Analysis Overview
SHA256
3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
Threat Level: Known bad
The file 3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f was found to be: Known bad.
Malicious Activity Summary
Suspicious use of NtCreateProcessExOtherParentProcess
Ryuk
Checks computer location settings
Adds Run key to start application
Drops file in Program Files directory
Drops file in Windows directory
Program crash
Enumerates physical storage devices
Modifies registry class
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-20 08:45
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-20 08:45
Reported
2022-02-20 09:34
Platform
win7-en-20211208
Max time kernel
167s
Max time network
31s
Command Line
Signatures
Ryuk
Adds Run key to start application
| Description | Indicator | Process | Target |
| 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\\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe" | C:\Windows\system32\reg.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | 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\Stationery\Shades of Blue.htm | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DenyWrite.otf | 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\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\FlipPage\NavigationUp_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\OldAge\NavigationRight_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\ipsjpn.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\navSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_frame-border.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\NavigationLeft_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationUp_ButtonGraphic.png | 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\CheckpointRequest.TTS | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Filters\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\ipssrl.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\Common Files\Microsoft Shared\Stationery\Wrinkled_Paper.gif | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\fr-FR\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\msadc\adcvbs.inc | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\af.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\DVD Maker\Shared\DvdStyles\Performance\NextMenuButtonIcon.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\203x8subpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Circle_SelectionSubpictureB.png | 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\System\Ole DB\oledbjvs.inc | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\nav_rightarrow.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\NavigationUp_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\License.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\cloud_Thumbnail.bmp | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\1047x576black.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Memories\Notes_btn-back-static.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\photoedge_selectionsubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\15x15dot.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\ado\msado21.tlb | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\sr-Latn-CS\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\DVD Maker\Shared\DvdStyles\Memories\16_9-frame-highlight.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsMainToScenesBackground.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ast.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\tr.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\symbols\ea-sym.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hr-HR\RyukReadMe.txt | 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\DVD Maker\Shared\DvdStyles\BabyGirl\flower_precomp_matte.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ga.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationLeft_ButtonGraphic.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\NavigationRight_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hwresplm.dat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\OFFICE14\Cultures\RyukReadMe.txt | 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\BabyBoy\BabyBoyMainBackground_PAL.wmv | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\highlight.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\es-ES\RyukReadMe.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\mk.txt | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\hwrenalm.dat | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\ink\ipscat.xml | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\Stationery\Roses.htm | 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\Push\NavigationLeft_SelectionSubpicture.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\btn-back-static.png | C:\Windows\system32\taskhost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\ba.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\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe
"C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe" /f
Network
Files
memory/1600-55-0x000007FEFC2D1000-0x000007FEFC2D3000-memory.dmp
memory/1224-56-0x000000013F1A0000-0x000000013F529000-memory.dmp
memory/1224-58-0x000000013F1A0000-0x000000013F529000-memory.dmp
memory/1320-59-0x000000013F1A0000-0x000000013F529000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-20 08:45
Reported
2022-02-20 09:34
Platform
win10v2004-en-20220112
Max time kernel
182s
Max time network
202s
Command Line
Signatures
Ryuk
Suspicious use of NtCreateProcessExOtherParentProcess
| Description | Indicator | Process | Target |
| PID 1280 created 2816 | N/A | C:\Windows\system32\WerFault.exe | C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe |
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\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\\Admin\\AppData\\Local\\Temp\\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\7-Zip\Lang\af.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\nn.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_ca.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipskor.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\ado\msador28.tlb | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\bin\stopNetworkServer.bat | 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\Common Files\microsoft shared\ink\fsdefinitions\keypad\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\keypadbase.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\deploy\ffjcext.zip | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipsrom.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\include\win32\bridge\AccessBridgeCallbacks.h | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\deploy\messages_it.properties | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\lt.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\MSInfo\ja-JP\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\fonts\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\images\cursors\invalid32x32.gif | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipstr.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\ado\ja-JP\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\bin\setNetworkServerCP.bat | 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\deploy.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\de.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\hu.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\sv-SE\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\Ole DB\it-IT\sqloledb.rll.mui | 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\Common Files\microsoft shared\ink\cs-CZ\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipscat.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipsptg.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\System\ado\msado60.tlb | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ru-RU\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\io.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RHeartbeatConfig.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyLocale_ru.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\cmm\sRGB.pf | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\hr-HR\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyLocale_it.jar | 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\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\bg-BG\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derby.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\Triedit\RyukReadMe.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\cmm\GRAY.pf | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\jre\lib\fonts\LucidaBrightDemiBold.ttf | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\kk.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\tr.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\System\Ole DB\it-IT\sqlxmlx.rll.mui | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\de-DE\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\7-Zip\Lang\bn.txt | 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\Common Files\microsoft shared\ink\ipssrl.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyLocale_fr.jar | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Java\jdk1.8.0_66\db\lib\derby.war | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\7z.sfx | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\gu.txt | 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\7-Zip\Lang\cs.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\7-Zip\Lang\nb.txt | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml | C:\Windows\system32\sihost.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\microsoft shared\ink\ipsrus.xml | C:\Windows\system32\sihost.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat | C:\Windows\System32\svchost.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\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\system32\MusNotifyIcon.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\system32\MusNotifyIcon.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.492609" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" | C:\Windows\System32\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132899996085996827" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4156" | C:\Windows\System32\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0" | C:\Windows\System32\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0" | C:\Windows\System32\svchost.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\PersistedStorageItemTable | C:\Windows\System32\RuntimeBroker.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\PersistedStorageItemTable\System | C:\Windows\System32\RuntimeBroker.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\sihost.exe
sihost.exe
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\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
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\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup
C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe
"C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.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\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe" /f
C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2712 -s 1004
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 424 -p 2816 -ip 2816
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2816 -s 2844
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | geo.prod.do.dsp.mp.microsoft.com | udp |
| IE | 20.54.24.69:443 | geo.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | kv801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | kv801.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | cp801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | cp801.prod.do.dsp.mp.microsoft.com | udp |
| NL | 184.29.205.60:443 | cp801.prod.do.dsp.mp.microsoft.com | tcp |
Files
memory/2204-130-0x00007FF64CF90000-0x00007FF64D319000-memory.dmp
memory/2224-131-0x00007FF64CF90000-0x00007FF64D319000-memory.dmp
memory/2932-132-0x00007FF64CF90000-0x00007FF64D319000-memory.dmp
memory/2712-133-0x000001F6170A0000-0x000001F6170A8000-memory.dmp
memory/2712-134-0x000001F617090000-0x000001F617091000-memory.dmp