Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
31/01/2025, 00:28
Static task
static1
Behavioral task
behavioral1
Sample
2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe
Resource
win10v2004-20250129-en
General
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Target
2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe
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Size
1.4MB
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MD5
c709fcc8767c92ca14f080705c228931
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SHA1
8508209071f716c458a0db37b8aeea8af506fcd9
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SHA256
02f0b0afafe30a1919124d206216267689456712153d62fb0c1a701ba798420e
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SHA512
10f9cd08a78e1d26fa7ff648356a11a6072fac65a36e3bf806e800b53e070f509cc0e96359e539597874f39762de6ab09652ca63f019250e4f1c2a3224923226
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SSDEEP
24576:CnVWepdnTz8+a2rEok143lqFcxM9q3N2fVevgw5Z0NBti3a:CnVWUNz8KrEo4PFcx4qd2fOgwf0NBn
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" 2025-01-31_c709fcc8767c92ca14f080705c228931_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) \??\I: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\L: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\R: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\Y: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\E: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\K: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\O: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\S: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\U: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\A: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\G: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\J: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\M: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\Q: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\W: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\X: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\B: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\H: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\N: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\P: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\T: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\V: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened (read-only) \??\Z: 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe -
Drops file in Program Files directory 5 IoCs
description ioc Process File created C:\Program Files\7-Zip\RESTORE_FILES.txt 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.sfx 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened for modification C:\Program Files\7-Zip\7z.exe 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened for modification C:\Program Files\7-Zip\7zFM.exe 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe File opened for modification C:\Program Files\7-Zip\7-zip.chm 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1452 wrote to memory of 2380 1452 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe 30 PID 1452 wrote to memory of 2380 1452 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe 30 PID 1452 wrote to memory of 2380 1452 2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-31_c709fcc8767c92ca14f080705c228931_ryuk.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1452 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1452 -s 1602⤵PID:2380
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