Are the aid payments for the families of the martyrs of the Intifada a legitimate inheritance, or blood money to be distributed to the heirs, or for whomever benefits from them?

The grants given to the families of martyrs are considered a gift from the granting authority, not an inheritance from the martyr, because a deceased person does not own. They are distributed among the beneficiaries according to what the granting authority specifies, as the grantor is the reference for the division of the gift.