He is the brother of footballers Khaled Abdulrahman and Omar Abdulrahman who both play currently for Al Ain.
The second half was more of the same, with UAE playmaker Omar Abdulrahman unable to find the touches to get his team going.
As the first period continued in frenetic fashion, Omar Abdulrahman then danced past two defenders before playing in Mabkhout who tricked his way past Jaffer only to see the ball cleared off the line.
A Bahraini backpass before the hour mark was punished with a free kick a yard inside the penalty area, and from the dead-ball Omar Abdulrahman clipped the top of the crossbar with a sweetly struck shot.
Omar Abdulrahman was finally having more of an impact on the contest at the start of the second half and the UAE remained in the hunt for way back into the contest as Khalil flashed an effort just wide six minutes after the restart with Ryan at full stretch.
The Emirati custodian almost inadvertently gave Qatar a way back in with five minutes remaining as he turned Hassan s near post shot onto his own upright but Mabkhout then put the game beyond doubt at the 90th minute as he combined with Omar Abdulrahman to rifle home from six yards.
Shortly after the kickoff, Bahrain defender Abdullah Omar lost the ball to Omar Abdulrahman in the right-back position and the playmaker's immediate lofted pass found Mabkhout running through on goal to slip the ball under goalkeeper Sayyid Muhammad Ja'far for an extraordinary start to the contest.
With both coaches retaining the majority of their first team and only making minor changes to their starting line-ups following their semi-final defeats earlier in the week, it was the UAE's exciting front three which helped Mahdi Ali's side open the scoring as Mabkhout freed Omar Abdulrahman following a swift counterattack and Khalil was on hand to produce a first-time finish inside the penalty area from the perfectly weighted through ball . Iraq, though, were almost back on level terms just four minutes later as Younis Mahmoud's follow-up was acrobatically tipped over the crossbar by substitute UAE goalkeeper Khalid Eisa after Majed Hassan's attempted sliding clearance on the edge of the penalty area had bounced back off the woodwork following a deflection off the veteran striker.