I've been asked this question several times and have addressed it, but I've seen claims floating around that Iran used a Petah-1 warhead mounted on a Khyber Shakhan booster, just based on the fact that the boosters shown in the footage are not painted.
This claim is not true. The Petah-1 and Kiber here share the same booster design, or at the very least, one that is very similar. Unpainted boosters, then, are not evidence of a different missile configuration.