Malware Analysis Report

2024-10-19 06:15

Sample ID 220220-jtvvrsbdar
Target 43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5
SHA256 43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5
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

43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5

Threat Level: Known bad

The file 43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5 was found to be: Known bad.

Malicious Activity Summary

ryuk persistence ransomware

Ryuk

Suspicious use of NtCreateProcessExOtherParentProcess

Checks computer location settings

Adds Run key to start application

Drops file in Program Files directory

Enumerates physical storage devices

Program crash

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-02-20 07:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-02-20 07:58

Reported

2022-02-20 09:11

Platform

win7-en-20211208

Max time kernel

177s

Max time network

159s

Command Line

"C:\Windows\system32\Dwm.exe"

Signatures

Ryuk

ransomware ryuk

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\reg.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.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\mk.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\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\Kabul C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861258748.profile.gz C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.metadata.repository_1.2.100.v20131209-2144.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-templates.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\css\high-contrast.css C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Seyes.emf C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DissolveNoise.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_trans_MATTE_PAL.wmv C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\Filters.xml C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\North_Dakota\Beulah C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Rangoon C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.jface.text_3.9.1.v20140827-1810.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.win32.nl_zh_4.4.0.v20140623020002.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-openide-nodes_zh_CN.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-selector-api_ja.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Genko_2.emf C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\LayeredTitles\NavigationUp_ButtonGraphic.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\VideoWall\203x8subpicture.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Juneau C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.touchpoint.eclipse_2.1.200.v20140512-1650.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-swing-outline_zh_CN.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-modules-templates.xml C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Denver C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Port_of_Spain C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\RyukReadMe.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.services_1.1.0.v20140328-1925.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.simpleconfigurator.nl_zh_4.4.0.v20140623020002.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\locale\org-netbeans-modules-profiler-heapwalker_ja.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\Bear_Formatted_MATTE2_PAL.wmv C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\NavigationUp_SelectionSubpicture.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\fonts\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\Baghdad C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_ja_4.4.0.v20140623020002\about.html C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.workbench.addons.swt.nl_zh_4.4.0.v20140623020002.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\OldAge\vintage.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Brunei C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ui.nl_zh_4.4.0.v20140623020002.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\META-INF\RyukReadMe.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwrdeslm.dat C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\RyukReadMe.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_trans_rgb.wmv C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-ui_ja.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-options-api_zh_CN.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\he.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\heart_glass_Thumbnail.bmp C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Indian\Cocos C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.h C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\jvm.hprof.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\META-INF\eclipse.inf C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-modules-autoupdate-services.xml C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-autoupdate-cli_ja.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\OldAge\decorative_rule.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.artifact.repository_1.1.300.v20131211-1531.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.workbench.nl_ja_4.4.0.v20140623020002.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\gl.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.expressions_3.4.600.v20140128-0851.jar C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\lib\deployed\jdk15\RyukReadMe.txt C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Soft Blue.htm 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\ResizingPanels\NavigationUp_SelectionSubpicture.png C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Puerto_Rico C:\Windows\system32\taskhost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Dushanbe 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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe N/A

Processes

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe

"C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe" /f

Network

N/A

Files

memory/752-54-0x000007FEFBE11000-0x000007FEFBE13000-memory.dmp

memory/1228-55-0x000000013F8A0000-0x000000013FC2E000-memory.dmp

memory/1228-57-0x000000013F8A0000-0x000000013FC2E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-02-20 07:58

Reported

2022-02-20 09:11

Platform

win10v2004-en-20220112

Max time kernel

186s

Max time network

206s

Command Line

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

Signatures

Ryuk

ransomware ryuk

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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.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\\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.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\fi.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\fsdefinitions\main\base.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\System\Ole DB\en-US\sqlxmlx.rll.mui 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\Java\jdk1.8.0_66\include\win32\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\net.properties 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.rcp_5.5.0.165303\feature.properties C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\mk.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\7-Zip\Lang\he.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\ko-kr.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyoptionaltools.jar C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\images\cursors\win32_CopyNoDrop32x32.gif C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\security\java.security C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\jvm.lib C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\ga.txt 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\jre\lib\ext\jaccess.jar C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\security\java.policy C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\RyukReadMe.txt 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\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\Common Files\microsoft shared\ink\Content.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsesp.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\pt-BR\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\th-TH\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\System\msadc\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\jfxswt.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\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\symbase.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
File opened for modification C:\Program Files\Common Files\System\msadc\ja-JP\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Internet Explorer\images\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
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\an.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\et-EE\RyukReadMe.txt 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\Common Files\microsoft shared\ink\uk-UA\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\db\bin\startNetworkServer.bat C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\db\lib\derbyLocale_pt_BR.jar C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\fonts\LucidaBrightItalic.ttf C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipscht.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\db\lib\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\System\ado\msado25.tlb C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\jre\lib\images\RyukReadMe.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.rcp.product_5.5.0.165303\feature.properties C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\lv.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknav\osknavbase.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipscsy.xml C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\OFFICE16\Office Setup Controller\pkeyconfig-office.xrm-ms C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\va.txt 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\jre\lib\fonts\LucidaTypewriterRegular.ttf C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Java\jdk1.8.0_66\db\README-JDK.html C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\hy.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\microsoft shared\ink\sk-SK\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Common Files\System\ado\es-ES\RyukReadMe.txt C:\Windows\system32\sihost.exe N/A
File opened for modification C:\Program Files\Internet Explorer\en-US\RyukReadMe.txt 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\Common Files\microsoft shared\ink\ipsnld.xml 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

