Feb 2016 ICIT published a profile of 40 Threat Actors

Know you enemy 2.0 publication 

According to ICIT report the top three countries hosting these Threat Actors are Russia, China and USA. 14 of them form Russia, 9 from china, and 5 from USA.

Most of these actors are well organized groups some sponsored by national states. Motivation behind the actors include crime, defense, theft, common cause and others.

“The conglomeration of hacktivists, state sponsored hackers and cyber mercenaries are continuously targeting American corporations, organizations, Universities and government Networks. American industry as a whole is an easy target because seasoned adversaries are breaching virtually defenseless networks.”  ICIT.

Refer the following link for detail of the report

http://icitech.org/know-your-enemies-2-0/