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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25/10/2024, 07:10
Static task
static1
General
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Target
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Size
330KB
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MD5
8c26c5bb599b606cc549ceef0d9d2da3
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SHA1
86a373936df7e753f7284efc63bf8970e9a56870
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SHA256
acc791703bc6e6ec9dcad7ef28ea5bcd1cf70f0a17412b28078daa66df5989d8
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SHA512
f05012ab52e2e88f0342d0a9fc52be210cdb4895035c4854592f350e24ddbcf48a710c25285c73a0462d51fe937540d491f5ce376e226558398cc1eb7bab2873
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SSDEEP
6144:ypBFADu1hgO8uoHKm9bDSN23GqcgCC/5t:sM6TgO1oHbHSN2334O
Malware Config
Signatures
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Renames multiple (6533) 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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation [email protected] -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoDev.png [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue Green.xml [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\AppList.scale-400.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\AppIcon.targetsize-60_altform-unplated_contrast-black.png [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\search-summary\js\nls\ko-kr\ui-strings.js [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherImages\423x173\19.jpg [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-64_contrast-black.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\resources.pri [email protected] File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxMailWideTile.scale-100.png [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\WidescreenPresentation.potx [email protected] File created C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Car\RTL\contrast-black\#Recover-Files.txt [email protected] File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\ko-kr\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\bwnumbered.dotx [email protected] File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsCamera_2018.826.98.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.scale-125.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\Weather_BadgeLogo.scale-100.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\GetStartedSmallTile.scale-200_contrast-black.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\s_filter-focus_32.svg [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\images\themes\dark\example_icons.png [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-computer\js\nls\fr-ma\ui-strings.js [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-black_scale-100.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\MyOffice.BackgroundTasks.winmd [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteSectionGroupSmallTile.scale-400.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\Images\PlaceCard\contrast-white\Error.svg [email protected] File opened for modification C:\Program Files (x86)\Common Files\Adobe\Reader\DC\Linguistics\Providers\Plugins2\AdobeHunspellPlugin\SupplementalDictionaries\en_GB\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\favicon.ico [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\RNApp\app\uwp\images\commerce\call_failure_illustration.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.contrast-white_targetsize-20.png [email protected] File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\signatures\js\nls\ja-jp\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\SpotlightMail_2017-09.gif [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Home\contrast-white\LargeTile.scale-200.png [email protected] File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred.xml [email protected] File opened for modification C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\#Recover-Files.txt [email protected] File created C:\Program Files\Microsoft Office\root\Office16\Bibliography\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\VideoLAN\VLC\locale\vi\LC_MESSAGES\vlc.mo [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ppd.xrm-ms [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\AppList.scale-150.png [email protected] File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\chocolateyInstall.ps1 [email protected] File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\Functions\Assertions\BeOfType.Tests.ps1 [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-256_altform-unplated_contrast-high.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-96.png [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\hi_contrast\core_icons__retina_hiContrast_bow.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\ScreenSketchSquare71x71Logo.scale-125_contrast-black.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\AppxSignature.p7x [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-96_altform-unplated_contrast-white.png [email protected] File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\add-account\js\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_OEM_Perp-ppd.xrm-ms [email protected] File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\RICEPAPR\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\AppPackageMedTile.scale-100.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-black\MedTile.scale-100_contrast-black.png [email protected] File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\nl-nl\#Recover-Files.txt [email protected] File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxAccountsStoreLogo.scale-100.png [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\images\themes\dark\s_folder-down_32.svg [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\js\nls\tr-tr\ui-strings.js [email protected] File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\walk-through\js\nls\es-es\#Recover-Files.txt [email protected] File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sample-files\assets\Sample Files\Adobe Acrobat Pro DC.pdf [email protected] File opened for modification C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri Light-Constantia.xml [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Logos\StoreLogo\PaintApplist.scale-150.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.targetsize-60.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\StoreLogo.png [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\ControlStyles.xbf [email protected] File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Assets\PhotosWideTile.contrast-white_scale-200.png [email protected] File created C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\AppxMetadata\#Recover-Files.txt [email protected] -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\Local Settings\MuiCache StartMenuExperienceHost.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2208 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4216 StartMenuExperienceHost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1888 wrote to memory of 1300 1888 [email protected] 84 PID 1888 wrote to memory of 1300 1888 [email protected] 84 PID 1300 wrote to memory of 2208 1300 cmd.exe 86 PID 1300 wrote to memory of 2208 1300 cmd.exe 86 PID 1888 wrote to memory of 3504 1888 [email protected] 105 PID 1888 wrote to memory of 3504 1888 [email protected] 105 PID 3504 wrote to memory of 3240 3504 cmd.exe 107 PID 3504 wrote to memory of 3240 3504 cmd.exe 107 -
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.
Processes
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C:\Users\Admin\AppData\Local\Temp\[email protected]"C:\Users\Admin\AppData\Local\Temp\[email protected]"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c SCHTASKS.exe /Create /RU "NT AUTHORITY\SYSTEM" /sc onstart /TN "Windows Update ALPHV" /TR "C:\Users\Admin\AppData\Local\Temp\[email protected]" /F2⤵
- Suspicious use of WriteProcessMemory
PID:1300 -
C:\Windows\system32\schtasks.exeSCHTASKS.exe /Create /RU "NT AUTHORITY\SYSTEM" /sc onstart /TN "Windows Update ALPHV" /TR "C:\Users\Admin\AppData\Local\Temp\[email protected]" /F3⤵
- Scheduled Task/Job: Scheduled Task
PID:2208
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c SCHTASKS.exe /Delete /TN "Windows Update ALPHV" /F2⤵
- Suspicious use of WriteProcessMemory
PID:3504 -
C:\Windows\system32\schtasks.exeSCHTASKS.exe /Delete /TN "Windows Update ALPHV" /F3⤵PID:3240
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
449B
MD5e2a59a33e6c827a3317aa009e702e816
SHA1003fa7c8adb28bcb99468f7e0b738308858b6af4
SHA256ad3342ff420c93b547ac3ecd7cfb352bba70a57b67ff5985f2442507decf9f57
SHA512f4c50931db6d051ac62217dca3e5d5ac080b02fda58bd9cb93a81553f6b8cf8369845e87e64e1d378d1fb5749ceadfde9c2b1eb142b512c7200dda5fe56dab99
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C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
Filesize13KB
MD5568e6faca87f87025e68ef49fee6c134
SHA1f642ff7d0369df1baa97172468333f70a2a9a585
SHA256149852c3f345ea1f31dbe8e37501dcd4f07bd76c34fc1643f1dc0f6d6b1e9487
SHA512901cecc0de0e58ea7462097d8fbafc7501661fbe4f629b15e93c27e7baf0a69f3adcffc8e6aac6dd4d421f593fc96e833540066995a9a771f8d016ef08f68037
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C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
Filesize14KB
MD537355643f47056ca0448ed30082a0397
SHA118abc2cfe19859ab70e37112eabfb3a7c77fa28e
SHA25636faa1f6f73f09dc06b66bf45136845f79b60ab959f7ba7f31d29fb42962d700
SHA512b68dcfd342d3ff2508cef21288b0a5acb1c75c6a7ce57a1be7a88b4c9d614192fdcd4af539e812784de4df786e4e23006a15eb1d674b7fbe256c7b3a8b43924c