$pdf$4*4*128*

Hello. Could you please help me decrypt tat hash from a pdf? It has been made by Adobe 1.4-1.6 and use 128AES encryption

$pdf$4*4*128*-1028*1*16*9d5d91365b591949a82852719e4dbe03*32*34621090fccd7a3544c21215f942a4bb00000000000000000000000000000000*32*63237146175ce3924cf4aa42b3d456658725b30e1146730140e7469ba9ff2102