jpeg画像が与えられる。
> if you need a password anywhere use this "urumdorn4"
というヒントがあるのでパスワードを使って抽出する系のステガノツールを試すと  steghideでファイルが抽出でき、フラグも書いてある。
```$ steghide extract -sf dorna.jpg -p urumdorn4 -xf outwrote extracted data to "out".
$ file *dorna.jpg: JPEG image data, JFIF standard 1.01, resolution (DPI), density 96x96, segment length 16, baseline, precision 8, 720x480, components 3out:       ASCII text
$ cat outHello, wish you success in our event
'dorna lar yovasi' is the nickname of a stadium in Urmia where volleyball lovers gather together.This place has hosted important competitions such as the VNL and the Asian Championship.     
flag : uctf{ZG9ybmFfbGFyX3lvdmFzaQ==}    *base64-encoded
$ echo 'ZG9ybmFfbGFyX3lvdmFzaQ==' | base64 -ddorna_lar_yovasi```