To survive, Macro downloaders have to constantly develop new techniques for evading sandbox environments and anti-virus applications. Recently, Fortinet spotted a malicious document macro designed to bypass Microsoft Windows’ UAC security and execute Fareit, an information stealing malware, with high system privilege.
Article Link: http://blog.fortinet.com/2016/12/16/malicious-macro-bypasses-uac-to-elevate-privilege-for-fareit-malware