Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21/04/2022, 19:34
Static task
static1
Behavioral task
behavioral1
Sample
msg.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
msg.exe
Resource
win10v2004-20220414-en
General
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Target
msg.exe
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Size
1.0MB
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MD5
b891aa5781114582c27baa0c8029777c
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SHA1
7a53a0516286728323c8e6d02a6a5e1077726f4c
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SHA256
4d00ce6c7237134b00cde4b24f1c6dfaffb031cf84845a8bae2a5e5ece8f5434
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SHA512
63e5357d3b24f6435d77c47c510386dfe45e97ade64e574b24f3349a08a63e0f415534a3e5bc72f9d45011abbead12e9d8bfecbd61ff3363326af0b4b73cbc85
Malware Config
Extracted
C:\README1.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README2.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README3.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README4.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README5.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README6.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README7.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README8.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README9.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Extracted
C:\README10.txt
http://cryptsen7fo43rr6.onion/
http://cryptsen7fo43rr6.onion.to/
http://cryptsen7fo43rr6.onion.cab/
Signatures
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Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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resource yara_rule behavioral2/memory/4152-131-0x0000000000400000-0x0000000000608000-memory.dmp upx behavioral2/memory/4152-132-0x0000000000400000-0x0000000000608000-memory.dmp upx -
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
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ msg.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" msg.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-24_altform-unplated_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-24_altform-lightunplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\AppPackageBadgeLogo.scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-32.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-36_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraWideTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.targetsize-16.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-white_targetsize-16.png msg.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsSoundRecorder_10.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\VoiceRecorderSmallTile.contrast-white_scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\SmallTile.scale-150.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Thumbnails\Sticker_Icon_Wood.jpg msg.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.XboxApp_48.49.31001.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\GamesXboxHubSplashScreen.scale-125_contrast-high.png msg.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Home\LTR\contrast-white\SmallTile.scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-80_contrast-black.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\OutlookMailBadge.scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\158.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\StoreLogo.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-black_targetsize-30_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-white\PeopleLargeTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-black\OneNoteWideTile.scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\contrast-white\Weather_SplashScreen.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\RTL\contrast-white\LargeTile.scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.SkypeApp_14.53.77.0_neutral_split.scale-125_kzf8qxf38zg5c\Assets\Images\SkypeAppList.scale-125_contrast-white.png msg.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\Office Setup Controller\Office.en-us\PSS10R.CHM msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\contrast-white\BadgeLogo.scale-100_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.targetsize-20.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\models\es-ES.mail.config msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\PreviewMailList.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\OneNoteNewNoteWideTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Assets\Preview.scale-200_layoutdir-LTR.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxCalendarBadge.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\MedTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\ReactAssets\assets\RNApp\app\uwp\images\tab_mru_darktheme.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteAppList.targetsize-24.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\GenericMailSmallTile.scale-200.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Sticker_Spiral.png msg.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected] msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.targetsize-72_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.contrast-white_targetsize-40_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-32_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\zh-CN\View3d\3DViewerProductDescription-universal.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\LiveTile\Icons_Icon_Wind_sm.png msg.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\images\buttons.png msg.exe File opened for modification C:\Program Files\Microsoft Office\root\rsod\osm.x-none.msi.16.x-none.boot.tree.dat msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Custom_Sticker_Checkerboard.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Common.View.UWP\Strings\cs-CZ\View3d\3DViewerProductDescription-universal.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\196.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Assets\AppTiles\WeatherIcons\30x30\179.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-Google.scale-250.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-black\HxA-Yahoo-Dark.scale-150.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SmallTile.scale-125_contrast-black.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\Assets\ScreenSketchSquare44x44Logo.targetsize-36_altform-lightunplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-20.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\StoreLogo.scale-400.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\CalculatorLargeTile.contrast-white_scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\resources\strings\LocalizedStrings_tr.json msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\8041_32x32x32.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-20_altform-unplated_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxCalendarAppList.targetsize-96_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\ExchangeLargeTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\HxCalendarAppList.scale-400.png msg.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\dialogs\offset_window.html msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\Assets\ScreenSketchSquare44x44Logo.targetsize-256_altform-unplated_contrast-white_devicefamily-colorfulunplated.png msg.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 3 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 4024 vssadmin.exe 4180 vssadmin.exe 1744 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4152 msg.exe 4152 msg.exe 4152 msg.exe 4152 msg.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 3412 vssvc.exe Token: SeRestorePrivilege 3412 vssvc.exe Token: SeAuditPrivilege 3412 vssvc.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4152 wrote to memory of 4024 4152 msg.exe 85 PID 4152 wrote to memory of 4024 4152 msg.exe 85 PID 4152 wrote to memory of 4180 4152 msg.exe 89 PID 4152 wrote to memory of 4180 4152 msg.exe 89 PID 4152 wrote to memory of 1744 4152 msg.exe 91 PID 4152 wrote to memory of 1744 4152 msg.exe 91 PID 4152 wrote to memory of 4056 4152 msg.exe 93 PID 4152 wrote to memory of 4056 4152 msg.exe 93 PID 4152 wrote to memory of 4056 4152 msg.exe 93 PID 4056 wrote to memory of 4236 4056 cmd.exe 95 PID 4056 wrote to memory of 4236 4056 cmd.exe 95 PID 4056 wrote to memory of 4236 4056 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\msg.exe"C:\Users\Admin\AppData\Local\Temp\msg.exe"1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4152 -
C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe List Shadows2⤵
- Interacts with shadow copies
PID:4024
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C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet2⤵
- Interacts with shadow copies
PID:4180
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C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe List Shadows2⤵
- Interacts with shadow copies
PID:1744
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe2⤵
- Suspicious use of WriteProcessMemory
PID:4056 -
C:\Windows\SysWOW64\chcp.comchcp3⤵PID:4236
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3412