Maybe it is. I tried to scan the file with Virustotal and for the following is a Trojan:
Avast JS:Agent-ENC [Trj]
AVG JS:Agent-ENC [Trj]
ESET-NOD32 JS/Agent.RRL
Fortinet JS/Agent.ZQX!tr
Google Detected Ikarus Trojan.JS.Agent
Microsoft Trojan:JS/Obfuse.RJ!MTB
Rising Trojan.Obfus/JS!1.102B4 (CLASSIC)
Sophos JS/Agent-BKWR
Zillya Trojan.Agent.JS.31