From: Companies House [email@example.com]
Date: 4 September 2014 10:58
Subject: (AR01) Annual Return received
Thank you for completing a submission Reference # (1650722).
(AR01) Annual Return
Your unique submission number is 1650722
Please quote this number in any communications with Companies House.
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Attached is a malicious PDF file ar01_456746_09042014.pdf which has a VirusTotal detection rate of 5/54. The Malware Tracker report shows that this attempts to exploit the CVE-2013-2729 flaw that was patched over a year ago.. so it may well be that if your version of Acrobat is up-to-date then you will be OK, as you will probably be if you use another PDF reader.