Analysis Overview
SHA256
97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5
Threat Level: Known bad
The file 97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5 was found to be: Known bad.
Malicious Activity Summary
Ryuk
Suspicious use of NtCreateProcessExOtherParentProcess
Executes dropped EXE
Checks computer location settings
Deletes itself
Loads dropped DLL
Adds Run key to start application
Drops file in Program Files directory
Enumerates physical storage devices
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-20 04:16
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-20 04:16
Reported
2022-02-20 04:56
Platform
win7-en-20211208
Max time kernel
174s
Max time network
33s
Command Line
Signatures
Ryuk
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\users\Public\vZcBC.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\users\Public\vZcBC.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.exe | N/A |
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\\Public\\vZcBC.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\Common Files\Microsoft Shared\ink\ro-RO\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Metlakatla | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Tanspecks.jpg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\chapters-static.png | 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\DVD Maker\Shared\DvdStyles\Pets\Scenes_LOOP_BG.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationLeft_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\include\jawt.h | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Tucuman | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\pl.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\babypink.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\CircleSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\lib\derbyLocale_ko_KR.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Push\NavigationUp_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\1047x576black.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\PreviousMenuButtonIcon.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Porto_Velho | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\is.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\az.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskpred\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationLeft_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\blackbars80.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\local_policy.jar | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Africa\Johannesburg | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Triedit\ja-JP\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\ado\es-ES\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\ParentMenuButtonIconSubpict.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Tiki.gif | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\TextConv\ja-JP\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\NavigationRight_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\SpecialNavigationUp_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationLeft_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\cmm\CIEXYZ.pf | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Boise | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\btn-next-static.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Notes_LOOP_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\America\Indiana\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\pt-PT\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\VGX\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\Java\jdk1.7.0_80\db\bin\sysinfo | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\ipsfin.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\zh-CN\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\win32_CopyDrop32x32.gif | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\it.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\en-US\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\Ole DB\es-ES\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\Gaza | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\es.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\ja-jp.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\es-ES\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\NavigationLeft_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\Passport.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\db\bin\setNetworkServerCP | 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\7-Zip\Lang\ca.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\ipssrb.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\msadc\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\16to9Squareframe_VideoInset.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\VideoWall\videowall.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\jfr\default.jfc | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Cambridge_Bay | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\rtstreamsource.ax | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Vignette\1047x576black.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\Public\vZcBC.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\users\Public\vZcBC.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\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.exe
"C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.exe"
C:\users\Public\vZcBC.exe
"C:\users\Public\vZcBC.exe" C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.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\Public\vZcBC.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\Public\vZcBC.exe" /f
Network
Files
memory/1628-55-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
\Users\Public\vZcBC.exe
| MD5 | 31bd0f224e7e74eee2847f43aae23974 |
| SHA1 | 92e331e1e8ad30538f38dd7ba31386afafa14a58 |
| SHA256 | 8b0a5fb13309623c3518473551cb1f55d38d8450129d4a3c16b476f7b2867d7d |
| SHA512 | a13f05a12b084ef425f542ff4be824bbccb5dbdfe085af8b7e19d81a6bcba4b8c1debcc38f6b57bc9265a4db21eed70852ece8cc62b3ef14c47fca3035a55249 |
C:\Users\Public\vZcBC.exe
| MD5 | 31bd0f224e7e74eee2847f43aae23974 |
| SHA1 | 92e331e1e8ad30538f38dd7ba31386afafa14a58 |
| SHA256 | 8b0a5fb13309623c3518473551cb1f55d38d8450129d4a3c16b476f7b2867d7d |
| SHA512 | a13f05a12b084ef425f542ff4be824bbccb5dbdfe085af8b7e19d81a6bcba4b8c1debcc38f6b57bc9265a4db21eed70852ece8cc62b3ef14c47fca3035a55249 |
memory/1704-58-0x000007FEFC3A1000-0x000007FEFC3A3000-memory.dmp
memory/1124-59-0x000000013F970000-0x000000013FCFE000-memory.dmp
memory/1124-60-0x000000013F970000-0x000000013FCFE000-memory.dmp
memory/1224-63-0x000000013F970000-0x000000013FCFE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-20 04:16
Reported
2022-02-20 04:57
Platform
win10v2004-en-20220112
Max time kernel
200s
Max time network
210s
Command Line
Signatures
Ryuk
Suspicious use of NtCreateProcessExOtherParentProcess
| Description | Indicator | Process | Target |
| PID 3716 created 2652 | N/A | C:\Windows\system32\WerFault.exe | C:\Windows\system32\DllHost.exe |
