old_contents: # Copyright (C) 2010-2015 Cuckoo Foundation.
  # This file is part of Cuckoo Sandbox - http://www.cuckoosandbox.org
  # See the file 'docs/LICENSE' for copying permission.
  
  from _winreg import HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER
  
  from lib.common.abstracts import Package
  
  class PDF(Package):
      """PDF analysis package."""
      PATHS = [
          ("ProgramFiles", "Adobe", "Reader 8.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Reader 9.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Reader 10.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Reader 11.0", "Reader", "AcroRd32.exe"),
      ]
  
      REGKEYS = [
          [
              HKEY_LOCAL_MACHINE,
              "SOFTWARE\\Adobe\\Acrobat Reader\\9.0\\AdobeViewer",
              {
                  # Accept EULA for Adobe Reader 9.0.
                  "EULA": 1,
              },
          ],
          [
              HKEY_CURRENT_USER,
              "SOFTWARE\\Adobe\\Acrobat Reader\\9.0\\AdobeViewer",
              {
                  # Accept EULA for Adobe Reader 9.0.
                  "EULA": 1,
              },
          ],
      ]
  
      def start(self, path):
          reader = self.get_path("Adobe Reader")
          return self.execute(reader, args=[path], maximize=True)
  
new_contents: # Copyright (C) 2010-2015 Cuckoo Foundation.
  # This file is part of Cuckoo Sandbox - http://www.cuckoosandbox.org
  # See the file 'docs/LICENSE' for copying permission.
  
  from _winreg import HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER
  
  from lib.common.abstracts import Package
  
  class PDF(Package):
      """PDF analysis package."""
      PATHS = [
          ("ProgramFiles", "Adobe", "Reader 8.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Reader 9.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Reader 10.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Reader 11.0", "Reader", "AcroRd32.exe"),
          ("ProgramFiles", "Adobe", "Acrobat Reader DC", "Reader", "AcroRd32.exe"),
      ]
  
      REGKEYS = [
          [
              HKEY_LOCAL_MACHINE,
              "SOFTWARE\\Adobe\\Acrobat Reader\\9.0\\AdobeViewer",
              {
                  # Accept EULA for Adobe Reader 9.0.
                  "EULA": 1,
              },
          ],
          [
              HKEY_CURRENT_USER,
              "SOFTWARE\\Adobe\\Acrobat Reader\\9.0\\AdobeViewer",
              {
                  # Accept EULA for Adobe Reader 9.0.
                  "EULA": 1,
              },
          ],
      ]
  
      def start(self, path):
          reader = self.get_path("Adobe Reader")
          return self.execute(reader, args=[path], maximize=True)
  
subject: add path for adobe reader dc (thanks to Statixs for reporting)