Ransomware Research
Philadelphia Ransomware
Philadelphia is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Philadelphia
- First Seen
- December 1, 2016
How Philadelphia Ransomware Works
Targeted Files
https://www.hybrid-analysis.com/sample/6d21e538115bcf30354360e81969cc5b438e5cd5be48eebf6243cc37e06cff0c?environmentId=100 Encrypts filenames -> F0A622CBCD1BCD5A18E73AF3EC8AACD4.locked
File Encryption Patterns
Philadelphia modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lockedRansom Note and Payment Demands
After encrypting files, Philadelphia displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginHow to recover my files.txtRansom message:
notes/How to recover my files.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Philadelphia ransomware:
Isass.exe0.jpgPhiladelphia Ransomware0.exeaaPZWsw.rarimage.jpg.exephiladelphia.exesuperx.exe6d21e538115bcf303.exe2017.2.16-10.Ransom.Philadelphia.exepinco.exedelph1.datautc870.tmpdrivers.exeDropToolTranslated.exescvhost.exe844273.exe
Recovery and Decryption Tools
Good news! Decryption tools are available for Philadelphia ransomware:
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Elastio Can Help You
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About This Analysis
This Philadelphia ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like Philadelphia.
Last updated: July 30, 2025