PicoCTF icon

two.apk

PicoCTF

1.71 MB

Analyzed: 2026-05-07 10:58 UTC

APK Security & Privacy Score

Security scoring uses multi-engine scan signals and APK indicators. Privacy scoring uses requested permissions and network endpoint patterns.

Security Scan-weighted
95/100
Threat scan clean Debuggable build
Privacy Permissions & network
98/100
AllowBackup enabled Low data access
96/100
Excellent
Overall trust

Facts

Threat scan 0/75 flagged, 0 suspicious
Permissions 0 requested
Network strings No URL strings detected
Target SDK 29
Certificate Valid until 2049-08-04 (23 years, suspicious)

Warnings

AllowBackup is enabled.
Package Name com.hellocmu.picoctf
Version Code 1
Version Name 1.0
Debuggable Yes
Allow Backup Yes
Min SDK Android 15 (Ice Cream Sandwich)
Target SDK Android 29 (Android 10)
Supported ABIs
arm64-v8a armeabi-v7a x86 x86_64

Certificate & Signer

Valid From 2019-08-12 18:17:20
Valid To 2049-08-04 18:17:20
Serial Number 1
Thumbprint 97ad96d155ad9c3b943b8bc747aa34a1f07d27e2
Issuer: C US
Issuer: CN Android Debug
Issuer: DN C:US, CN:Android Debug, O:Android
Issuer: O Android
Subject: C US
Subject: CN Android Debug
Subject: DN C:US, CN:Android Debug, O:Android
Subject: O Android

Security Scan

0 /75
✓ Clean
Scanned by 75 security vendors
Last scan: 2023-09-18 03:39 UTC
Malicious
0
Suspicious
0
Harmless
0
Undetected
65
Timeout
0
Failure
0

Scan Providers

75 vendors
ALYac undetected
No result reported
Engine 1.1.3.1
APEX type-unsupported
No result reported
Engine 6.455
AVG undetected
No result reported
Engine 23.8.8378.0
Acronis undetected
No result reported
Engine 1.2.0.121
AhnLab-V3 undetected
No result reported
Engine 3.24.0.10447
Alibaba undetected
No result reported
Engine 0.3.0.5
Antiy-AVL undetected
No result reported
Engine 3.0
Arcabit undetected
No result reported
Engine 2022.0.0.18
Avast undetected
No result reported
Engine 23.8.8378.0
Avast-Mobile undetected
No result reported
Engine 230917-00
Avira undetected
No result reported
Engine 8.3.3.16
Baidu undetected
No result reported
Engine 1.0.0.2
BitDefender undetected
No result reported
Engine 7.2
BitDefenderFalx undetected
No result reported
Engine 2.0.936
BitDefenderTheta undetected
No result reported
Engine 7.2.37796.0
Bkav undetected
No result reported
Engine 2.0.0.1
CAT-QuickHeal undetected
No result reported
Engine 22.00
CMC undetected
No result reported
Engine 2.4.2022.1
ClamAV undetected
No result reported
Engine 1.2.0.0
CrowdStrike type-unsupported
No result reported
Engine 1.0
Cybereason type-unsupported
No result reported
Engine 1.2.449
Cylance type-unsupported
No result reported
Engine 2.0.0.0
Cynet undetected
No result reported
Engine 4.0.0.27
Cyren undetected
No result reported
Engine 6.5.1.2
DeepInstinct type-unsupported
No result reported
Engine 3.1.0.15
DrWeb undetected
No result reported
Engine 7.0.61.8090
ESET-NOD32 undetected
No result reported
Engine 27924
Elastic undetected
No result reported
Engine 4.0.106
Emsisoft undetected
No result reported
Engine 2022.6.0.32461
F-Secure undetected
No result reported
Engine 18.10.1137.128
FireEye undetected
No result reported
Engine 35.24.1.0
Fortinet undetected
No result reported
Engine None
GData undetected
No result reported
Engine A:25.36515B:27.33179
Google undetected
No result reported
Engine 1695002451
Gridinsoft undetected
No result reported
Engine 1.0.139.174
Ikarus undetected
No result reported
Engine 6.2.4.0
Jiangmin undetected
No result reported
Engine 16.0.100
K7AntiVirus undetected
No result reported
Engine 12.114.49623
K7GW undetected
No result reported
Engine 12.114.49623
Kaspersky undetected
No result reported
Engine 22.0.1.28
Lionic undetected
No result reported
Engine 7.5
MAX undetected
No result reported
Engine 2023.1.4.1
Malwarebytes undetected
No result reported
Engine 4.5.5.54
MaxSecure undetected
No result reported
Engine 1.0.0.1
McAfee undetected
No result reported
Engine 6.0.6.653
McAfee-GW-Edition undetected
No result reported
Engine v2021.2.0+4045
MicroWorld-eScan undetected
No result reported
Engine 14.0.409.0
Microsoft undetected
No result reported
Engine 1.1.23080.2005
NANO-Antivirus undetected
No result reported
Engine 1.0.146.25796
Paloalto type-unsupported
No result reported
Engine 0.9.0.1003
Panda undetected
No result reported
Engine 4.6.4.2
Rising undetected
No result reported
Engine 25.0.0.27
SUPERAntiSpyware undetected
No result reported
Engine 5.6.0.1032
Sangfor undetected
No result reported
Engine 2.23.0.0
SentinelOne type-unsupported
No result reported
Engine 23.3.0.3
Sophos undetected
No result reported
Engine 2.3.1.0
Symantec undetected
No result reported
Engine 1.20.0.0
SymantecMobileInsight undetected
No result reported
Engine 2.0
TACHYON undetected
No result reported
Engine 2023-09-18.01
Tencent undetected
No result reported
Engine 1.0.0.1
Trapmine type-unsupported
No result reported
Engine 4.0.14.91
TrendMicro undetected
No result reported
Engine 11.0.0.1006
TrendMicro-HouseCall undetected
No result reported
Engine 10.0.0.1040
Trustlook undetected
No result reported
Engine 1.0
VBA32 undetected
No result reported
Engine 5.0.0
VIPRE undetected
No result reported
Engine 6.0.0.35
ViRobot undetected
No result reported
Engine 2014.3.20.0
VirIT undetected
No result reported
Engine 9.5.537
Webroot type-unsupported
No result reported
Engine 1.0.0.403
Xcitium undetected
No result reported
Engine 36015
Yandex undetected
No result reported
Engine 5.5.2.24
Zillya undetected
No result reported
Engine 2.0.0.4955
ZoneAlarm undetected
No result reported
Engine 1.0
Zoner undetected
No result reported
Engine 2.2.2.0
tehtris type-unsupported
No result reported

