\zipfiaq.dll	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\prnms008.inf_amd64_69b5e0c918eab9a6\Amd64\unishare3d-pipelineconfig.xml	smnss.exe
File opened for modification	C:\Windows\SysWOW64\icsxml\osinfo.xml	smnss.exe
File opened for modification	C:\Windows\SysWOW64\icsxml\potscfg.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\WindowsPowerShell\v1.0\ja-JP\default.help.txt	smnss.exe
File created	C:\Windows\SysWOW64\shervans.dll	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe

Drops file in Program Files directory 64 IoCs

Processes:

smnss.exe

description	ioc	process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN102.XML	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\ha-Latn-NG\View3d\3DViewerProductDescription-universal.xml	smnss.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\MLModels\autofill_labeling_features_email.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\el.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\hy.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\kk.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer2019_eula.txt	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Configuration\ssn_high_group_info.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL010.XML	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL118.XML	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\PersonaSpy.html	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL092.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\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\manifests\BuiltinPageTemplates.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ko.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_jpn.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_WHATSNEW.XML	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\fa-IR\View3d\3DViewerProductDescription-universal.xml	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.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	smnss.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\TypeSupport\Unicode\Mappings\win\CP1253.TXT	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ast.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\si.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Garamond-TrebuchetMs.xml	smnss.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\dialogs\stream_config_window.html	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-040C-1000-0000000FF1CE.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Corbel.xml	smnss.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\requests\vlm.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\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__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\kk-KZ\View3d\3DViewerProductDescription-universal.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\et.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\Office Setup Controller\Office.en-us\BRANDING.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\browse_window.html	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 (x86)\Adobe\Acrobat Reader DC\Resource\TypeSupport\Unicode\Mappings\Mac\CYRILLIC.TXT	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Schoolbook.xml	smnss.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\requests\vlm_cmd.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\gl-ES\View3d\3DViewerProductDescription-universal.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\ja-JP\View3d\3DViewerProductDescription-universal.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mng2.txt	smnss.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME-JAVAFX.txt	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\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\manifests\BuiltinFormsMathQuiz.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_2019.716.2316.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.officemuiset.msi.16.en-us.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\LyncBasic_Eula.txt	smnss.exe
File opened for modification	C:\Program Files\Windows Media Player\Media Renderer\connectionmanager_dmr.xml	smnss.exe
File opened for modification	C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\SupplementalDictionaries\en_US\Excluded.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_security_terms_dict.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN111.XML	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsSoundRecorder_10.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\en-us\View3d\3DViewerProductDescription-universal.xml	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nb.txt	smnss.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sa.txt	smnss.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ThirdPartyNotices.MSHWLatin.txt	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Office 2007 - 2010.xml	smnss.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Yellow.xml	smnss.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\AppxManifest.xml	smnss.exe

Drops file in Windows directory 64 IoCs

Processes:

