Ransomware
DeathRansom
aka deathransom · wacatac
Also known as Wacatac ransomware due to its .wctc extension.
DeathRansom, also known as deathransom, wacatac, is a Windows ransomware.
Background
This ransomware is also referred to as Wacatac, a name derived from the .wctc extension it applies to encrypted files.
Source: Malpedia (Fraunhofer FKIE).