62862a4c988effae378b18b7f4c3e250c7593d4e448bb0757e7e088bd80b1576

General

Target

c.exe
Size

19KB
MD5

2f209bf174d0959960fbab2900131ecc
SHA1

b11f0a4832d5872bfce08d93bdd36bdd158b104b
SHA256

62862a4c988effae378b18b7f4c3e250c7593d4e448bb0757e7e088bd80b1576
SHA512

28758ddfd1b7e788a851b564722181a80f5d0bad5a42bf4d0f6575e89a6fa28812fd9bd3c2d4ab791c43a45b55bb4cae739a482cab8135e773bae83c2daca915

Score

9^/10

ransomware persistence

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

508 vssadmin.exe

pid	process
508	vssadmin.exe

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

vssvc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Drops file in Program Files directory 11232 IoCs

Processes:

c.exe

description	ioc	process
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	c.exe
File created	C:\Program Files\Microsoft Office\root\Office16\STARTUP\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-bg_highlight-soft_75_ffe45c_1x100.png.enc	c.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.ZuneMusic_10.16112.11621.0_neutral_resources.scale-200_8wekyb3d8bbwe\Assets\contrast-white\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Assets\Images\expression_picker_tab_placeholder.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\mo_60x42.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2017.125.40.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.contrast-white_targetsize-96.png.enc	c.exe
File created	C:\Program Files\Java\jdk1.8.0_66\jre\lib\jvm.hprof.txt.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\Toolkit\Images\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.16112.11621.0_neutral_resources.scale-150_8wekyb3d8bbwe\Assets\contrast-white\MusicStoreLogo.scale-150_contrast-white.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsAppList.scale-100.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\CoreEngine\Data\3DBrush\brush_bristles.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteAppList.targetsize-30_altform-unplated.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.511.8780.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-30_altform-fullcolor.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.targetsize-48.png.enc	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\LinkedInboxWideTile.scale-125.png.enc	c.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\S_IlluCCFilesEmpty_180x180.svg.enc	c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\GRPHFLT\MS.JPG	c.exe
File created	C:\Program Files\Common Files\microsoft shared\Triedit\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\VideoLAN\VLC\locale\gl\LC_MESSAGES\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Getstarted_4.5.6.0_x64__8wekyb3d8bbwe\Assets\GetStartedWideTile.scale-100_contrast-black.png.enc	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\1850_40x40x32.png.enc	c.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_filterselected-dark-down_32.svg	c.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fur.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_1.4.101.0_x64__8wekyb3d8bbwe\Assets\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2017.125.40.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\StoreLogo.contrast-white_scale-100.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2017.125.40.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\StoreLogo.scale-100.png.enc	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\2818_40x40x32.png.enc	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\GenericMailLargeTile.scale-400.png.enc	c.exe
File created	C:\Program Files\WindowsPowerShell\Modules\Microsoft.PowerShell.Operation.Validation\1.0.1\Test\Modules\Example2.Diagnostics\1.0.1\Diagnostics\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Assets\AppTiles\LiveTile\W2.png.enc	c.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\STRTEDGE\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\STUDIO\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Car\LTR\SmallTile.scale-125.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.18.56.0_x64__8wekyb3d8bbwe\Assets\AppTiles\Weather_LogoSmall.scale-200.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_neutral_split.scale-150_8wekyb3d8bbwe\Assets\starttile.smile.small.scale-150.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\small\smirk.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.511.8780.0_neutral_split.scale-100_8wekyb3d8bbwe\Lumia.ViewerPlugin\Assets\IconEditRichCapture.contrast-white_scale-100.png.enc	c.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-140.png	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxA-Yahoo-Dark.scale-100.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\LiveTiles\OfflineMapsWide.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.16112.11621.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-96.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.511.8780.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-256_altform-fullcolor.png.enc	c.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\LTR\contrast-white\LargeTile.scale-125.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Arkadium.Win10.DailyChallenges\Assets\Popups\FUE2_Image_4.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\contrast-black\OneNoteSectionGroupLargeTile.scale-150.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2017.125.40.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.targetsize-256.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Car\RTL\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11701.1001.87.0_x64__8wekyb3d8bbwe\UX\Controls\Decrypt Instructions.txt	c.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-icons_ef8c08_256x240.png	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Jumbo\mask\cardback.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\sr-cyrl-cs\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubSplashWideTile.scale-200_contrast-white.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\_Resources\index.txt.enc	c.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Western\mask\1s.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteSectionGroupSmallTile.scale-100.png.enc	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\5313_48x48x32.png.enc	c.exe
File created	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\OutlookIconFirstRunCalendar.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SplashScreen.scale-100_contrast-black.png.enc	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.10252.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageAppList.targetsize-72_contrast-white.png.enc	c.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\Images\Ratings\yelplogo.scale-125.png.enc	c.exe
File created	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Place\Decrypt Instructions.txt	c.exe
File created	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\manifestAssets\contrast-white\Decrypt Instructions.txt	c.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

c.exe

description pid process target process

PID 3544 wrote to memory of 508 3544 c.exe vssadmin.exe
PID 3544 wrote to memory of 508 3544 c.exe vssadmin.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1012 vssvc.exe
Token: SeRestorePrivilege 1012 vssvc.exe
Token: SeAuditPrivilege 1012 vssvc.exe

description	pid	process	target process
PID 3544 wrote to memory of 508	3544	c.exe	vssadmin.exe
PID 3544 wrote to memory of 508	3544	c.exe	vssadmin.exe

description	pid	process
Token: SeBackupPrivilege	1012	vssvc.exe
Token: SeRestorePrivilege	1012	vssvc.exe
Token: SeAuditPrivilege	1012	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\c.exe
"C:\Users\Admin\AppData\Local\Temp\c.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3544