General
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Target
Reader.img
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Size
544KB
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Sample
240909-ybl78swdlm
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MD5
d201bd19e60d500963aff0c235b07727
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SHA1
341552a8650d2bdad5f3ec12e333e3153172ee66
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SHA256
d6629a9b618ede05e9e75a2cebfb69bc7b1a34fe00a42ff60d88828a307c0d08
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SHA512
4afa7da1bf2a86dc9a3b94b674ecffea638304c42c43c955631bbe29c605be673b7182ed1fcb8997c55c6bbd2a48e5ec46177e8327e9e903781d1ffb2abd991c
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SSDEEP
6144:h0wmbI4/Z4SHvrxw6zaIST1w9wEPDasWxxsBhS37b8o6XCFyPwCMa6qnXxq/y:Gzv66zaISTW9asWxxAh4IlXC4PUqBq/
Static task
static1
Behavioral task
behavioral1
Sample
Reader.lnk
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Reader.lnk
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
red.exe
Resource
win7-20240729-en
Behavioral task
behavioral4
Sample
red.exe
Resource
win10v2004-20240802-en
Malware Config
Extracted
C:\HOW TO BACK FILES.txt
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Extracted
\Device\HarddiskVolume1\HOW TO BACK FILES.txt
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Targets
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Target
Reader.lnk
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Size
2KB
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MD5
66bb9363e23c7ef2d16c89cd654b491e
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SHA1
c20e8d536804cf97584eec93d9a89c09541155bc
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SHA256
61f36c5ae038faa2b58a9a17b464d01414b4265e46634f353319c471d0a35789
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SHA512
b7a751e49218230d574ca9cc4cbbb1995d89798268124b1617889c7558c66902f81fdb77a299edcc6d96452cec81adb76768172710e00c9272d30821ab0089c5
Score9/10-
Modifies boot configuration data using bcdedit
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Target
red.exe
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Size
478KB
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MD5
71efe7a21da183c407682261612afc0f
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SHA1
0f1aea2cf0c9f2de55d2b920618a5948c5e5e119
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SHA256
45a236e7aa80515aafb6c656c758faad6e77fb435b35bfa407aef3918212078d
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SHA512
3cff597dbd7f0d5ab45b04e3c3731e38626b7b082a0ede7ab9a7826921848edb3c033f640da2cb13916febf84164f7415ca9ac50c3d927f04d9b61fcadb7801c
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SSDEEP
6144:W0wmbI4/Z4SHvrxw6zaIST1w9wEPDasWxxsBhS37b8o6XCFyPwCMa6qnXxq/y:7zv66zaISTW9asWxxAh4IlXC4PUqBq/
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 (7245) 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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