File Signatures

SHA-256 f2d474ead9f4657508048d4798be9ea22f1536ecb1bcb59e444d34864a6dbb6f
MD5 1139173943252ff61ac8e544bbff3544
SHA-1 f2724098b10f5580773c93cf7787d22359e30323
SSDEEP 24576:/nhgvycjV86U/pf6A3GfMLbZlk0FGEdmf7ap1lMLcRm/dDUamvmcfmXo:/hgvywa6U/N6dMLbZBFmjaH8/d4XvzfX
TLSH T1EF85F181F3C8AC2FCDB784324BB60B6B51564C5ACA46D75349B4B12C9DBB9D09E81FC8
VHASH 2028aa78b33b576ccd1f1a7aba4c571e

File Intelligence

Type Description Android Human-friendly file type name based on multiple detection methods.
Type Extension apk Most likely file extension inferred from the content.
Type Tag android Primary type tag assigned by the classifier.
Type Tags executable, mobile, android, apk Additional type tags that describe the file content.
Magic Zip archive data, at least v1.0 to extract, compression method=store File signature result from magic bytes inspection.
TrID Android Package (52.8%), Java Archive (21.9%), Sweet Home 3D design (generic) (17%), ZIP compressed archive (6.5%), PrintFox/Pagefox bitmap (640x800) (1.6%) TrID file type guesses with probabilities.
extensions png (260), xml (163), so (4), dex (1), MF (1), RSA (1), SF (1) File extensions found inside the APK and how many of each.
file types PNG (260), XML (163), unknown (30), ELF (4), DEX (1) Detected embedded file types and their counts.
highest datetime 1980-00-00 00:00:00 Latest timestamp found among files inside the archive.
lowest datetime 1980-00-00 00:00:00 Earliest timestamp found among files inside the archive.
num children 458 Number of files contained within the archive.
type APK Container type detected for the analyzed file.
uncompressed size 2.8 MB Estimated total size of all files after extraction.

Deep Manifest Analysis

Activity Intents (1)

com.hellocmu.picoctf.MainActivity
Actions
Main Activity Action: Start as a main entry point, does not expect to android.intent.action.MAIN
Categories
android.intent.category.LAUNCHER

Native Libraries (1)

libhellojni libhellojni.so

Activities (1)

com.hellocmu.picoctf.MainActivity

Submission Details

Submitted At 2026-05-07
First Submission 2026-05-07
Last Submission 2026-05-07
Stored Until 2026-06-06