Analysis
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max time kernel
150s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
01-03-2024 09:13
Static task
static1
Behavioral task
behavioral1
Sample
Trojan.Win32.DelShad.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Trojan.Win32.DelShad.exe
Resource
win10v2004-20240226-en
General
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Target
Trojan.Win32.DelShad.exe
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Size
1.0MB
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MD5
055d1462f66a350d9886542d4d79bc2b
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SHA1
f1086d2f667d807dbb1aa362a7a809ea119f2565
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SHA256
dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0
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SHA512
2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1
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SSDEEP
24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2
Malware Config
Extracted
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
coronavirus@qq.com
Signatures
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Identifies DHARMA ransomware 8 IoCs
Processes:
resource yara_rule behavioral2/memory/3608-2-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_aa5eefed behavioral2/memory/3608-2-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_b31cac3f behavioral2/memory/3608-2-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_e9319e4a behavioral2/memory/3608-2-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_942142e3 behavioral2/memory/3608-16651-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_aa5eefed behavioral2/memory/3608-16651-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_b31cac3f behavioral2/memory/3608-16651-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_e9319e4a behavioral2/memory/3608-16651-0x0000000000400000-0x000000000056F000-memory.dmp Windows_Ransomware_Dharma_942142e3 -
Renames multiple (501) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Trojan.Win32.DelShad.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation Trojan.Win32.DelShad.exe -
Drops startup file 5 IoCs
Processes:
Trojan.Win32.DelShad.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Trojan.Win32.DelShad.exe Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Trojan.Win32.DelShad.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta Trojan.Win32.DelShad.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 3 IoCs
Processes:
Trojan.Win32.DelShad.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Trojan.Win32.DelShad.exe = "C:\\Windows\\System32\\Trojan.Win32.DelShad.exe" Trojan.Win32.DelShad.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C:\Windows\System32\Info.hta = "mshta.exe \"C:\\Windows\\System32\\Info.hta\"" Trojan.Win32.DelShad.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C:\Users\Admin\AppData\Roaming\Info.hta = "mshta.exe \"C:\\Users\\Admin\\AppData\\Roaming\\Info.hta\"" Trojan.Win32.DelShad.exe -
Drops desktop.ini file(s) 64 IoCs
Processes:
Trojan.Win32.DelShad.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\Downloads\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Music\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\$Recycle.Bin\S-1-5-21-566096764-1992588923-1249862864-1000\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\3D Objects\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Links\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\Music\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\Documents\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn1\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini Trojan.Win32.DelShad.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-566096764-1992588923-1249862864-1000\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Public\Libraries\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Trojan.Win32.DelShad.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini Trojan.Win32.DelShad.exe -
Drops file in System32 directory 2 IoCs
Processes:
Trojan.Win32.DelShad.exedescription ioc process File created C:\Windows\System32\Trojan.Win32.DelShad.exe Trojan.Win32.DelShad.exe File created C:\Windows\System32\Info.hta Trojan.Win32.DelShad.exe -
Drops file in Program Files directory 64 IoCs
Processes:
Trojan.Win32.DelShad.exedescription ioc process File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-32_contrast-black.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightItalic.ttf.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\images\icons.png.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\it-it\ui-strings.js.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-32_altform-lightunplated.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_2020.1906.55.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\images\themes\dark\illustrations.png.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\EVRGREEN\EVRGREEN.INF.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe Trojan.Win32.DelShad.exe File created C:\Program Files\Java\jdk-1.8\legal\javafx\glib.md.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.25\zh-Hans\System.Windows.Input.Manipulations.resources.dll Trojan.Win32.DelShad.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\ko-kr\ui-strings.js.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\exportpdfupsell-app\js\nls\sl-si\ui-strings.js Trojan.Win32.DelShad.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\Playstore\tr_get.svg.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\api-ms-win-crt-environment-l1-1-0.dll.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\SATIN\THMBNAIL.PNG.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\sendforsignature.svg.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-phn.xrm-ms.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\cs-cz\ui-strings.js.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessEntry2019R_PrepidBypass-ppd.xrm-ms Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-multibyte-l1-1-0.dll Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\css\mobile.css Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\index.html Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-125_8wekyb3d8bbwe\AppxBlockMap.xml Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\StopwatchMedTile.contrast-black_scale-200.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\scanAppLogo.png Trojan.Win32.DelShad.exe File created C:\Program Files\VideoLAN\VLC\lua\playlist\vimeo.luac.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\System.ComponentModel.Primitives.dll.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-bg_flat_10_000000_40x100.