I think the bitcoin will fall because of RANSOMWARE,it is impossible/Difficult to track who did this and in futur Bitcoins will be considered as a motivation mean for such act
I don't think that will fall because of ransomware because Bitcoin is most safe money in the Internet market where no one can Beat car security system because the security of Bitcoins like military .
System programming of Bitcoin working up on the algorithm sha256 , And also there are many altvoins which are based upon the Sha algorithm , so they can use another altcoins also .
Well here Bitcoin is currently in the trend to use Bitcoin in online easily , so they are using Bitcoin only , here a strange report came from the medea that most.of the people can't send Bitcoin to the ransomeware attack because they don't know about Bitcoin .
So here I think is bitcoin has a better opportunity to become famous again to the Ransomeware attack .