Files with wflx suffix may be usually found as files encrypted by the WildFire ransomware.
WFLX file extension - WildFire ransomware affected file
What is wflx file? How to open wflx files?
File type specification:
File extension wflx is infamously associated with a ransomware labeled as WildFire that is distributed via e-mails, encrypts users files and them demands ransom in bitcoins for their recovery.
This particular ransomware is distributed via e-mails with a macro-embedded Word document attached.
Note: It appears that this ransomware was rebranded in October 2016 to Hades and now uses semi random suffix made up of the string ".~HL" plus the first 5 letters of the encryption password. For example, file.doc would be encrypted as file.doc.~HLX1234.