Analysis Overview
SHA256
782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e
Threat Level: Known bad
The file 782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e 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 05:34
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-20 05:34
Reported
2022-02-20 06:25
Platform
win10v2004-en-20220113
Max time kernel
47s
Max time network
138s
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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\reg.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe" | C:\Windows\system32\reg.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe
"C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe" /f
Network
Files
memory/2356-130-0x00007FF637CA0000-0x00007FF63802E000-memory.dmp
memory/2368-131-0x00007FF637CA0000-0x00007FF63802E000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-20 05:34
Reported
2022-02-20 06:25
Platform
win7-en-20211208
Max time kernel
172s
Max time network
44s
Command Line
Signatures
Ryuk
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\reg.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.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\Java\jdk1.7.0_80\jre\lib\zi\SystemV\AST4ADT | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsMainBackground.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.console_5.5.0.165303\feature.properties | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\winXPBluHandle.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\msadc\es-ES\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\deploy\ffjcext.zip | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Europe\Helsinki | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Internet Explorer\Timeline.cpu.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Gibraltar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Pacific\Wake | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\4to3Squareframe_VideoInset.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\include\win32\jawt_md.h | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\calendars.properties | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\grid_(cm).wmf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-2 | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\btn-back-static.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\button-highlight.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Amman | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rcp.intro_5.5.0.165303.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Music.emf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_notes-txt-background.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\BabyBoyNotesBackground.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\license.html | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-print.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-masterfs.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-options.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-ui_ja.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-lib-profiler-common.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\VideoLAN\VLC\locale\bg\LC_MESSAGES\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Australia\Melbourne | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.core.nl_zh_4.4.0.v20140623020002.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\America\Scoresbysund | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Asia\Yakutsk | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Europe\Minsk | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-loaders_zh_CN.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_de_DE.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\America\Maceio | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_frame-highlight.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.expressions_3.4.600.v20140128-0851.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\css\e4-dark.css | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Heart_VideoInset.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.rcp.zh_CN_5.5.0.165303\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Chita | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Antarctica\Troll | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Reference Assemblies\Microsoft\RyukReadMe.txt | 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\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.director.app.nl_zh_4.4.0.v20140623020002.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Yekaterinburg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Monaco | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\META-INF\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\an.txt | 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\Java\jdk1.7.0_80\jre\lib\zi\Australia\Currie | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\icons\console_view.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-sampler_ja.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-swing-plaf.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Dot.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.workbench_1.2.1.v20140901-1244.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\locale\org-openide-util_ja.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre7\lib\zi\Asia\Urumqi | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Microsoft Games\Multiplayer\Checkers\fr-FR\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\MSInfo\en-US\RyukReadMe.txt | 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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
C:\Windows\system32\taskhost.exe
"taskhost.exe"
C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe
"C:\Users\Admin\AppData\Local\Temp\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.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\782788d736a6c603dbfb57f302e54e9050219e24dbde3c3b6f69484004d9415e.exe" /f
Network
Files
memory/1668-54-0x000007FEFC451000-0x000007FEFC453000-memory.dmp
memory/1256-55-0x000000013F520000-0x000000013F8AE000-memory.dmp
memory/1256-56-0x000000013F520000-0x000000013F8AE000-memory.dmp
memory/1336-59-0x000000013F520000-0x000000013F8AE000-memory.dmp