GandCrab ransomware encrypt user file with GDCB extension and renders them void. It is disseminated via exploits Kits such as RIG EK,GrandSoft EK, EITest campaign (compromised websites), and the Necurs botnet MalSpam campaign. GandCrab is the first ransomware that wants it ransom in DASH Crypto-Currency. VirusTotal report can be found in here.