add: Gamaredon Group added

clusters/threat-actor.json

@@ -1375,6 +1375,15 @@
           "https://www.symantec.com/connect/blogs/greenbug-cyberespionage-group-targeting-middle-east-possible-links-shamoon"
         ]
       }
+    },
+    {
+      "value": "Gamaredon Group",
+      "description": "Unit 42 threat researchers have recently observed a threat group distributing new, custom developed malware. We have labelled this threat group the Gamaredon Group and our research shows that the Gamaredon Group has been active since at least 2013.  In the past, the Gamaredon Group has relied heavily on off-the-shelf tools. Our new research shows the Gamaredon Group have made a shift to custom-developed malware. We believe this shift indicates the Gamaredon Group have improved their technical capabilities.",
+      "meta": {
+        "refs": [
+          "http://researchcenter.paloaltonetworks.com/2017/02/unit-42-title-gamaredon-group-toolset-evolution"
+        ]
+      }
     }
   ],
   "name": "Threat actor",
@@ -1389,5 +1398,5 @@
   ],
   "description": "Known or estimated adversary groups targeting organizations and employees. Adversary groups are regularly confused with their initial operation or campaign.",
   "uuid": "7cdff317-a673-4474-84ec-4f1754947823",
-  "version": 15
+  "version": 16
 }