smnss.exe

description	ioc	process
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-m..oolsclient.appxmain_31bf3856ad364e35_10.0.19041.1_none_75cd350cc8b5dbcf\console.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-microsoftedge_31bf3856ad364e35_10.0.19041.264_none_ef195f564f00d259\OfflineTabs.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_netfx4-attributionfile_b03f5f7f11d50a3a_4.0.15805.0_none_763fb8d053feb31c\ThirdPartyNotices.txt	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\BingConfiguration\BingConfiguration_fr-CA.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-dot3svc_31bf3856ad364e35_10.0.19041.1081_none_e049f4a228a31cca\Report.System.Wired.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-o..documents.resources_31bf3856ad364e35_10.0.19041.1_de-de_1f727312db940011\OOBE_HELP_Opt_in_Details.htm	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-p..rastructureconsumer_31bf3856ad364e35_10.0.19041.1_none_69cd9c22cfcf9358\Rules.System.Finale.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-s..p.desktop.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_278c03d4cb0b9781\AppxBlockMap.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-t..nputpersonalization_31bf3856ad364e35_10.0.19041.746_none_1da55dc225237a0d\ipscsy.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-tabletpc-softkeyboard_31bf3856ad364e35_10.0.19041.746_none_afaafac6b02c16fa\keypad.xml	smnss.exe
File opened for modification	C:\Windows\diagnostics\index\AudioPlaybackDiagnostic.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\webapps\inclusiveOobe\view\oobesettings-multipage-main.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.1266_none_777e4c5802d14c18\oobe-footer-template.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-d..eexplorer.appxsetup_31bf3856ad364e35_10.0.19041.1023_none_03d7aa1083b7645d\r\AppxManifest.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-hvsi-service-shared_31bf3856ad364e35_10.0.19041.1_none_3cfd44d351b1a8ab\AuditPol_ContainerRealtime.xml	smnss.exe
File opened for modification	C:\Windows\PLA\Reports\de-DE\Report.System.NetDiagFramework.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.OOBENetworkCaptivePortal_cw5n1h2txyewy\speech\0407\tokens_deDE.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_en-us_1279c10c2d9636d4\500-16.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-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_en-us_a323edc73bd86475\dnserror.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-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_uk-ua_cd2d1cde69f392b4\http_404.htm	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-tabletpc-softkeyboard_31bf3856ad364e35_10.0.19041.173_none_af877ec0b0472fde\keypad.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\oobe-footer-template.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_en-us_1279c10c2d9636d4\404-2.htm	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\DefaultSettings.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_b4fc93ef208f3edb\403-9.htm	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_de-de_fa3317ce4cfa58b0\invalidcert.htm	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-o..ectionflow.appxmain_31bf3856ad364e35_10.0.19041.1_none_e2e6c013142b9760\tokens_frCA.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\Rules\en-US\Rules.System.Network.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\webapps\inclusiveSspr\view\ssprerror-main.html	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.OOBENetworkConnectionFlow_cw5n1h2txyewy\speech\0c0c\tokens_frCA.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-s..iencehost.appxsetup_31bf3856ad364e35_10.0.19041.1_none_941508ae54c02087\AppxBlockMap.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\webapps\inclusiveOobe\view\templates\oobe-textinput-template.html	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\cache\Desktop\25.txt	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\tokens_esMX.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_de-de_6988eb133eb82b0f\403-18.htm	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_uk-ua_cd2d1cde69f392b4\pdferrordisabledforregion.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-n..sh-helper-extension_31bf3856ad364e35_10.0.19041.746_none_976088a560b9aba7\NetTrace.PLA.Diagnostics.xml	smnss.exe
File opened for modification	C:\Windows\PLA\Rules\en-US\Rules.System.Wired.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\ja-JP\assets\ApplicationGuard\LearnMore.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft.configci.commands_31bf3856ad364e35_10.0.19041.1_none_62e8771482490eb6\AllowAll.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-t..nputpersonalization_31bf3856ad364e35_10.0.19041.1_none_f59d207965b1bbc3\ipsfin.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-tabletpc-softkeyboard_31bf3856ad364e35_10.0.19041.173_none_af877ec0b0472fde\base_altgr.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-m..osoftedge.resources_31bf3856ad364e35_10.0.19041.1_uk-ua_cd2d1cde69f392b4\WpcBlockFrame.htm	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\PLA\Rules\it-IT\Rules.System.Common.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-c..riencehost.appxmain_31bf3856ad364e35_10.0.19041.117_none_e0d32848ac56114e\backstack-chrome-breadcrumb-template.html	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-d..anagement-container_31bf3856ad364e35_10.0.19041.1_none_dc8438e1679872b4\PolicyManagerHvsiSettingProvider.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-management-oobe_31bf3856ad364e35_10.0.19041.207_none_504b6becabbef9fe\oobeautopilotupdate-main.html	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\amd64_microsoft-windows-t..nputpersonalization_31bf3856ad364e35_10.0.19041.746_none_1da55dc225237a0d\Content.xml	smnss.exe
File opened for modification	C:\Windows\PLA\Reports\ja-JP\Report.System.Wireless.xml	smnss.exe
File opened for modification	C:\Windows\PLA\Rules\de-DE\Rules.System.Wired.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\views\tokenManagerErrorHandler.html	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\BingConfiguration\BingConfiguration_pt-BR.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_dual_prnms007.inf_31bf3856ad364e35_10.0.19041.1_none_70cec824c55a4876\Amd64\MSPWGR.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-coresystem-wpr_31bf3856ad364e35_10.0.19041.746_none_4028b8f4f6c0b829\wpr.config.xml	smnss.exe
File opened for modification	C:\Windows\WinSxS\amd64_microsoft-windows-i..sbinaries.resources_31bf3856ad364e35_10.0.19041.1_de-de_6988eb133eb82b0f\401-4.htm	smnss.exe
File opened for modification	C:\Windows\diagnostics\index\NetworkDiagnostics_6_DA.xml	smnss.exe
File opened for modification	C:\Windows\PLA\Reports\Report.System.Performance.xml	smnss.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\ja-JP\assets\ErrorPages\http_501.htm	smnss.exe

