First submission 2015-08-11 07:10:12 UTC ( 1 day, 14 hours ago )
https://www.virustotal.com/en/file/fe519a3ec17858bee9f42c3bb17983832f3efb6438f18097781210d0e12c00ad/analysis/1439414569/

[b]Authenticode signature block and FileVersionInfo properties[/b] CopyrightCopyright 2007-2015, Adobe Systems Inc. Publisher Adobe Systems Incorporated Product Adobe AIR Original name Adobe AIR Installer.exe Internal name Adobe AIR Installer.exe File version 18.0.0.199 Description Adobe AIR Installer Signature verification Signed file, verified signature Signing date 9:14 AM 7/28/2015 Signers [+] Adobe Systems Incorporated [+] Symantec Class 3 Extended Validation Code Signing CA [+] VeriSign Counter signers [+] Symantec Time Stamping Services Signer - G4 [+] Symantec Time Stamping Services CA - G2 [+] Thawte Timestamping CA

conclusion, file is a legit Adobe installer and safe