# MR-ROBOT

## <mark style="color:red;">Downloading Challenge Files</mark>

here is the executable file to download

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in this challenge we have an audio file and a zip file that is protected by a password so we have to find the password from the audio and then unzip the zip file to get the flag

first let's listen to the audio to see whether it's a morse code or DTMF tones that can be decoded, and after listening to it we can know the it's DTMF tones&#x20;

DTMF tones are *the sounds or tones generated by a telephone when the numbers are pressed and each number have a diffrent sound so we can capture the numbers pressed using an online DTMF Tones Decoder*

* <https://unframework.github.io/dtmf-detect/>

<div align="left"><figure><img src="https://1410593648-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYI2noEqPw69jd0hR7Prp%2Fuploads%2FhCnXpCh0zYgKe9KonO22%2Fimage.png?alt=media&#x26;token=0cdefed9-4d3c-4586-9479-b02d4bb18dda" alt=""><figcaption></figcaption></figure></div>

<div align="left"><figure><img src="https://1410593648-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYI2noEqPw69jd0hR7Prp%2Fuploads%2FhF4D7kBe1aq0Y8sP3uQ9%2Fimage.png?alt=media&#x26;token=8ae3b3e1-9478-4d62-a6e3-c14fe1cb26dc" alt=""><figcaption></figcaption></figure></div>

the password is => **148641251456**

<div align="left"><figure><img src="https://1410593648-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYI2noEqPw69jd0hR7Prp%2Fuploads%2FK2TK6QcYWSGWIXRpfKfI%2Fimage.png?alt=media&#x26;token=3b87364c-3da7-43f8-8ec0-20d5d9a926aa" alt=""><figcaption></figcaption></figure></div>

now let's use this passoword to unzip the zip file

<div align="left"><figure><img src="https://1410593648-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYI2noEqPw69jd0hR7Prp%2Fuploads%2FcQD4tT4NehD0IoUrvXb7%2Fimage.png?alt=media&#x26;token=f65d0c6b-ae21-469a-9ddb-a4b9d97b850a" alt=""><figcaption></figcaption></figure></div>

now let's open this pdf file, this file looks like doesn't contain anything useful&#x20;

but when u start selecting text you will notice the flag is written with a white font and this is why it's hidden

<div align="left"><figure><img src="https://1410593648-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYI2noEqPw69jd0hR7Prp%2Fuploads%2FzXs9ArFLwr5YuiFGBaTA%2Fimage.png?alt=media&#x26;token=749f0418-0b0b-4192-b154-f51253a9fa93" alt=""><figcaption></figcaption></figure></div>

<div align="left"><figure><img src="https://1410593648-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYI2noEqPw69jd0hR7Prp%2Fuploads%2FD4qizSH5Ga7kMgrjU5kX%2Fimage.png?alt=media&#x26;token=7912bfc5-0eec-47b9-93b6-0afed8a23161" alt=""><figcaption></figcaption></figure></div>

## <mark style="color:red;">Flag</mark>

**DEFENSYS{PDF5\_C4n\_H1d3\_7hin85}**

Greetings from[ <mark style="color:blue;">**Sayonara**</mark>](https://github.com/ismail-arame/)