General
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Target
https://github.com/Endermanch/MalwareDatabase
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Sample
230407-spn14abd8v
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\Rar$EXb1496.6292\@[email protected]
wannacry
12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw
Targets
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Target
https://github.com/Endermanch/MalwareDatabase
Score10/10-
Wannacry
WannaCry is a ransomware cryptoworm.
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Downloads MZ/PE file
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Modifies system executable filetype association
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Registers COM server for autorun
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Legitimate hosting services abused for malware hosting/C2
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Sets desktop wallpaper using registry
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
Change Default File Association
1Registry Run Keys / Startup Folder
2Bootkit
1Hidden Files and Directories
1Defense Evasion
File Deletion
1File Permissions Modification
1Modify Registry
5Hidden Files and Directories
1