Analysis
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max time kernel
151s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
07-02-2024 14:37
Static task
static1
Behavioral task
behavioral1
Sample
Fast.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Fast.exe
Resource
win10v2004-20231215-en
General
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Target
Fast.exe
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Size
55KB
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MD5
ea6d3083f8c1c506fbff457bf09a7ed8
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SHA1
f159c4fc7d13571e725f0ae9e0749c77cf859b4e
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SHA256
000db71531e5aa8b30594d305bb3fbce8e2c71f66e2170091ef58b3c1f306f46
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SHA512
1167b9ebe03c399c5915394592f97ce60bd07e92f589a4a0d794255c7a9c46423dd28efbf96b45aab6a67763a20676627f35683cc6790bf1383c7f07b6e28405
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SSDEEP
1536:ENeRBl5PT/rx1mzwRMSTdLpJVIVAxN/0nVS12:EQRrmzwR5JiWxNIJ
Malware Config
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
Processes:
bcdedit.exebcdedit.exepid process 4232 bcdedit.exe 4208 bcdedit.exe -
Renames multiple (496) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Processes:
wbadmin.exepid process 2616 wbadmin.exe -
Modifies Windows Firewall 2 TTPs 2 IoCs
Processes:
netsh.exenetsh.exepid process 4076 netsh.exe 4288 netsh.exe -
Drops startup file 3 IoCs
Processes:
Fast.exedescription ioc process File created \??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\Fast.exe Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Fast.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini.id[5BD03E39-2803].[[email protected]].eight Fast.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
Processes:
Fast.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fast = "C:\\Users\\Admin\\AppData\\Local\\Fast.exe" Fast.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fast = "C:\\Users\\Admin\\AppData\\Local\\Fast.exe" Fast.exe -
Drops desktop.ini file(s) 64 IoCs
Processes:
Fast.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini Fast.exe File opened for modification C:\Program Files\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini Fast.exe File opened for modification C:\Program Files (x86)\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Fast.exe File opened for modification C:\Users\Public\Videos\desktop.ini Fast.exe File opened for modification C:\Users\Admin\3D Objects\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini Fast.exe File opened for modification C:\Users\Public\Music\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Links\desktop.ini Fast.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini Fast.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini Fast.exe File opened for modification C:\Users\Public\desktop.ini Fast.exe File opened for modification C:\$Recycle.Bin\S-1-5-21-3073191680-435865314-2862784915-1000\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Fast.exe File opened for modification C:\Users\Public\Libraries\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Fast.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini Fast.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini Fast.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3073191680-435865314-2862784915-1000\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini Fast.exe File opened for modification C:\Users\Admin\Music\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Fast.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Fast.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini Fast.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Fast.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Fast.exe -
Drops file in Program Files directory 64 IoCs
Processes:
Fast.exedescription ioc process File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\es\System.Windows.Forms.resources.dll Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\da-dk\ui-strings.js Fast.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\video_filter\libmagnify_plugin.dll Fast.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\FR_Back_Landscape_Med_1920x1080.jpg Fast.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroApp\ENU\Combine_R_RHP.aapp.id[5BD03E39-2803].[[email protected]].eight Fast.exe File created C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.181.5\msedgeupdateres_nb.dll.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Assets\Store\AppIcon.altform-unplated_targetsize-48.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\Square44x44Logo.targetsize-32.png Fast.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\Windows Defender\it-IT\shellext.dll.mui Fast.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\DataModel\Microsoft.Data.Odata.dll.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\pt-br\ui-strings.js Fast.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\ob-preview\images\themeless\redact_poster.jpg.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\js\nls\sk-sk\ui-strings.js Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\viewer\nls\ja-jp\ui-strings.js Fast.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\cy\LC_MESSAGES\vlc.mo Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\x86\msheif_store.dll Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.UI.Xaml.2.0_2.1810.18004.0_x64__8wekyb3d8bbwe\AppxManifest.xml Fast.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\GenericMailLargeTile.scale-100.png Fast.exe File created C:\Program Files\7-Zip\Lang\ps.txt.id[5BD03E39-2803].[[email protected]].eight Fast.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\lets-get-started.png.id[5BD03E39-2803].[[email protected]].eight Fast.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\zh-cn\ui-strings.js.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-white_targetsize-32.png Fast.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-process-l1-1-0.dll Fast.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.AdHoc.Shell.Bootstrapper.xap.id[5BD03E39-2803].[[email protected]].eight Fast.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\SATIN\SATIN.ELM.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-black\OneNoteSmallTile.scale-100.png Fast.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-black_targetsize-80.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-36_altform-unplated_contrast-black.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppValueProp.svg Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\duplicate.svg Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00.UWPDesktop_14.0.27629.0_x64__8wekyb3d8bbwe\vcamp140.dll Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\s_radio_selected_18.svg Fast.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\DEEPBLUE\PREVIEW.GIF.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Assets\Scientific.targetsize-24_contrast-black.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-24_altform-unplated.png Fast.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxA-Outlook.scale-400.png Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\en-ae\ui-strings.js Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\images\icons_ie8.gif Fast.exe File opened for modification C:\Program Files (x86)\Internet Explorer\es-ES\ieinstal.exe.mui Fast.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\pt-BR\System.Windows.Controls.Ribbon.resources.dll Fast.exe File created C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-black\MedTile.scale-400_contrast-black.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-48_altform-unplated_contrast-white.png Fast.exe File created C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-console-l1-2-0.dll.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\IDTemplates\ENU\DefaultID.pdf Fast.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msvcp140.dll Fast.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\uz\LC_MESSAGES\vlc.mo Fast.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-GoogleCloudCacheMini.scale-125.png Fast.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\zh-tw\ui-strings.js.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SplashScreen.scale-125_contrast-black.png Fast.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\System.AppContext.dll.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ppd.xrm-ms Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Runtime.WindowsRuntime.UI.Xaml.dll Fast.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\images\themes\dark\share_icons.png.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.DesktopAppInstaller_1.0.30251.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\AppPackageSplashScreen.scale-125.png Fast.exe File opened for modification C:\Program Files (x86)\Common Files\System\msadc\en-US\msadcer.dll.mui Fast.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.AdHoc.Excel.Client.dll.id[5BD03E39-2803].[[email protected]].eight Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Assets\GetStartedSplash.scale-100.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\Assets\contrast-white\PeopleAppList.targetsize-30_altform-lightunplated.png Fast.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\WorldClockSmallTile.contrast-white_scale-200.png Fast.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\EmptyCalendarSearch.scale-400.png Fast.exe -
