General
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Target
b90687658fb7f9454da31634cc64b844e4121d2a359b206d00999c88a543d7ec
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Size
371KB
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Sample
240320-m2fbtsfa85
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MD5
20b9261fe6cdfc31916fcb75b065f225
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SHA1
a323c491195c8a2caabd9aeed18152008b485e39
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SHA256
b90687658fb7f9454da31634cc64b844e4121d2a359b206d00999c88a543d7ec
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SHA512
a83b558a9820e03cfab908899e8ae5c150cb2509c23f11ddcb8e85b58dbd82d39d3f0047b17fe930caec0320ceae0211c4d3bf4fd7f4868e14d9c33f852f4ed8
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SSDEEP
6144:Y0LeYyBiqCw5wLzsEtA6We/p14a0q/fJ5/fzCH:WYyB7Cw+MEtA6db4pq/BNC
Static task
static1
Behavioral task
behavioral1
Sample
b90687658fb7f9454da31634cc64b844e4121d2a359b206d00999c88a543d7ec.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b90687658fb7f9454da31634cc64b844e4121d2a359b206d00999c88a543d7ec.exe
Resource
win10v2004-20240319-en
Malware Config
Extracted
C:\$Recycle.Bin\HOW TO BACK FILES.txt
targetcompany
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Extracted
C:\HOW TO BACK FILES.txt
targetcompany
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Targets
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Target
b90687658fb7f9454da31634cc64b844e4121d2a359b206d00999c88a543d7ec
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Size
371KB
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MD5
20b9261fe6cdfc31916fcb75b065f225
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SHA1
a323c491195c8a2caabd9aeed18152008b485e39
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SHA256
b90687658fb7f9454da31634cc64b844e4121d2a359b206d00999c88a543d7ec
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SHA512
a83b558a9820e03cfab908899e8ae5c150cb2509c23f11ddcb8e85b58dbd82d39d3f0047b17fe930caec0320ceae0211c4d3bf4fd7f4868e14d9c33f852f4ed8
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SSDEEP
6144:Y0LeYyBiqCw5wLzsEtA6We/p14a0q/fJ5/fzCH:WYyB7Cw+MEtA6db4pq/BNC
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 (3801) 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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