General
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Target
4a74aa6b5fbac25a977d2078f054d72b707aa54caa386dc90795c7983c848a34
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Size
371KB
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Sample
240320-mrt28seg76
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MD5
7e926b091935b2cf296d76500ce90ddb
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SHA1
71776753b7129a668f97702b507c0393f31d57d9
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SHA256
4a74aa6b5fbac25a977d2078f054d72b707aa54caa386dc90795c7983c848a34
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SHA512
4213a9532e0495504020c3a12c6e31a910fc3d6f8a1aea1dc77a1692aa0d118e19fc254bb54885f83cf6e96a068948d3d91e59bd3fe0bd02b5663b399ddb1cf6
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SSDEEP
6144:I097gaDpav2JwnXJfE7CxJw1CB3y6tGeKI50WbIZ:JgaDQv2OZfE7S0Cty+trI
Static task
static1
Behavioral task
behavioral1
Sample
4a74aa6b5fbac25a977d2078f054d72b707aa54caa386dc90795c7983c848a34.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
4a74aa6b5fbac25a977d2078f054d72b707aa54caa386dc90795c7983c848a34.exe
Resource
win10v2004-20231215-en
Malware Config
Extracted
F:\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
4a74aa6b5fbac25a977d2078f054d72b707aa54caa386dc90795c7983c848a34
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Size
371KB
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MD5
7e926b091935b2cf296d76500ce90ddb
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SHA1
71776753b7129a668f97702b507c0393f31d57d9
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SHA256
4a74aa6b5fbac25a977d2078f054d72b707aa54caa386dc90795c7983c848a34
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SHA512
4213a9532e0495504020c3a12c6e31a910fc3d6f8a1aea1dc77a1692aa0d118e19fc254bb54885f83cf6e96a068948d3d91e59bd3fe0bd02b5663b399ddb1cf6
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SSDEEP
6144:I097gaDpav2JwnXJfE7CxJw1CB3y6tGeKI50WbIZ:JgaDQv2OZfE7S0Cty+trI
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 (7311) 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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