Malware
MISTCLOAK
aka HIUPAN
Mandiant associates this with UNC4191, this malware decrypts and runs DARKDEW.
MISTCLOAK, also known as HIUPAN, is a Windows malware family.
Background
Mandiant ties this malware to UNC4191; it decrypts and executes DARKDEW.
Source: Malpedia (Fraunhofer FKIE).