Mutating spam campaign

A few days ago we saw a Massive spam campaign advertising shares in “Prime Time Group Inc”.

Today we saw the campaign mutate slightly. There were three major mutations:

  • Two of the mutations were to do with characteristics of the MIME message.
  • The third mutation was the file name extension was changed to FDF.

FDF Mail

FDF is an Adobe Form file and is associated with the Adobe Acrobat viewer.