Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20220331-en -
submitted
11/04/2022, 09:34
Static task
static1
Behavioral task
behavioral1
Sample
13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll
Resource
win10v2004-20220331-en
windows10-2004_x64
0 signatures
0 seconds
General
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Target
13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll
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Size
219KB
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MD5
ecce8845921a91854ab34bff2623151e
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SHA1
736a4cfad1ed83a6a0b75b0474d5e01a3a36f950
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SHA256
13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033
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SHA512
36fda34df70629d054a55823a3cc83f9599446b36576fbc86a6aac6564460789e8b141eeb168d3e4578f28182da874dd840e57b642af1a1a315dfe08a17b53e0
Score
6/10
Malware Config
Signatures
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Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-1082102374-1487407228-1886994731-1000\desktop.ini rundll32.exe File opened for modification C:\Program Files\desktop.ini rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI rundll32.exe File opened for modification C:\Program Files (x86)\desktop.ini rundll32.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\D: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 rundll32.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxMailBadge.scale-100.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\_Resources\20.rsrc rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\node_modules\reactxp-experimental-navigation\NavigationExperimental\assets\[email protected] rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\S_IlluNoInternetConnection_120x80.svg rundll32.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\w2k_lsa_auth.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ul-oob.xrm-ms rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\cookie_exporter.exe rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Resources\GetSMDL2.ttf rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\Assets\contrast-black\MixedRealityPortalAppList.targetsize-80_altform-unplated_contrast-black.png rundll32.exe File opened for modification C:\Program Files\VideoLAN\VLC\plugins\audio_filter\libspatializer_plugin.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\Square150x150Logo.scale-100.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\Assets\contrast-white\MixedRealityPortalAppList.targetsize-256_altform-unplated_contrast-white.png rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\APASixthEditionOfficeOnline.xsl rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-200_8wekyb3d8bbwe\AppxManifest.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\SmartSelect\RemoveStroke_Illustration.png rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\zh-tw\ui-strings.js rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Shell\Themes\Glyphs\Font\MSNMDL2.ttf rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageAppList.targetsize-30_contrast-white.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\contrast-white\BadgeLogo.scale-125_contrast-white.png rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_checkbox_unselected_18.svg rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\contrast-black\LargeTile.scale-400_contrast-black.png rundll32.exe File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\Examples\Calculator\Add-Numbers.Tests.ps1 rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_download_audit_report_18.svg rundll32.exe File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\bin\prism_sw.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOADFPS.DLL rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\GamesXboxHubStoreLogo.scale-200_contrast-white.png rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\svgCheckboxSelected.svg rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSIPC\cs\msipc.dll.mui rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\Assets\Audio\Skype_Login.m4a rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-20_altform-unplated_contrast-white.png rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\add-comment-2x.png rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\uss-search\js\nls\ui-strings.js rundll32.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\TimerWideTile.contrast-white_scale-125.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\Images\PrintAndShare\Logo.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\FileIcons\FileLogoExtensions.targetsize-24.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteNotebookMedTile.scale-125.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\en-us\outlook_whatsnew.xml rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\LISTS\BASMLA.XSL rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\AppPackageAppList.targetsize-32.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Assets\WideTile.scale-200.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxMailLargeTile.scale-150.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\TXP_Package_Light.png rundll32.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\intf\dumpmeta.luac rundll32.exe File opened for modification C:\Program Files\Windows Media Player\en-US\wmpnscfg.exe.mui rundll32.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.DesktopAppInstaller_1.0.30251.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\AppPackageLargeTile.scale-125.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x86__8wekyb3d8bbwe\Microsoft.Services.Store.Engagement.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ppd.xrm-ms rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected] rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\Square44x44Logo.targetsize-80.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Sticker_PigEar.png rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-white_targetsize-96.png rundll32.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\oledbvbs.inc rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_KMS_Client-ul.xrm-ms rundll32.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.Resources.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Car\RTL\contrast-white\LargeTile.scale-200.png rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\ui-strings.js rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\Cartridges\sql2000.xsl rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Home\contrast-white\TmfBE10.tmp rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ExcelCtxUICellLayoutModel.bin rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 464 wrote to memory of 4220 464 rundll32.exe 81 PID 464 wrote to memory of 4220 464 rundll32.exe 81 PID 464 wrote to memory of 4220 464 rundll32.exe 81
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:464 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#12⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
PID:4220
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