Modifies registry class 6 IoCs

Processes:

a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exesmnss.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll"	smnss.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

smnss.exe

description pid process

Token: SeDebugPrivilege 384 smnss.exe

description	pid	process
Token: SeDebugPrivilege	384	smnss.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exectfmen.exe

description	pid	process	target process
PID 3004 wrote to memory of 1672	3004	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe	ctfmen.exe
PID 3004 wrote to memory of 1672	3004	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe	ctfmen.exe
PID 3004 wrote to memory of 1672	3004	a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe	ctfmen.exe
PID 1672 wrote to memory of 384	1672	ctfmen.exe	smnss.exe
PID 1672 wrote to memory of 384	1672	ctfmen.exe	smnss.exe
PID 1672 wrote to memory of 384	1672	ctfmen.exe	smnss.exe

C:\Users\Admin\AppData\Local\Temp\a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe
"C:\Users\Admin\AppData\Local\Temp\a0f858788b6f02e5040cf78227e507b4829a146aa05d8099ede2ceada155da9c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3004

C:\Windows\SysWOW64\ctfmen.exe
ctfmen.exe
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\smnss.exe
C:\Windows\system32\smnss.exe
3⤵
- 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
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\ctfmen.exe

Filesize
4KB

MD5
9a6fff27ad6ee39df2459fe030934bef

SHA1
8e5ebe1c2c7715da795475f7124108ee40f3c31f

SHA256
7a818a86867b8cedb0f87847d86dbea1523c53ad1f247f5d02294609c527e35f

SHA512
833c1bb0c05f3ee8315ab3fa22fb671e3b0641c768427aef7caf838010e54e16290be4f5aabb6a169cb17bcff3cc873dbe02397ac7ce36822901da62788b9f32

Download Submit
C:\Windows\SysWOW64\grcopy.dll

Filesize
119KB

MD5
b14789f00325df02db3dd4db270a0429

SHA1
c529ab032a40a0a78e9e89c228b22f57ff05b649

SHA256
6a36be38b92d77b34b87d27f6b9e899e2ca6b2c11703051eb0c06f31035b5ca2

SHA512
c018361c31b3512dba70113aef41052e788d7148228aa4a43bdd76a780641b02ba155c04015d795866bb38bcd94aff21b91864fa0ca27712141661c97dfdc586

Download Submit
C:\Windows\SysWOW64\satornas.dll

Filesize
183B

MD5
f9c2771199becbb3ecfdf791eb45c885

SHA1
6e0d9caa40613bbd078792501d68219a06c71dec

SHA256
6a9d16202b158d3050b24b0ee5ed7f46001d9079e26616b118c8a3a653c7e936

SHA512
b16ed1093abd7438ad5cea7f852af57fccf233fecccd5267196caad95d5c401b35a33825e480b3c368ac64eced33e7cdf45304d1aafa8c79ec4bada6cd2976b3

Download Submit
C:\Windows\SysWOW64\shervans.dll

Filesize
8KB

MD5
5d6e138dcf5e35f938f7b3de36a47d88

SHA1
f485cf8a481f3f5653c4ca86a69a9df9c7e62f2c

SHA256
3271108bd280ea360b3b8887a75b0e36a089ced31bba2fdf9e314c7177997665

SHA512
8ff7c8ddbb32f37fc1dbdd2fb737906d9f38e5b8e3a97460bcb64f4d6db713e46b37a111df0fc2d3ae7fa5dfd2c6db585f492292867c9f173b6278061dac34a4

Download Submit
memory/384-30-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/384-41-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/384-38-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/1672-24-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1672-29-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3004-16-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/3004-23-0x0000000010000000-0x000000001000D000-memory.dmp

Filesize
52KB

Download
memory/3004-22-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3004-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads