Malware
Morpheus
aka HellCat
Ransomware. Identical samples (apart from note) operated by Morpheus and HellCat ransomware groups.
Morpheus, also known as HellCat, is a Windows malware family.
Background
A ransomware family whose payloads are identical to those of HellCat apart from the ransom note, with both the Morpheus and HellCat groups running the same code.
Source: Malpedia (Fraunhofer FKIE).