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
vds.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 3272 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
Fast.exepid process 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe 4660 Fast.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
Processes:
Fast.exevssvc.exeWMIC.exewbengine.exedescription pid process Token: SeDebugPrivilege 4660 Fast.exe Token: SeBackupPrivilege 3868 vssvc.exe Token: SeRestorePrivilege 3868 vssvc.exe Token: SeAuditPrivilege 3868 vssvc.exe Token: SeIncreaseQuotaPrivilege 2688 WMIC.exe Token: SeSecurityPrivilege 2688 WMIC.exe Token: SeTakeOwnershipPrivilege 2688 WMIC.exe Token: SeLoadDriverPrivilege 2688 WMIC.exe Token: SeSystemProfilePrivilege 2688 WMIC.exe Token: SeSystemtimePrivilege 2688 WMIC.exe Token: SeProfSingleProcessPrivilege 2688 WMIC.exe Token: SeIncBasePriorityPrivilege 2688 WMIC.exe Token: SeCreatePagefilePrivilege 2688 WMIC.exe Token: SeBackupPrivilege 2688 WMIC.exe Token: SeRestorePrivilege 2688 WMIC.exe Token: SeShutdownPrivilege 2688 WMIC.exe Token: SeDebugPrivilege 2688 WMIC.exe Token: SeSystemEnvironmentPrivilege 2688 WMIC.exe Token: SeRemoteShutdownPrivilege 2688 WMIC.exe Token: SeUndockPrivilege 2688 WMIC.exe Token: SeManageVolumePrivilege 2688 WMIC.exe Token: 33 2688 WMIC.exe Token: 34 2688 WMIC.exe Token: 35 2688 WMIC.exe Token: 36 2688 WMIC.exe Token: SeIncreaseQuotaPrivilege 2688 WMIC.exe Token: SeSecurityPrivilege 2688 WMIC.exe Token: SeTakeOwnershipPrivilege 2688 WMIC.exe Token: SeLoadDriverPrivilege 2688 WMIC.exe Token: SeSystemProfilePrivilege 2688 WMIC.exe Token: SeSystemtimePrivilege 2688 WMIC.exe Token: SeProfSingleProcessPrivilege 2688 WMIC.exe Token: SeIncBasePriorityPrivilege 2688 WMIC.exe Token: SeCreatePagefilePrivilege 2688 WMIC.exe Token: SeBackupPrivilege 2688 WMIC.exe Token: SeRestorePrivilege 2688 WMIC.exe Token: SeShutdownPrivilege 2688 WMIC.exe Token: SeDebugPrivilege 2688 WMIC.exe Token: SeSystemEnvironmentPrivilege 2688 WMIC.exe Token: SeRemoteShutdownPrivilege 2688 WMIC.exe Token: SeUndockPrivilege 2688 WMIC.exe Token: SeManageVolumePrivilege 2688 WMIC.exe Token: 33 2688 WMIC.exe Token: 34 2688 WMIC.exe Token: 35 2688 WMIC.exe Token: 36 2688 WMIC.exe Token: SeBackupPrivilege 2284 wbengine.exe Token: SeRestorePrivilege 2284 wbengine.exe Token: SeSecurityPrivilege 2284 wbengine.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
Fast.execmd.execmd.exedescription pid process target process PID 4660 wrote to memory of 1644 4660 Fast.exe cmd.exe PID 4660 wrote to memory of 1644 4660 Fast.exe cmd.exe PID 4660 wrote to memory of 992 4660 Fast.exe cmd.exe PID 4660 wrote to memory of 992 4660 Fast.exe cmd.exe PID 1644 wrote to memory of 4076 1644 cmd.exe netsh.exe PID 1644 wrote to memory of 4076 1644 cmd.exe netsh.exe PID 992 wrote to memory of 3272 992 cmd.exe vssadmin.exe PID 992 wrote to memory of 3272 992 cmd.exe vssadmin.exe PID 1644 wrote to memory of 4288 1644 cmd.exe netsh.exe PID 1644 wrote to memory of 4288 1644 cmd.exe netsh.exe PID 992 wrote to memory of 2688 992 cmd.exe WMIC.exe PID 992 wrote to memory of 2688 992 cmd.exe WMIC.exe PID 992 wrote to memory of 4232 992 cmd.exe bcdedit.exe PID 992 wrote to memory of 4232 992 cmd.exe bcdedit.exe PID 992 wrote to memory of 4208 992 cmd.exe bcdedit.exe PID 992 wrote to memory of 4208 992 cmd.exe bcdedit.exe PID 992 wrote to memory of 2616 992 cmd.exe wbadmin.exe PID 992 wrote to memory of 2616 992 cmd.exe wbadmin.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\Fast.exe"C:\Users\Admin\AppData\Local\Temp\Fast.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Fast.exe"C:\Users\Admin\AppData\Local\Temp\Fast.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
3File Deletion
3Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id[5BD03E39-2803].[[email protected]].eightFilesize
3.2MB
MD509a3d18e2b4de978bce46473f21fb152
SHA1a66dc6e01fbd57e0792d0ef116354c8c76ca450a
SHA2568cd30fa441f8e09acb9961225c39f0412b321d9dd8166a5d290e35e05571ae0c
SHA512dde026c2492f3f722e7c4e66d324856611b4cab48af0c939a3dbe2b918353ac436ebc4a7e12d36468c453ee8a04e517530dd7c87cb0092be0c182e91d0363139