General
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Target
http://google.com
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Sample
241031-t4lpyssqbj
Score
10/10
Malware Config
Targets
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Target
http://google.com
Score10/10-
CryptoLocker
Ransomware family with multiple variants.
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Cryptolocker family
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Dharma family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (564) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Sets service image path in registry
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Drops startup file
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Adds Run key to start application
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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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Defense Evasion
Direct Volume Access
1Impair Defenses
1Safe Mode Boot
1Indicator Removal
2File Deletion
2Modify Registry
2