Eupolemus
It has been speculated that the author might be the Eupolemus who was ambassador of Judas Maccabeus to Rome as found in 1 Maccabees 8 . 17f and 2 Maccabees 4 . 11 . 
<triplet> 1 Maccabees <subj> Judas Maccabeus <obj> characters <subj> 2 Maccabees <obj> followed by