In the Muratorian fragment the book is described as containing the acts of all the apostles, presumably in order to reject apocryphal books of acts by implication. (religion-online.org)
The name Didymus Judas Thomas may point towards Syria, where the Acts of Thomas originated, but the parallels with traditions and apocryphal books known to Clement and Origen suggest Alexandria instead. (religion-online.org)
(Jude has also been suspect since the earliest days because it appears to quote apocryphal books — the Assumption of Moses and Enoch — as Scripture (9, 54,15).) (religion-online.org)