Ransomware Research
Sapphire Ransomware
Sapphire is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Sapphire
- First Seen
- September 1, 2019
How Sapphire Ransomware Works
Targeted Files
819190f5d012d3267c1bc6294da9f50060316bb146aacbc61863094959e1afe7 creates empty ransom notes The location of such a ransom notes is the path from where the sample started.
File Encryption Patterns
Sapphire modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..sapphire..fbiRansom Note and Payment Demands
After encrypting files, Sapphire displays ransom notes demanding payment for file recovery:
/^readme(-[1-4])?\.txt$/Ransom message:
notes/readme-4.txt
decryptfiles.htmlRansom message:
notes/decryptfiles.html
LOCKEDBYFBI.htaRansom message:
notes/LOCKEDBYFBI.hta
Technical Indicators
Associated Executable Files
The following executable files are associated with Sapphire ransomware:
Sapphire Ransomware.exeCredit Card Frauder.exe
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About This Analysis
This Sapphire 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 Sapphire.
Last updated: July 30, 2025