General
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Target
24f87a466c2eab7d0f12395c9fca85341634118e73c0873c8cb20a2a0d542d0d
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Size
1.1MB
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Sample
240320-mxz6faff4z
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MD5
8a06bf225a02443997e5988f2e5b18f5
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SHA1
15fc57d17087398fb3b05713668f4845c44073e7
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SHA256
24f87a466c2eab7d0f12395c9fca85341634118e73c0873c8cb20a2a0d542d0d
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SHA512
a91e2dbe2a927511e4dd807c6c7b93096213aa0d36fa9aea47c1c73ea62c086ea962ae37a77dd77faacedee16f4a73dfa057a0b7974cc73769fd6d0a7d8e123e
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SSDEEP
12288:+POkkIgDU/SQFudU3vSu3nmNxH2kIQzQq2ltfvdO6I0OdOYkqvWF7raSRvdc8OKP:+6XUqzIfvdBfkHhedFR5q0egN
Static task
static1
Behavioral task
behavioral1
Sample
24f87a466c2eab7d0f12395c9fca85341634118e73c0873c8cb20a2a0d542d0d.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
24f87a466c2eab7d0f12395c9fca85341634118e73c0873c8cb20a2a0d542d0d.exe
Resource
win10v2004-20240226-en
Malware Config
Extracted
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\HOW TO BACK FILES.txt
targetcompany
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Extracted
C:\Users\Admin\Contacts\HOW TO BACK FILES.txt
targetcompany
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Targets
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Target
24f87a466c2eab7d0f12395c9fca85341634118e73c0873c8cb20a2a0d542d0d
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Size
1.1MB
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MD5
8a06bf225a02443997e5988f2e5b18f5
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SHA1
15fc57d17087398fb3b05713668f4845c44073e7
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SHA256
24f87a466c2eab7d0f12395c9fca85341634118e73c0873c8cb20a2a0d542d0d
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SHA512
a91e2dbe2a927511e4dd807c6c7b93096213aa0d36fa9aea47c1c73ea62c086ea962ae37a77dd77faacedee16f4a73dfa057a0b7974cc73769fd6d0a7d8e123e
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SSDEEP
12288:+POkkIgDU/SQFudU3vSu3nmNxH2kIQzQq2ltfvdO6I0OdOYkqvWF7raSRvdc8OKP:+6XUqzIfvdBfkHhedFR5q0egN
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Detect ZGRat V1
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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 (7161) 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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Modifies file permissions
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Adds Run key to start application
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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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Suspicious use of SetThreadContext
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