TryHackMe-Blue
INTRODUCTION
This is an easy box in which we use the Eternal Blue Exploit (MS17–010).

PLEASE NOTE: This box is HIGHLY UNSTABLE and i tried multiple times to run the exploit but no session was created.Even TryHackMe the platform itself mentions this.Moreover when i decided to check other writeups, i was baffled to see how unstable this box is.Therefore if you face similar problems, i would suggest you to skip it and go through walkthrough for some understanding.
This walkthrough was Fabulous and Highly detailed.I would HIGHLY suggest you to go through this one by unicornsec.Not only has he solved it but also provided a detailed explaination of why a particular thing is done and also added other resources which will help you.
In case you want a mannual walkthrough(without metasploit) since u are preparing for OSCP, you can check this out by Ratiros
I hope This post helps you -ZEUS