Analysis
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max time kernel
94s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
06/03/2025, 17:12
Static task
static1
Behavioral task
behavioral1
Sample
2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
Resource
win10v2004-20250217-en
General
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Target
2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
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Size
664KB
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MD5
581b4a169b1d11d5722d0b95652c4d72
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SHA1
e0f096905b10f064322469161261b5debee0cf5e
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SHA256
1b9212169964de38cc4cdca81ad08035309bd7eb633095c8e1319a0d06c20630
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SHA512
06e4d3dc738ad71773bdd9a5907ad7d1654155123654f50a7fe0ad75504bd6cfabc0572b7eb5386c2edf8c14fd1716954ee0247c1aa1b54e6ec5100c0a3e2332
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SSDEEP
12288:Ts9tAJdSoCU5qJSr1erWUM6i6FZJFzFgkAHHUzTshm8QvDF0Bc:OKSoCU5qJSr1erWzaZJFzFgkqeTIkD6c
Malware Config
Signatures
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Azov
A wiper seeking only damage, first seen in 2022.
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Azov family
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Renames multiple (535) 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 3 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
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bandera = "C:\\ProgramData\\rdpclient.exe" 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\H: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\I: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\S: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\W: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\B: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\G: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\M: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\N: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\Q: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\R: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\V: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\X: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\A: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\J: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\K: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\O: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\T: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\U: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\Y: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\Z: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\L: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened (read-only) \??\P: 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\jdk\pkcs11cryptotoken.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ko.properties 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\System\fr-FR\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\es-ES\sqlxmlx.rll.mui 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\unpack200.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\Installer\setup.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME-JAVAFX.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstatd.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\hy.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\pt-br.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\ru-RU\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Crashpad\settings.dat 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.NETCore.App.runtimeconfig.json 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\keytool.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-006E-0409-1000-0000000FF1CE}\misc.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\zh-CN\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\management\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ca.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ne.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Common Files\microsoft shared\ink\ar-SA\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsdeu.xml 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsid.xml 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\ConvertFromUnprotect.wmv 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Google\Chrome\Application\123.0.6312.123\MEIPreload\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ipsrus.xml 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\msedge.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\javafx\jpeg_fx.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\lib\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\javafx\public_suffix.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\legal\jdk\xerces.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\host\fxr\8.0.2\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jps.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\msedge_proxy.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\id.pak 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ml.pak 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\Welcome.html 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxslt.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\legal\jdk\relaxngdatatype.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ur.pak 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.147.37\MicrosoftEdgeUpdateCore.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\deploy\messages_fr.properties 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Windows Photo Viewer\ImagingDevices.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\legal\jdk\mesa3d.md 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\currency.data 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\pa-in.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File created C:\Program Files\RESTORE_FILES.txt 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\deploy\ffjcext.zip 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\lib\ext\nashorn.jar 2025-03-06_581b4a169b1d11d5722d0b95652c4d72_ryuk.exe
Processes
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d