$ ctf42

#android CTF challenges

21 CTF challenges using android from 12 CTFs (2020–2026), 21 with writeups. Mostly Reverse (43%) and Misc (38%).

Reverse · 9 Misc · 8 Mobile · 4

Often combined with

#apk-reversing 5 #jadx 4 #jni 2 #native-library 2 #cordova 1 #hardcoded-pin 1 #apk-decompilation 1 #seeded-prng 1 #cve-2017-13288 1 #parcelable-mismatch 1 #xor 1 #base64 1 #ssl-pinning-bypass 1 #frida 1 #parameter-tampering 1

Challenges

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Challenge CTF Weight Category Has
CTF_Coin RaziCTF 2020 21.91 Misc files wu 3
chasing_a_lock RaziCTF 2020 21.91 Misc files wu 3
Friends RaziCTF 2020 21.91 Misc files wu 3
Mobile_One HacktivityCon 2020 21.86 Misc files wu 3
ezpz darkCON 2021 24.06 Reverse files wu 2
Crack_Me SekaiCTF 2024 36.96 Reverse files wu 2
Meeting RaziCTF 2020 21.91 Misc files wu 1
broadcast_test De1CTF 2020 24.28 Misc files wu 1
Hijacker SekaiCTF 2024 36.96 Misc files wu 1
fire_in_the_androiddd darkCON 2021 24.06 Reverse files wu 1
watercolor S4CTF 2021 24.52 Reverse files wu 1
JNIdorino UMDCTF 2023 – Mobile files wu 1
Memedrive RITSEC 2021 – Reverse files wu 1
SekaiID SekaiCTF 2026 79.25 Misc files wu 1
Cold_Storage 1337UP 2024 – Mobile files wu 1
whos_that_pokemon UMDCTF 2023 – Mobile files wu 1
threelittlekeys CyberSecurityRumble 2022 62.00 Reverse files wu 1
Lightbulb CyberSecurityRumble 2023 Quals 24.80 Reverse files wu 1
Free_Delivery UMassCTF 2024 43.10 Reverse files wu 1
pokeball_escape UMDCTF 2023 – Mobile files wu 1
3T-PHON3-HOM3 HackPack 2022 35.11 Reverse files wu 1