The second BelkaCTF: Drug Dealer Case is over! Thanks to every participant, and congratulations to this month's winners:
Professional track: Weihan Goh, Beomjun Park, Eric Kwan
Student track: Jaeheon Kim, Mohammad Al falaileh, Mohammed Hassan

📄 The official CTF write-up

📺 Official solution video

Added at 14:45 EDT: a screwup in the phone image detected. This one is incorrect password, shouldn’t be there. The challenges are still solvable just fine, just avoid this rabbit hole.


Understood, don't show again

The sun has long since set, we were both tired. I look at my phone and see that it’s already pushing midnight. My wife has called at least a dozen times, The Chief looks at me with yet another curious look on his face.

Chief: “What do you think sonny… if we could track the supplier’s phone… that would mean we could potentially find the big boss, huh?”

You: “You’ve been tracking that guy for what….. over three years now?” – The Chief clears his throat and raises his eyebrows and cracks his first smile of the day.

Chief: “You mean… we both have been tracking him for over three years.”

“OK, OK.” – I laughed – “I have an idea…If only we could get this guys IMEI.”

Warmup
691
IMEI
Solved 11 times

What is the supplier’s phone IMEI identifier?

Help yourself to the NSA metadata storage: cellrecordslookup.nsa.fyi/

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