ryuk | 29824133432b929766e8287ad658b75ebfef08d62341c0bb338f239c6f114932

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-04-2024 03:55

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Report Analysis Logs

General

Target

2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe
Size

170KB
MD5

7f193964270dc3d207e4413890c95ab2
SHA1

e3b1b6adf8292e91234a455397d6496b5d92e322
SHA256

29824133432b929766e8287ad658b75ebfef08d62341c0bb338f239c6f114932
SHA512

16210a0ee45b1ea20921ea967e44ad569427960c8299840398c8024c7ef88d18ff4aaf18a6331bbc620992e6ae77c221a72381d136b9f4b1070d4cb788e410d4
SSDEEP

3072:2HeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpni:2+rA/WSo1rl3ALrlHQpni

Score

10^/10

ryuk persistence ransomware

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note

Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe

Emails

[email protected]

Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Signatures

Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
ransomware ryuk

Detects command variations typically used by ransomware 42 IoCs

resource	yara_rule
behavioral1/memory/1108-2-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-3-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-17-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-19-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-23-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-27-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-25-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-31-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-18-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-33-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-37-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-40-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-44-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-46-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-49-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-42-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-56-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-58-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-60-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-63-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-64-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-66-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-71-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-75-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-78-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-80-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-77-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-83-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-74-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-89-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-88-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-91-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-95-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-93-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-100-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-102-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-106-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-107-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-109-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-114-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1108-2122-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1160-2513-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Detects executables containing many references to VEEAM. Observed in ransomware 42 IoCs

resource	yara_rule
behavioral1/memory/1108-2-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-3-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-17-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-19-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-23-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-27-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-25-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-31-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-18-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-33-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-37-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-40-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-44-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-46-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-49-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-42-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-56-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-58-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-60-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-63-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-64-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-66-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-71-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-75-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-78-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-80-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-77-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-83-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-74-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-89-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-88-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-91-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-95-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-93-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-100-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-102-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-106-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-107-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-109-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-114-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1108-2122-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1160-2513-0x000000013FC20000-0x000000013FFAE000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe"	reg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\Lang\hy.txt	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Services\verisign.bmp	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Full\NavigationRight_SelectionSubpicture.png	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861261279.profile.gz	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.databinding.property.nl_zh_4.4.0.v20140623020002.jar	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Month_Calendar.emf	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+1	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.feature.rcp_5.5.0.165303\RyukReadMe.txt	taskhost.exe
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_.RSA	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\toc.gif	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui_3.106.0.v20140812-1751.jar	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sl.txt	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\hwrlatinlm.dat	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Guadalcanal	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Saipan	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.core.net.win32.x86_64.nl_ja_4.4.0.v20140623020002.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-2	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\be.txt	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\curtains.png	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\bin\NetworkServerControl.bat	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\title_trans_scene.wmv	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\javaws.policy	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Jayapura	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Madrid	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.emf.ecore.xmi_2.10.1.v20140901-1043.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\deploy\messages_zh_CN.properties	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.apache.batik.util.gui_1.7.0.v200903091627.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Antarctica\DumontDUrville	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Tahiti	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.directorywatcher.nl_ja_4.4.0.v20140623020002.jar	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_kor.xml	taskhost.exe
File opened for modification	C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\fr-FR\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\huemainsubpicture2.png	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.bidi_0.10.0.v20130327-1442.jar	taskhost.exe
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\ECLIPSE_.RSA	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\yo.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Anchorage	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.flightrecorder.ui.ja_5.5.0.165303.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.swt.theme_0.9.300.v20140424-2042.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.simpleconfigurator_1.1.0.v20131217-1203.jar	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\it.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\index.gif	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.css.swt.theme.nl_zh_4.4.0.v20140623020002.jar	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\boxed-correct.avi	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskmenu.xml	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Memories\Title_mainImage-mask.png	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\title_trans_notes.wmv	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Nome	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Bougainville	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rcp.application.zh_CN_5.5.0.165303.jar	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Notes_loop.wmv	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\LICENSE	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Helsinki	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\HST	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Port_Moresby	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\PST8PDT	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\passportcover.png	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Panama	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Jakarta	taskhost.exe
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	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.text.nl_zh_4.4.0.v20140623020002.jar	taskhost.exe
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\dark\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Metlakatla	taskhost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2488	2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe	28
PID 2868 wrote to memory of 2488	2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe	28
PID 2868 wrote to memory of 2488	2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe	28
PID 2868 wrote to memory of 1108	2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe	19
PID 2488 wrote to memory of 2264	2488	cmd.exe	30
PID 2488 wrote to memory of 2264	2488	cmd.exe	30
PID 2488 wrote to memory of 2264	2488	cmd.exe	30
PID 2868 wrote to memory of 1160	2868	2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe	20

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
- Drops file in Program Files directory
PID:1108

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Users\Admin\AppData\Local\Temp\2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2868
- 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\2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2488
- - 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\2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk.exe" /f
    3⤵
    - Adds Run key to start application
    PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\RyukReadMe.txt

Filesize
804B

MD5
cd99cba6153cbc0b14b7a849e4d0180f

SHA1
375961866404a705916cbc6cd4915de7d9778923

SHA256
74c43a177917b1d57ea2eaf6212ccf3b9012b4d68bc45284349443eed0bf5ee2

SHA512
0c9f250c0e2ec9736b072a9807b6c3bec4b670ab2f511e65cf5d79e9a8c9a209eb91736ce2765b52b6d94a57c6aa1c16bb08e16727660699b70608439c8b7cda

Download Submit
memory/1108-64-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-17-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-2-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-0-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-19-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-23-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-27-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-25-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-31-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-18-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-33-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-37-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-40-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-44-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-46-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-66-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-42-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-56-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-58-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-60-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-2122-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-3-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-49-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-71-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-75-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-78-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-80-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-77-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-83-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-74-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-89-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-88-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-91-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-95-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-93-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-100-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-102-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-106-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-107-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-109-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-114-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1108-63-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download
memory/1160-2513-0x000000013FC20000-0x000000013FFAE000-memory.dmp

Filesize
3.6MB

Download