General
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Target
Vcefjs.exe
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Size
4.0MB
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Sample
240225-m3r21sah41
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MD5
caf24129e3390f725043109aac706216
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SHA1
fcab12917754dc309079d429e57411b6e789d534
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SHA256
2a42f0644b4bb46902e705e07d0ea508a4e8b7ebc97380cc6ba1783b588da38d
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SHA512
7953a996059d46bd1016558724147ccb3631476153ce635877586c431bb1bdd46d3a71e84ba3f7f3da71c5fd1dfe8bd34c1abb8635ae603cf33c015a2b99e62e
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SSDEEP
24576:prs3R2HRYy+a3xyuZ6J0swCd/MHDddHwGei/yIzaY79QWTIgyTeSf:YR2xYyf9/mH
Static task
static1
Behavioral task
behavioral1
Sample
Vcefjs.exe
Resource
win10v2004-20240221-en
Malware Config
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
Vcefjs.exe
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Size
4.0MB
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MD5
caf24129e3390f725043109aac706216
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SHA1
fcab12917754dc309079d429e57411b6e789d534
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SHA256
2a42f0644b4bb46902e705e07d0ea508a4e8b7ebc97380cc6ba1783b588da38d
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SHA512
7953a996059d46bd1016558724147ccb3631476153ce635877586c431bb1bdd46d3a71e84ba3f7f3da71c5fd1dfe8bd34c1abb8635ae603cf33c015a2b99e62e
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SSDEEP
24576:prs3R2HRYy+a3xyuZ6J0swCd/MHDddHwGei/yIzaY79QWTIgyTeSf:YR2xYyf9/mH
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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 (6498) 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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