Analysis Overview
SHA256
414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87
Threat Level: Known bad
The file 414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87 was found to be: Known bad.
Malicious Activity Summary
Ryuk
Checks computer location settings
Adds Run key to start application
Drops file in Program Files directory
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-20 08:04
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-20 08:04
Reported
2022-02-20 09:17
Platform
win7-en-20211208
Max time kernel
172s
Max time network
24s
Command Line
Signatures
Ryuk
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\reg.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe" | C:\Windows\system32\reg.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Scenes_LOOP_BG_PAL.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\mainscroll.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\bin\dblook.bat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Green Bubbles.htm | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DenyImport.tif | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_precomp_matte.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\NavigationUp_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\NavigationUp_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\bin\sysinfo.bat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\msadc\handsafe.reg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Monet.jpg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\OldAge\1047x576black.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\NavigationRight_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_heb.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Garden.jpg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsScenesBackground_PAL.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\lib\derby.war | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskpred.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Connectivity.gif | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\BabyBoyMainBackground.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\ParentMenuButtonIcon.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\include\jni.h | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\fonts\LucidaBrightRegular.ttf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hwrdeulm.dat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\NavigationLeft_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\br.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fi-FI\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_image-frame-ImageMask.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\th.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\management\jmxremote.password.template | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\java.policy | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsNotesBackground.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\photograph.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\charsets.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hwresmlm.dat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\SoftBlue.jpg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SceneButtonInset_Alpha1.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\menu_style_default_Thumbnail.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\NavigationRight_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_btn-next-over-select.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\soniccolorconverter.ax | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\va.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\msadc\de-DE\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\PreviousMenuButtonIcon.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Internet Explorer\en-US\eula.rtf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_altgr.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\ja-JP\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\NavigationLeft_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\header-background.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\tr-TR\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\ja-JP\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_trans_matte.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\cursors.properties | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\lv.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Full\NavigationUp_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\bin\setNetworkClientCP | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Perf_Scenes_Mask1.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\reflect.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\content-background.png | C:\Windows\system32\taskhost.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\taskhost.exe
"taskhost.exe"
C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe
"C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe" /f
C:\Windows\system32\reg.exe
REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe" /f
Network
Files
memory/1620-55-0x000007FEFC3A1000-0x000007FEFC3A3000-memory.dmp
memory/1124-56-0x000000013FEC0000-0x000000014024E000-memory.dmp
memory/1124-58-0x000000013FEC0000-0x000000014024E000-memory.dmp
memory/1224-59-0x000000013FEC0000-0x000000014024E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-20 08:04
Reported
2022-02-20 09:19
Platform
win10v2004-en-20220113
Max time kernel
68s
Max time network
153s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
C:\Windows\system32\sihost.exe
sihost.exe
C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe
"C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe" /f
C:\Windows\system32\reg.exe
REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\414bfb0bb83ad01da8f54cb858aae7ee37b6029cf529d6e6f89ee0f451edbd87.exe" /f
Network
| Country | Destination | Domain | Proto |
| FR | 2.16.119.157:443 | tcp | |
| US | 13.107.4.50:80 | tcp | |
| US | 13.107.4.50:80 | tcp |
Files
memory/2276-130-0x00007FF7ABE80000-0x00007FF7AC20E000-memory.dmp
memory/708-131-0x00007FF7ABE80000-0x00007FF7AC20E000-memory.dmp