54. The method of claim 47 , wherein the one or more virtual machines are configured based on at least data associated with the PDF document in response to the one or more examined portions of the PDF documents being determined to include the one or more suspicious characteristics.
54. The method of claim 47 , wherein the one or more virtual machines are configured based on at least data associated with the PDF document in response to the one or more examined portions of the PDF documents being determined to include the one or more suspicious characteristics. 55. The method of claim 54 , wherein the one or more virtual machines are configured based on one or more specification version numbers of the PDF document.