CTF Write-Ups

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CTF Write-Ups

Posted by Kevin Pagano

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Here is a collected list of all of the write-ups I've done for CTFs.

2023

Cellebrite

NahamCon

Magnet User Summit

Android (Part 1)

Android (Part 2)

Magnet Virtual Summit

2022

Magnet User Summit

Cellebrite CTF

Heisenberg's Android

Marsha's iPhone

Magnet Virtual Summit

BloomCON 0X06

Belkasoft CTF March

2021

Cellebrite CTF

Heisenberg's Android

Marsha's iPhone

Marsha's iTunes Backup

Magnet Virtual Summit

Belkasoft CTF March

BloomCON 0x05

Networks - Who Am I? (Challenge 1)

Networks - Exfiltration Investigation (Challenge 2)

2020

Magnet Weekly CTF

Android

Week 1 - Hosts File

Week 2 - Chrome Artifacts

Week 3 - Motion Photos

Week 4 - Evernote GUIDs

Linux

Week 5 - Hadoop Logs

Week 6 - Error Codes

Week 7 - IP Interfaces

Week 8 - PHP Cluster

Memory

Grand Prize

Magnet Virtual Summit

2019

Magnet User Summit

2018

Magnet User Summit

Misc

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Archive

October 20233
September 20232
August 20232
July 20231
June 20232
May 20235
April 20232
March 20236
February 20231
January 20232

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Cellebrite CTF 2021 - Heisenberg's Android

Cellebrite is back with another CTF competition and this year's takes it up a notch. I want to start by giving major props to Heather, Paul, Ronen, Sahil and Ian for putting on a great competition . Now lets get started with the walkthroughs. First up, is the Samsung Note 10 owned by "Heisenberg". Evidence : https://d17k3c8pvtyk2s.cloudfront.net/CTF21/CTF21_Heisenberg_SM-N970U1_QualcommLive_2021-07-22.zip Password : 02DB2ECE91DB67E8FA939FC3DC15D16B Device Identification (10 points) What is the Bluetooth MAC Address of the first vehicle Heisenberg's Android connected to? Pulled from the file at the following path: Dump\data\misc\bluedroid\bt_config.conf We get bluetooth connections which we can easily see in the ALEAPP report below that the answer was " 34:C7:31:F8:61:3B ". Figure 1: Bluetooth connections report in ALEAPP Application Analysis (10 Points) Which website did Heisenburg look for guidance on how to mount a USB drive on his phone? (The answer sh

StartMe Up (Forensic Edition)

As part of my own benefit I created a Start.Me page for a bunch of FOSS forensic tools and utilities that I currently have in my toolkit. I've also included RSS feeds for blogs I follow as well as YouTube channels and some other links to sites I frequent. You can access it at startme.stark4n6.com or preview it below (embedding on Blogger isn't the best). If anyone has suggestions on more items to add or links please feel free to reach out to me on Twitter @KevinPagano3 . *Cues The Rolling Stones*

Introducing SQLiteWalker

In my continued research of mobile devices, I always wanted to find a way to quickly hunt for files to research. Because mobile devices (both Android and iOS) rely heavily on SQLite databases I figured why not make a script to pull these databases out from the filesystem for further analysis. The premise behind my script was to spurred on by Eric Zimmerman's SQLECmd which has a -hunt switch that allows for finding database files from a folder structure. Using the -verbose option spit out a large log of what was found but it wasn't formatted exactly how I wanted it and it ran slower than I anticipated. And so in a galaxy far far away, SQLiteWalker was born! Download link: https://github.com/stark4n6/SQLiteWalker Simply put, it looks for magic header details for SQLite databases and extracts the files. Currently, SQLiteWalker can handle folder or .zip input formats. The only other required field is an output path for the exported files and reports. The only optional switch i

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