Analysis
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max time kernel
14s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
06/03/2025, 18:01
Static task
static1
Behavioral task
behavioral1
Sample
2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe
Resource
win10v2004-20250217-en
General
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Target
2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe
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Size
1.4MB
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MD5
4e3dd5db8abc66706e31ef77f116c26d
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SHA1
70e3514896f97c1be4403bb3a14533ab2f4cf162
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SHA256
c20778aa9cf82bf564aff137834c1f5063f08170e5653d1de8fe689bbd7a6fca
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SHA512
982d1d9ffc27f2d25d2c47a1571657056abc38abe4d2ecab020b3644155b605b690b2c07d854a18a5224a8c8cd7b2992270300f7f136e40adae9ab7e7fc43fcf
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SSDEEP
24576:+PRvMqB+5iNPKI7sfP0YlVa6xL88MfVeAgw5Z0cwnGbw:+PRvMqyiNh7sf8MVaKLvMflgwf0uw
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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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_4e3dd5db8abc66706e31ef77f116c26d_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) \??\A: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\B: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\O: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\Q: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\R: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\V: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\Y: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\G: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\H: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\I: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\J: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\K: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\M: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\N: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\W: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\E: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\L: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\P: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\T: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\U: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\X: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\Z: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened (read-only) \??\S: 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe -
Drops file in Program Files directory 28 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\Lang\ast.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\az.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ba.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\bn.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ca.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\descript.ion 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\History.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\br.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\da.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\de.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\en.ttt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\bg.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zG.exe 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\cy.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\el.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.sfx 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zCon.sfx 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\af.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File created C:\Program Files\7-Zip\Lang\RESTORE_FILES.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\an.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\ar.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\be.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\Lang\co.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File opened for modification C:\Program Files\7-Zip\7-zip.chm 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe File created C:\Program Files\7-Zip\RESTORE_FILES.txt 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2660 wrote to memory of 2448 2660 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe 29 PID 2660 wrote to memory of 2448 2660 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe 29 PID 2660 wrote to memory of 2448 2660 2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-06_4e3dd5db8abc66706e31ef77f116c26d_ryuk.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2660 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2660 -s 1682⤵PID:2448
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD578ede93114e65f9160fd03d3357c56e6
SHA188d531b101e57655f1d0d26c6b3257aa2468d460
SHA256c97412fbf88da8f91099a52888dea4c3f222cd95af3e681e3271cbca8b6b7bb5
SHA512074a4c741273902ccacb6f573b96d8accedb2ee405dbd04350cdbf54d180c1fd577a4e90c2aae26bf72f3782403f4494db6e3501a04cfd9d7d81a6bc14884b9d