General
-
Target
https://drive.google.com/uc?id=12WBT8qXg0FZyiIfnQfimIrN-sUpoTREP&export=download
-
Sample
240523-zjjyhsff7z
Malware Config
Extracted
C:\Users\Admin\Downloads\@[email protected]
wannacry
115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn
Targets
-
-
Target
https://drive.google.com/uc?id=12WBT8qXg0FZyiIfnQfimIrN-sUpoTREP&export=download
Score10/10-
UAC bypass
-
Wannacry
WannaCry is a ransomware cryptoworm.
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Downloads MZ/PE file
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Drops startup file
-
Executes dropped EXE
-
Loads dropped DLL
-
Modifies file permissions
-
Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
-
Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
-
Registers COM server for autorun
-
UPX packed file
Detects executables packed with UPX/modified UPX open source packer.
-
Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Legitimate hosting services abused for malware hosting/C2
-
Sets desktop wallpaper using registry
-
MITRE ATT&CK Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
6Indicator Removal
1File Deletion
1File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1