While SHASHI PUTHA 3 certainly existed as a Sri Lankan fishing vessel (at least between 2011 and 2015, per FAO), as a 17gt 10.8m vessel she is not likely to be fishing off Newfoundland.
Also note that the MMSI ("146") has been incorrectly programmed (and maybe the call-sign, though "4S" is an allocated prefix for Sri Lanka).
Perhaps a phantom - or something up to no good.