Cybertalents 2017: Add writeup for 'Crack the hash'

_events/2017/2017-04-06-cybertalents.md

@@ -18,3 +18,4 @@ quite a few "question answering"-challenges*
 | Reversing | getting started | 50 | [writeup](/reversing/cybertalents2017-getting-started.md) |
 | Forensics | Lost Files | 100 | [write-up](/forensics/cybertalents2017-lost-files.md) |
 | Crypto | Guess the Password | 50 | [writeup](/crypto/cybertalents2018-guess-the-pw.md) |
+| Crypto | Crack the hash | 25 | [writeup](/crypto/cybertalents2018-crack-the-hash.md) |

crypto/cybertalents2017-crack-the-hash.md

+# [Cybertalents 2017](https://cybertalents.com) - Crack the hash (25 pts)
+
+> A hacker leaked the below hash online.
+> Can you crack it to know the password of the CEO?
+> 1ab566b9fa5c0297295743e7c2a6ec27
+
+duckduckgo for the hash, first result is:
+https://md5.gromweb.com/?string=Iamtheflag
+
+flag = `Iamtheflag`
+
+> Solved & write-up written by Fabian Würfl

write-ups.md

@@ -27,6 +27,7 @@ We organize our WriteUps by category - not by ctf.
 | Hash on Hash | [easyctf 2017](/_events/2017/2017-03-13-easyctf.md) | [link](/crypto/easyctf2017-hash-on-hash.md) | bash, md5, crackstation.net |
 | Genius | [easyctf 2017](/_events/2017/2017-03-13-easyctf.md) | [link](/crypto/easyctf2017-genius.md) | python, bash, md5, crackstation |
 | Guess the Password | [Cybertalents 2017](/_events/2017/2017-04-06-cybertalents.md) | [writeup](/crypto/cybertalents2018-guess-the-pw.md) | easy, hash, luck, duckduckgo |
+| Crack the hash | [Cybertalents 2017](/_events/2017/2017-04-06-cybertalents.md) | [writeup](/crypto/cybertalents2018-crack-the-hash.md) | easy, hash, gromweb.com |
 
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