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

File Encryption Patterns

Philadelphia modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..locked

Ransom Note and Payment Demands

After encrypting files, Philadelphia displays ransom notes demanding payment for file recovery:

message

Ransom message:

notes/note.txt

Note locations:

Login
fileHow to recover my files.txt

Ransom message:

notes/How to recover my files.txt

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with Philadelphia ransomware:

  • Isass.exe
  • 0.jpg
  • Philadelphia Ransomware
  • 0.exe
  • aa
  • PZWsw.rar
  • image.jpg.exe
  • philadelphia.exe
  • superx.exe
  • 6d21e538115bcf303.exe
  • 2017.2.16-10.Ransom.Philadelphia.exe
  • pinco.exe
  • delph1.dat
  • autc870.tmp
  • drivers.exe
  • DropToolTranslated.exe
  • scvhost.exe
  • 844273.exe

Recovery and Decryption Tools

Good news! Decryption tools are available for Philadelphia ransomware:

0

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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: October 30, 2025

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