Files with kkk file extension can be also found as encrypted and renamed files affected by the Jigsaw ransomware.
There is one other file type using
the KKK file extension!
.kkk - Filmetrics F20 material data
KKK file extension - Jigsaw Ransomware affected data
What is kkk file? How to open kkk files?
File type specification:
The kkk file extension is also related to a ransomware labeled as Jigsaw. Much like similar ransomware it encrypts users files and demands ransom to be paid in bitcoins.
This particular ransomware masks itself as Firefox executable and process.