General
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Target
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk
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Size
6.0MB
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Sample
240324-k1x45sea4v
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MD5
0e6499821deca6f63088c663f60a76c8
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SHA1
6ea2d58bed19655e0d79c01732890fd038e5fbbe
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SHA256
35bee472f429d47826926cc39acff42c5049d256666b2c7fa525766e863bfbe7
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SHA512
cb626f197672a632fc145f96da8114927bdfa7620135e90dcd48504332d8e00f2c5e44d97c3042481569839c8db01a2a1b3edab2e7c52907c2a2ef064eeeb765
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SSDEEP
98304:9caoZQU7LgG4PwVIsWE61NQq7vW+WHTemGoMF:9c1uUwfHNQqYTemGoMF
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk.exe
Resource
win10v2004-20240226-en
Malware Config
Extracted
\Device\HarddiskVolume1\HOW TO BACK FILES.txt
targetcompany
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Targets
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Target
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk
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Size
6.0MB
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MD5
0e6499821deca6f63088c663f60a76c8
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SHA1
6ea2d58bed19655e0d79c01732890fd038e5fbbe
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SHA256
35bee472f429d47826926cc39acff42c5049d256666b2c7fa525766e863bfbe7
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SHA512
cb626f197672a632fc145f96da8114927bdfa7620135e90dcd48504332d8e00f2c5e44d97c3042481569839c8db01a2a1b3edab2e7c52907c2a2ef064eeeb765
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SSDEEP
98304:9caoZQU7LgG4PwVIsWE61NQq7vW+WHTemGoMF:9c1uUwfHNQqYTemGoMF
Score10/10-
TargetCompany,Mallox
TargetCompany (aka Mallox) is a ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.
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Modifies boot configuration data using bcdedit
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Renames multiple (7128) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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