Analysis
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max time kernel
92s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
11-06-2024 12:48
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe
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Size
664KB
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MD5
32a690c021208b450ac8c174fcf7300d
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SHA1
7491b337541c9e9531b65a15e31c0e16ccc39796
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SHA256
4ba82612c95063996d8576ac96fb570845fc7826d5cdc571c24a07a3c967d0b8
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SHA512
9f3806b8e5c7c34fa71bb584a2322a2a4eab88818aaf4fb182bb48d48d57c670741659da295624c8b51773e1cc192c950eeeb0e1af1ae8e6d82b5300ca9ec669
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SSDEEP
12288:is9ge6iSoCU5qJSr1eFt1U1Mqee4e0qbDgsA7HUzTshDsZfvGmW:m8SoCU5qJSr1en18l4e0qbDgsKeT+so
Malware Config
Signatures
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Azov
A wiper seeking only damage, first seen in 2022.
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Renames multiple (593) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bandera = "C:\\ProgramData\\rdpclient.exe" 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exedescription ioc process File opened (read-only) \??\I: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\K: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\W: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\B: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\J: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\M: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\N: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\E: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\S: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\T: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\X: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\Z: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\A: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\G: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\H: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\L: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\O: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\P: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\Q: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\R: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\U: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\V: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened (read-only) \??\Y: 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe -
Drops file in Program Files directory 64 IoCs
Processes:
2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exedescription ioc process File opened for modification C:\Program Files\Common Files\System\ado\msado60.tlb 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\es-419.pak 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Java\jdk-1.8\include\win32\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\dotnet\swidtag\Microsoft Windows Desktop Runtime - 8.0.2 (x64).swidtag 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\security\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstat.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\javafx\icu_web.md 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\jdk\jcup.md 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\io.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\yo.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\management-agent.jar 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Java\jdk-1.8\legal\javafx\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\javafx.properties 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\descript.ion 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.runtimeconfig.json 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\javafx.properties 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\110.0.5481.104\VisualElements\SmallLogoBeta.png 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\InstallFormat.mpeg3 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\limited\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\si.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaw.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Java\jre-1.8\lib\deploy\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\fonts\LucidaBrightItalic.ttf 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-GB\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\VSTO\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\110.0.5481.104\VisualElements\LogoCanary.png 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\mip.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsen.xml 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Common Files\System\ado\en-US\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\cmm\CIEXYZ.pf 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\deploy\messages_pt_BR.properties 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\ext\zipfs.jar 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\he.pak 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\Java\jre-1.8\lib\amd64\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\fr-FR\sqloledb.rll.mui 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jdb.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\charsets.jar 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\lt.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\GrantMerge.dotx 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\jdk\dynalink.md 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-000F-0000-1000-0000000FF1CE}\wordicon.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\7-Zip\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zG.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\include\jdwpTransport.h 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\deploy\messages.properties 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Windows Media Player\wmlaunch.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\include\win32\jawt_md.h 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\RESTORE_FILES.txt 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jhat.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javacpl.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\110.0.5481.104\icudtl.dat 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\misc.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files (x86)\Internet Explorer\ielowutil.exe 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\include\jni.h 2024-06-11_32a690c021208b450ac8c174fcf7300d_ryuk.exe
Processes
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d