General
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Target
839336eb8fb257995891f38bdae56ce0N.exe
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Size
2.4MB
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Sample
240716-hg8enazank
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MD5
839336eb8fb257995891f38bdae56ce0
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SHA1
878d55fc297dbc0f15f411f25aa52e05dec3c2ca
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SHA256
b985d398226fae83bb98e84312766760c3ff61ad88ee968bd90996ff87fbae59
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SHA512
cfb18c507fdf72d3edc222f963cb8aa21a767cd1ff589e890b00a5d7bb75a85a5647cec1cd4582859290b5b74bb586d3b835c346359f8470103e4a4f6e434a01
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SSDEEP
49152:7wX3TmeMrpRRQSAmo6GjgHdbNKGb1fdmXA/7qsopQq3lCF:7wX3q3lsbbPjg9pH1fJzqso
Static task
static1
Behavioral task
behavioral1
Sample
839336eb8fb257995891f38bdae56ce0N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
839336eb8fb257995891f38bdae56ce0N.exe
Resource
win10v2004-20240709-en
Malware Config
Extracted
C:\$Recycle.Bin\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
839336eb8fb257995891f38bdae56ce0N.exe
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Size
2.4MB
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MD5
839336eb8fb257995891f38bdae56ce0
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SHA1
878d55fc297dbc0f15f411f25aa52e05dec3c2ca
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SHA256
b985d398226fae83bb98e84312766760c3ff61ad88ee968bd90996ff87fbae59
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SHA512
cfb18c507fdf72d3edc222f963cb8aa21a767cd1ff589e890b00a5d7bb75a85a5647cec1cd4582859290b5b74bb586d3b835c346359f8470103e4a4f6e434a01
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SSDEEP
49152:7wX3TmeMrpRRQSAmo6GjgHdbNKGb1fdmXA/7qsopQq3lCF:7wX3q3lsbbPjg9pH1fJzqso
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 (7274) 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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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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