Analysis
-
max time kernel
144s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
22-05-2022 05:36
Static task
static1
Behavioral task
behavioral1
Sample
msg.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
msg.exe
Resource
win10v2004-20220414-en
General
-
Target
msg.exe
-
Size
1.0MB
-
MD5
b891aa5781114582c27baa0c8029777c
-
SHA1
7a53a0516286728323c8e6d02a6a5e1077726f4c
-
SHA256
4d00ce6c7237134b00cde4b24f1c6dfaffb031cf84845a8bae2a5e5ece8f5434
-
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
-
Troldesh, Shade, Encoder.858
Troldesh is a ransomware spread by malspam.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Processes:
resource yara_rule behavioral2/memory/2068-131-0x0000000000400000-0x0000000000608000-memory.dmp upx behavioral2/memory/2068-132-0x0000000000400000-0x0000000000608000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
msg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ msg.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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.
-
Drops file in Program Files directory 64 IoCs
Processes:
msg.exedescription ioc process File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-32.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-64_altform-unplated_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Work\RTL\contrast-white\SmallTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsStoreLogo.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.targetsize-30_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-white\AppList.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\images\contrast-white\HxMailSmallTile.scale-400.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\AppIcon.targetsize-16_contrast-black.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\Images\Ratings\Yelp2.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-72_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AppTiles\MediumTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_neutral_~_8wekyb3d8bbwe\AppxBlockMap.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubMedTile.scale-100_contrast-high.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\AppxManifest.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderLogoExtensions.targetsize-20.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Place\contrast-white\SmallTile.scale-200.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-40_contrast-high.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-16_altform-unplated_contrast-high.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.contrast-white_targetsize-80_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\FileExtension.targetsize-24.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-96_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\GamesXboxHubSplashScreen.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxBlockMap.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubMedTile.scale-200.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-64_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-32_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_neutral_split.scale-100_8wekyb3d8bbwe\AppxManifest.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.UI\Resources\Images\star_qtr.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\RTL\contrast-black\LargeTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxCalendarSmallTile.scale-125.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\SmallTile.scale-200_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\IDPValueAssets\PCMobileValueProp.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-white\MapsAppList.targetsize-40_altform-lightunplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubSplashWideTile.scale-200_contrast-white.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\InsiderHubStoreLogo.scale-100_contrast-black.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsAppList.targetsize-80_altform-unplated.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\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_Mocking.help.txt msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-60.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.contrast-black_targetsize-96.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\LTR\contrast-black\MedTile.scale-200.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Place\RTL\contrast-white\MedTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-256_altform-unplated_contrast-white_devicefamily-colorfulunplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-96_altform-unplated_devicefamily-colorfulunplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\Microsoft.UI.Xaml\Assets\NoiseAsset_256X256_PNG.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderLogoExtensions.targetsize-32.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxCalendarAppList.targetsize-36.png msg.exe File opened for modification C:\Program Files\WindowsPowerShell\Modules\Pester\3.4.0\en-US\about_should.help.txt msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-256_contrast-black.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppUpdate.svg msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\NavigationIcons\nav_icons_home.targetsize-48.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Assets\AppTiles\contrast-black\MapsAppList.scale-200.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-64_altform-unplated_contrast-black.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\Assets\AppTiles\AppIcon.targetsize-30_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\Assets\GameBar_AppList.targetsize-48_altform-unplated.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_2019.716.2313.0_neutral_~_8wekyb3d8bbwe\AppxMetadata\AppxBundleManifest.xml msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\Assets\NavigationIcons\nav_icons_activityAlert.targetsize-48.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\Assets\AppTiles\StoreLargeTile.scale-200.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-Advanced-Dark.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Assets\OrientationControlOuterCircleHover.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\GameBar_MedTile.scale-100.png msg.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-24.png msg.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\images\contrast-white\ExchangeWideTile.scale-150.png msg.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Interacts with shadow copies 2 TTPs 3 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exevssadmin.exepid process 2124 vssadmin.exe 4228 vssadmin.exe 1644 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
msg.exepid process 2068 msg.exe 2068 msg.exe 2068 msg.exe 2068 msg.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 3684 vssvc.exe Token: SeRestorePrivilege 3684 vssvc.exe Token: SeAuditPrivilege 3684 vssvc.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
msg.execmd.exedescription pid process target process PID 2068 wrote to memory of 2124 2068 msg.exe vssadmin.exe PID 2068 wrote to memory of 2124 2068 msg.exe vssadmin.exe PID 2068 wrote to memory of 4228 2068 msg.exe vssadmin.exe PID 2068 wrote to memory of 4228 2068 msg.exe vssadmin.exe PID 2068 wrote to memory of 1644 2068 msg.exe vssadmin.exe PID 2068 wrote to memory of 1644 2068 msg.exe vssadmin.exe PID 2068 wrote to memory of 4352 2068 msg.exe cmd.exe PID 2068 wrote to memory of 4352 2068 msg.exe cmd.exe PID 2068 wrote to memory of 4352 2068 msg.exe cmd.exe PID 4352 wrote to memory of 4768 4352 cmd.exe chcp.com PID 4352 wrote to memory of 4768 4352 cmd.exe chcp.com PID 4352 wrote to memory of 4768 4352 cmd.exe chcp.com
Processes
-
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:2068 -
C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe List Shadows2⤵
- Interacts with shadow copies
PID:2124
-
-
C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet2⤵
- Interacts with shadow copies
PID:4228
-
-
C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe List Shadows2⤵
- Interacts with shadow copies
PID:1644
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe2⤵
- Suspicious use of WriteProcessMemory
PID:4352 -
C:\Windows\SysWOW64\chcp.comchcp3⤵PID:4768
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3684