fileRETURN FILES.txt
notes/RETURN FILES.txt
Location: RootDiscs, Desktop
Ransomware Research
Pdf Ransomware
Pdf is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- First Seen
- January 1, 2023
How Pdf ransomware works
File modification behavior
Pdf updates file modification timestamps after encryption.
File encryption patterns
Pdf modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
Ransom note and payment demands
After encrypting files, Pdf displays ransom notes demanding payment for file recovery:
fileInfo.hta
notes/Info.hta
Location: StartUp, Roaming
Technical indicators
Associated executable files
The following executable files are associated with Pdf ransomware:
- Strm
- Strm.exe
About this analysis
This Pdf ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Pdf.
Detection coverage
Elastio detects Pdf inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Pdf across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.