Malware Analysis Report

2024-10-23 18:35

Sample ID 220220-kn35maafd5
Target 3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
SHA256 3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f
Tags
ryuk persistence ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f

Threat Level: Known bad

The file 3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f was found to be: Known bad.

Malicious Activity Summary

ryuk persistence ransomware

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

Analysis: static1

Detonation Overview

Reported

2022-02-20 08:45

Signatures

N/A

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

"taskhost.exe"

Signatures

Ryuk

ransomware ryuk

Adds Run key to start application

persistence
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

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

N/A

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

sihost.exe

Signatures

Ryuk

ransomware 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

persistence
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

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 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

Description Indicator Process Target
PID 2648 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\System32\cmd.exe
PID 2648 wrote to memory of 3776 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\System32\cmd.exe
PID 2648 wrote to memory of 2204 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\sihost.exe
PID 3776 wrote to memory of 3696 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\reg.exe
PID 3776 wrote to memory of 3696 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\reg.exe
PID 2648 wrote to memory of 2224 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\svchost.exe
PID 2648 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\taskhostw.exe
PID 2648 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\svchost.exe
PID 2648 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\DllHost.exe
PID 2648 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
PID 2648 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\System32\RuntimeBroker.exe
PID 2648 wrote to memory of 3024 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
PID 2648 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\System32\RuntimeBroker.exe
PID 2648 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\System32\RuntimeBroker.exe
PID 2648 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\System32\RuntimeBroker.exe
PID 2648 wrote to memory of 2976 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\backgroundTaskHost.exe
PID 2648 wrote to memory of 2992 N/A C:\Users\Admin\AppData\Local\Temp\3081e7cb254917f64638d21e52f307e6e1661ab64b8adaa50568578d1c3e888f.exe C:\Windows\system32\backgroundTaskHost.exe
PID 2712 wrote to memory of 1828 N/A C:\Windows\system32\DllHost.exe C:\Windows\system32\WerFault.exe
PID 2712 wrote to memory of 1828 N/A C:\Windows\system32\DllHost.exe C:\Windows\system32\WerFault.exe
PID 1280 wrote to memory of 2816 N/A C:\Windows\system32\WerFault.exe C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
PID 1280 wrote to memory of 2816 N/A C:\Windows\system32\WerFault.exe C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe

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