| PID 2908 created 2828 | N/A | C:\Windows\system32\WerFault.exe | C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\users\Public\uDqLV.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation | C:\users\Public\uDqLV.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Windows\system32\reg.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\users\\Public\\uDqLV.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\Common Files\microsoft shared\ink\sr-Latn-RS\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\de-DE\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\Ole DB\oledbvbs.inc | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\bin\setNetworkClientCP | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\flavormap.properties | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\fonts\LucidaTypewriterRegular.ttf | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\deploy\messages_es.properties | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\security\US_export_policy.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\ea.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbynet.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\include\jvmticmlr.h | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\include\jni.h | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\com.jrockit.mc.feature.console_5.5.0.165303\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\en.ttt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipssve.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\management\jmxremote.access | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\configuration\org.eclipse.equinox.simpleconfigurator\bundles.info | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7-zip.chm | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\eo.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ta.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\bin\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyLocale_es.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\com.jrockit.mc.feature.console_5.5.0.165303\feature.properties | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\msadc\de-DE\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\psfont.properties.ja | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\co.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\uz.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\Ole DB\it-IT\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\Ole DB\fr-FR\sqlxmlx.rll.mui | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\resources.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\com.jrockit.mc.feature.flightrecorder_5.5.0.165303\feature.properties | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientEventLogMessages.man | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Internet Explorer\fr-FR\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\ext\cldrdata.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ko.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\pl.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\VSTO\vstoee90.tlb | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbytools.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\bin\server\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\management\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\LICENSE | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\pt-br.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fr-FR\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_rtl.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\bin\NetworkServerControl.bat | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\ext\access-bridge-64.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\meta-index | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\dropins\README.TXT | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\com.jrockit.mc.feature.core_5.5.0.165303\feature.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ext.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ru.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.hash | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipsdeu.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyLocale_ko_KR.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskpred\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad\auxbase.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Internet Explorer\it-IT\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\bin\ij | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\images\cursors\cursors.properties | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\jawt.lib | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\com.jrockit.mc.feature.flightrecorder_5.5.0.165303\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Windows\system32\DllHost.exe |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Windows\system32\DllHost.exe |
| N/A | N/A | C:\Windows\system32\WerFault.exe | C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\users\Public\uDqLV.exe | N/A |
| N/A | N/A | C:\users\Public\uDqLV.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\users\Public\uDqLV.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\RuntimeBroker.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
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
C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup
C:\Windows\system32\sihost.exe
sihost.exe
C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.exe
"C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.exe"
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k wusvcs -p
C:\users\Public\uDqLV.exe
"C:\users\Public\uDqLV.exe" C:\Users\Admin\AppData\Local\Temp\97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5.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\Public\uDqLV.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\Public\uDqLV.exe" /f
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 416 -p 2652 -ip 2652
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2652 -s 388
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 452 -p 2828 -ip 2828
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2652 -s 388
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2828 -s 3220
Network
| Country | Destination | Domain | Proto |
| US | 8.238.20.254:80 | tcp | |
| US | 8.238.20.254:80 | tcp | |
| NL | 104.80.224.57:443 | tcp |
Files
C:\users\Public\uDqLV.exe
| MD5 | 31bd0f224e7e74eee2847f43aae23974 |
| SHA1 | 92e331e1e8ad30538f38dd7ba31386afafa14a58 |
| SHA256 | 8b0a5fb13309623c3518473551cb1f55d38d8450129d4a3c16b476f7b2867d7d |
| SHA512 | a13f05a12b084ef425f542ff4be824bbccb5dbdfe085af8b7e19d81a6bcba4b8c1debcc38f6b57bc9265a4db21eed70852ece8cc62b3ef14c47fca3035a55249 |
C:\Users\Public\uDqLV.exe
| MD5 | 31bd0f224e7e74eee2847f43aae23974 |
| SHA1 | 92e331e1e8ad30538f38dd7ba31386afafa14a58 |
| SHA256 | 8b0a5fb13309623c3518473551cb1f55d38d8450129d4a3c16b476f7b2867d7d |
| SHA512 | a13f05a12b084ef425f542ff4be824bbccb5dbdfe085af8b7e19d81a6bcba4b8c1debcc38f6b57bc9265a4db21eed70852ece8cc62b3ef14c47fca3035a55249 |
memory/2140-132-0x00007FF6EF480000-0x00007FF6EF80E000-memory.dmp
memory/2160-133-0x00007FF6EF480000-0x00007FF6EF80E000-memory.dmp