General
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Target
e724df98ce87ea905e9923017c94322059f1919d27bf6f70d38e2a353ff3a569.exe
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Size
4.8MB
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Sample
210501-a2jhsv18s2
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MD5
739562b08a6131cce604c0e7ffa1a07d
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SHA1
eabe2b22d6af539871b81625c0c3a3efb58afd90
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SHA256
e724df98ce87ea905e9923017c94322059f1919d27bf6f70d38e2a353ff3a569
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SHA512
457dd85e77bf9bd32275230185b7c350245729afeb7c0eaa50a52bbdc109ed41a0d9a4ecf16a186c3bf163f31e86d91060dcb7f7d64494bcb5f6ee21d8f32c9f
Static task
static1
Behavioral task
behavioral1
Sample
e724df98ce87ea905e9923017c94322059f1919d27bf6f70d38e2a353ff3a569.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
e724df98ce87ea905e9923017c94322059f1919d27bf6f70d38e2a353ff3a569.exe
Resource
win10v20210410
Malware Config
Extracted
http://myexternalip.com/raw
Targets
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Target
e724df98ce87ea905e9923017c94322059f1919d27bf6f70d38e2a353ff3a569.exe
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Size
4.8MB
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MD5
739562b08a6131cce604c0e7ffa1a07d
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SHA1
eabe2b22d6af539871b81625c0c3a3efb58afd90
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SHA256
e724df98ce87ea905e9923017c94322059f1919d27bf6f70d38e2a353ff3a569
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SHA512
457dd85e77bf9bd32275230185b7c350245729afeb7c0eaa50a52bbdc109ed41a0d9a4ecf16a186c3bf163f31e86d91060dcb7f7d64494bcb5f6ee21d8f32c9f
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Matrix Ransomware
Targeted ransomware with information collection and encryption functionality.
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Modifies boot configuration data using bcdedit
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Blocklisted process makes network request
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Drops file in Drivers directory
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Executes dropped EXE
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Sets service image path in registry
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Loads dropped DLL
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Modifies file permissions
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Drops desktop.ini file(s)
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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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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v6
Persistence
Hidden Files and Directories
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
File Deletion
2File and Directory Permissions Modification
1Hidden Files and Directories
1Modify Registry
2