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\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\WerFault.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\system32\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\system32\WerFault.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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3512 wrote to memory of 3812 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\System32\cmd.exe
PID 3512 wrote to memory of 3812 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\System32\cmd.exe
PID 3512 wrote to memory of 2228 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\sihost.exe
PID 3812 wrote to memory of 1616 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\reg.exe
PID 3812 wrote to memory of 1616 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\reg.exe
PID 3512 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\svchost.exe
PID 3512 wrote to memory of 2296 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\taskhostw.exe
PID 3512 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\svchost.exe
PID 3512 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\DllHost.exe
PID 3512 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
PID 3512 wrote to memory of 2984 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\System32\RuntimeBroker.exe
PID 3512 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
PID 3512 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\System32\RuntimeBroker.exe
PID 3512 wrote to memory of 3324 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\System32\RuntimeBroker.exe
PID 3512 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\System32\RuntimeBroker.exe
PID 3512 wrote to memory of 4056 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\backgroundTaskHost.exe
PID 3512 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\backgroundTaskHost.exe
PID 3512 wrote to memory of 1548 N/A C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe C:\Windows\system32\BackgroundTransferHost.exe
PID 2744 wrote to memory of 2220 N/A C:\Windows\system32\DllHost.exe C:\Windows\system32\WerFault.exe
PID 2744 wrote to memory of 2220 N/A C:\Windows\system32\DllHost.exe C:\Windows\system32\WerFault.exe
PID 1844 wrote to memory of 2744 N/A C:\Windows\system32\WerFault.exe C:\Windows\system32\DllHost.exe
PID 1844 wrote to memory of 2744 N/A C:\Windows\system32\WerFault.exe C:\Windows\system32\DllHost.exe
PID 2024 wrote to memory of 2904 N/A C:\Windows\system32\WerFault.exe C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
PID 2024 wrote to memory of 2904 N/A C:\Windows\system32\WerFault.exe C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
PID 2204 wrote to memory of 1548 N/A C:\Windows\system32\WerFault.exe C:\Windows\system32\BackgroundTransferHost.exe
PID 2204 wrote to memory of 1548 N/A C:\Windows\system32\WerFault.exe C:\Windows\system32\BackgroundTransferHost.exe

Processes

C:\Windows\system32\taskhostw.exe

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

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\RuntimeBroker.exe

C:\Windows\System32\RuntimeBroker.exe -Embedding

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\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\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe

"C:\Users\Admin\AppData\Local\Temp\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe"

C:\Windows\system32\BackgroundTransferHost.exe

"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1

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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.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\43a3b16216f966be5ec1b394f31d521877ba20894f218641fa8f5e6928279dc5.exe" /f

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 488 -p 2904 -ip 2904

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 460 -p 1548 -ip 1548

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 452 -p 2744 -ip 2744

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2744 -s 1012

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1548 -s 2592

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2744 -s 1012

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2904 -s 2940

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp
US 72.21.91.29:80 tcp

Files

memory/2228-130-0x00007FF7F5B50000-0x00007FF7F5EDE000-memory.dmp

memory/2528-131-0x00007FF7F5B50000-0x00007FF7F5EDE000-memory.dmp

C:\Users\Admin\AppData\Local\Packages\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\AC\BackgroundTransferApi\2e2866ff-09db-427a-af72-33efc7e64417.down_data

MD5 277045b438381976db11df58d45356e8
SHA1 061ba64b6dad4e3b79530d9c0f0ba68d0039f824
SHA256 53f323bb21ed9bf93e5763be0260db87433256dd40b7f3768cb15f5570b305a4
SHA512 b86f64924592649d2a1164404abc1acedf535fb6bc9f7b048392771484e97f2833ee282652096e6906f9fa0918f4dc031fefda3f0f5b42a7ea18d40fb34125b7