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherImages\423x173\2.jpg Trojan.Win32.DelShad.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\images\themes\dark\rhp_world_icon.png.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\generic-rhp-app\js\nls\ui-strings.js Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\ResiliencyLinks\Trust Protection Lists\Mu\Entities.DATA Trojan.Win32.DelShad.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Grace-ul-oob.xrm-ms.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\System.Xml.XDocument.dll.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteSectionGroupWideTile.scale-200.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\BadgeLogo.scale-125.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\eula.dll Trojan.Win32.DelShad.exe File created C:\Program Files\Microsoft Office\root\Client\vcruntime140.dll.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-pl.xrm-ms.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial1-pl.xrm-ms.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\vstoee90.tlb.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxCalendarAppList.scale-100.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-48_altform-unplated.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\animations\OneNoteFRE_Welcome.mp4 Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Locales\as.pak Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\js\nls\fi-fi\ui-strings.js Trojan.Win32.DelShad.exe File created C:\Program Files\VideoLAN\VLC\hrtfs\dodeca_and_7channel_3DSL_HRTF.sofa.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\Voices\beeps\common.lua Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Trial-pl.xrm-ms.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\viewer\nls\fi-fi\ui-strings.js.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\ko\UIAutomationProvider.resources.dll Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-memory-l1-1-0.dll Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\scan-2x.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\de\System.Web.Entity.Design.Resources.dll Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\AFTRNOON\PREVIEW.GIF.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\LinkedInboxBadge.scale-400.png Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\ext\meta-index Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\tracked-send\js\plugins\tracked-send\js\nls\zh-cn\ui-strings.js Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Web Server Extensions\16\BIN\FPSRVUTL.DLL.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\nacl_irt_x86_64.nexe.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File created C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN075.XML.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.0\tr\Microsoft.VisualBasic.Forms.resources.dll.id-AB1C4528.[coronavirus@qq.com].ncov Trojan.Win32.DelShad.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxCalendarWideTile.scale-100.png Trojan.Win32.DelShad.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid process 9700 vssadmin.exe 6524 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
Trojan.Win32.DelShad.exepid process 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe 3608 Trojan.Win32.DelShad.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 5820 vssvc.exe Token: SeRestorePrivilege 5820 vssvc.exe Token: SeAuditPrivilege 5820 vssvc.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
Trojan.Win32.DelShad.execmd.execmd.exedescription pid process target process PID 3608 wrote to memory of 448 3608 Trojan.Win32.DelShad.exe cmd.exe PID 3608 wrote to memory of 448 3608 Trojan.Win32.DelShad.exe cmd.exe PID 448 wrote to memory of 7128 448 cmd.exe mode.com PID 448 wrote to memory of 7128 448 cmd.exe mode.com PID 448 wrote to memory of 9700 448 cmd.exe vssadmin.exe PID 448 wrote to memory of 9700 448 cmd.exe vssadmin.exe PID 3608 wrote to memory of 5640 3608 Trojan.Win32.DelShad.exe cmd.exe PID 3608 wrote to memory of 5640 3608 Trojan.Win32.DelShad.exe cmd.exe PID 5640 wrote to memory of 6256 5640 cmd.exe mode.com PID 5640 wrote to memory of 6256 5640 cmd.exe mode.com PID 5640 wrote to memory of 6524 5640 cmd.exe vssadmin.exe PID 5640 wrote to memory of 6524 5640 cmd.exe vssadmin.exe PID 3608 wrote to memory of 6688 3608 Trojan.Win32.DelShad.exe mshta.exe PID 3608 wrote to memory of 6688 3608 Trojan.Win32.DelShad.exe mshta.exe PID 3608 wrote to memory of 6964 3608 Trojan.Win32.DelShad.exe mshta.exe PID 3608 wrote to memory of 6964 3608 Trojan.Win32.DelShad.exe mshta.exe -
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\Trojan.Win32.DelShad.exe"C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.DelShad.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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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\mode.commode con cp select=12513⤵
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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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\mode.commode con cp select=12513⤵
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\mshta.exe"C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"2⤵
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C:\Windows\System32\mshta.exe"C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"2⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe.id-AB1C4528.[coronavirus@qq.com].ncovFilesize
2.9MB
MD5dae66f78be8ae785091f92562ef33163
SHA12ebbf27fdc06141cea87c0667ecaa1d6fd3103b3
SHA2562484d78b33ee4956b97cf6108e84f58bf792265c678e4b312bd5299f0ed5870a
SHA51289735a1828b7dfab82928e59f163f93eee80b43f4ec5e2acb2edfc400b9f36c1ca61462bd32ee6044122ffaa1659e818daf4a16456d3f9bbdf34549f5060e5f1
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C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.htaFilesize
13KB
MD5fc6329d4a01193048435bab11c4dad11
SHA1c3535b9674dc14ceefe4ff4339345ae9c77063f3
SHA2568656f9588050c16df8a64ed1f16c8900e68efe57cfebbcef7890338f3b4a9a65
SHA51299c179121fde3f799f4a26e55d1730dd3b0dce1d0f1595270054c341ee04ae0df109f5cd2b70150093fd1ddb68730e76cfe924e92fb4e6968720421aae07c3a3
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memory/3608-0-0x0000000000400000-0x000000000056F000-memory.dmpFilesize
1.4MB
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memory/3608-1-0x000000000ADB0000-0x000000000ADE4000-memory.dmpFilesize
208KB
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memory/3608-2-0x0000000000400000-0x000000000056F000-memory.dmpFilesize
1.4MB
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memory/3608-16651-0x0000000000400000-0x000000000056F000-memory.dmpFilesize
1.4MB
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memory/3608-23777-0x000000000ADB0000-0x000000000ADE4000-memory.dmpFilesize
208KB