Analysis Overview
SHA256
318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8
Threat Level: Known bad
The file 318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8 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 08:43
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-20 08:43
Reported
2022-02-20 09:32
Platform
win7-en-20211208
Max time kernel
163s
Max time network
29s
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\\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.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\Africa\Windhoek | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-openide-nodes.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\MSInfo\es-ES\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_ja_JP.jar | 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.ja_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\features\org.eclipse.emf.common_2.10.1.v20140901-1043\META-INF\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.equinox.p2.console.nl_ja_4.4.0.v20140623020002.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\etc\visualvm.conf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-core.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Graph.emf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\vistabg.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Belem | 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.garbagecollector.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\lib\visualvm\etc\RyukReadMe.txt | 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-awt_ja.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-nodes.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\en-US\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\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\css\e4_default_mac.css | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\org-openide-modules.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-netbeans-core-multiview.xml | 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-awt.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\osknumpad\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Wrinkled_Paper.gif | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Vignette\vignettemask25.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\amd64\jvm.cfg | 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.model.workbench.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\lib\missioncontrol\plugins\org.eclipse.equinox.p2.updatechecker.nl_ja_4.4.0.v20140623020002.jar | 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-autoupdate-cli_zh_CN.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\16to9Squareframe_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\specialoccasion.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.emf.ecore_2.10.1.v20140901-1043\META-INF\ECLIPSE_.SF | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.help_2.0.102.v20141007-2301\META-INF\MANIFEST.MF | 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.console.ui.notification_5.5.0.165303\html\dcommon\gifs\larrow.gif | 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.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\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-host-remote.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationUp_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\UCT | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgePackages.h | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Yerevan | 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\META-INF\ECLIPSE_.SF | 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.greychart.ui_5.5.0.165303.jar | 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\schema\com.jrockit.mc.rjmx.attributeTransformation.exsd | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hwrespsh.dat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Circle_SelectionSubpictureA.png | 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.ssl.feature_1.0.0.v20140827-1444\META-INF\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.equinox.p2.touchpoint.eclipse_2.1.200.v20140512-1650.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-netbeans-bootstrap.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Paramaribo | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+4 | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\RyukReadMe.txt | 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\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.core.feature_1.3.0.v20140523-0116\META-INF\ECLIPSE_.RSA | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\VERSION.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\16to9Squareframe_Buttongraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Notes_INTRO_BG_PAL.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+12 | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.help.ui.nl_ja_4.4.0.v20140623020002.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-application-views.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-attach.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\Tunis | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Maceio | 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-queries_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-modules-profiler-oql.jar | 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\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.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\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe
"C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.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\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.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\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe" /f
Network
Files
memory/1600-54-0x000007FEFC261000-0x000007FEFC263000-memory.dmp
memory/1096-55-0x000000013F160000-0x000000013F4E7000-memory.dmp
memory/1096-57-0x000000013F160000-0x000000013F4E7000-memory.dmp
memory/1180-58-0x000000013F160000-0x000000013F4E7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-20 08:43
Reported
2022-02-20 09:33
Platform
win10v2004-en-20220113
Max time kernel
43s
Max time network
80s
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\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1300 wrote to memory of 2944 | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | C:\Windows\System32\cmd.exe |
| PID 1300 wrote to memory of 2944 | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | C:\Windows\System32\cmd.exe |
| PID 1300 wrote to memory of 2312 | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | C:\Windows\system32\sihost.exe |
| PID 1300 wrote to memory of 2340 | N/A | C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe | C:\Windows\system32\svchost.exe |
Processes
C:\Windows\system32\sihost.exe
sihost.exe
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe
"C:\Users\Admin\AppData\Local\Temp\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.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\318963e919790a5ced29f618ad9c1e25ec71c16b11a89674fcf390aa1fb776c8.exe" /f
Network
| Country | Destination | Domain | Proto |
| US | 72.21.81.240:80 | tcp | |
| US | 72.21.81.240:80 | tcp |
Files
memory/2312-130-0x00007FF609C60000-0x00007FF609FE7000-memory.dmp
memory/2340-131-0x00007FF609C60000-0x00007FF609FE7000-memory.dmp