TESS Wildlife Sanctuary staff expect to know within a week whether their newest dingo was kidnapped from Fraser Island.
As an investigation into the circumstances surround the pup's appearance on the mainland continues, the mapping of its genes is almost complete.
The dingo's purity will be the key factor in determining whether it belonged to a Fraser Island pack.
Results of costly DNA tests conducted by both the sanctuary and Biosecurity Queensland will determine the pup's future.
The dingo has almost made a full recovery from its ordeal in Maryborough bushland.
It was captured less than a month ago in an emaciated and malnourished state.
If the dingo is found to have been taken from Fraser Island, anybody charged with the offence could face fines of up to $300,000 or two years' imprisonment.
TESS Wildlife Sanctuary curator Ray Revill believes the young male was from Fraser Island based on its markings and mannerisms.
He has entered an application with Biosecurity Queensland to increase the sanctuary's permit to allow the pup to stay.
A decision on this application is pending.
Mr Revill thanked the Fraser Coast public and other organisations such as Pet Warriors for their support.
Update your news preferences and get the latest news delivered to your inbox.