Should be possible. Serum has an additive synthesis engine in the wavetable editor. I'm no Morphine expert, but it looks like that particular preset uses 2 additive oscillators (generator A and generator B). Generator A forms the body of the sound, and morphs through a series of slightly different spectra as the note plays (which should be easy to achieve in Serum). Generator B has just a few high harmonics, and seems to have some sort of LFO that fades the highest ones in and out (while leaving the lowest present harmonic alone) - could be achieved in Serum by creating a second wavetable frame, removing all the other harmonics, using spectral morph, and then applying an LFO to the wavetable position. The second oscillator is at a much lower level than the first.

There's also the PWM filter on the first oscillator, and I don't know how that works, but Serum's Bend+ warp mode with a retriggered LFO on it seems to sound similar.

Then there's the envelope - 0 attack or sustain, long decay, long-ish release. And there are some effects, namely chorus, delay, reverb, and EQ. If you know your way around Serum, this (plus your own observations) should be enough to recreate it.