Audio and Video not playing in sync

After importing my mp4 video into Premiere Pro, the audio plays perfectly, but the video is out of sync and plays as if though it's in slow motion.
I've been using this software for about 4 months and have encountered this problem within the last few weeks.

Thanks for your prompt response, John.
Here are the details:
Video was recorded on Canon Vixia HF R400 HD 53x Camcorder using the automatic setting (no customized settings whatsoever).
I inserted SD card into computer (PC, using Windows 8 operating system), right click to import media file to Premiere Pro CC.
When I attempted to play the video in the Source window, I notice that audio played perfectly, but video was playing EXTREMELY slow. In fact, at times the video was at a standstill and wasn't moving at all.
Here are the result from the MediaArea.Net analysis.
General
Complete name                            : E:\DCIM\136_0317\MVI_0084.MP4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42
File size                                : 2.27 GiB
Duration                                 : 9mn 15s
Overall bit rate                         : 35.1 Mbps
Encoded date                             : UTC 2014-03-17 18:44:17
Tagged date                              : UTC 2014-03-17 18:44:17
Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 9mn 15s
Bit rate                                 : 34.9 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 59.940 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.281
Stream size                              : 2.25 GiB (99%)
Language                                 : English
Encoded date                             : UTC 2014-03-17 18:44:17
Tagged date                              : UTC 2014-03-17 18:44:17
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 9mn 15s
Bit rate mode                            : Constant
Bit rate                                 : 256 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 16.9 MiB (1%)
Language                                 : English
Encoded date                             : UTC 2014-03-17 18:44:17
Tagged date                              : UTC 2014-03-17 18:44:17
Hopefully, this is enough information for you to offer so solution to my problem. Thanks and I appreciate you.

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