Flexcil1.3.1.20.apk

72.86 MB

Analyzed: 2026-02-28 02:31 UTC

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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
92/100
Threat scan flagged Modern target SDK
Privacy Permissions & network
72/100
81/100
Good
Overall trust

Facts

Threat scan 1/76 flagged, 0 suspicious
Permissions 24 requested
Network strings 2 URLs (0 HTTP, 2 HTTPS)
Target SDK 34
Certificate Valid until 2221-04-20 (195 years, suspicious)

Warnings

Threat scan flagged: 1/76 scanners marked this file as malicious.
Package Name com.flexcil.flexcilnote
Version Code 533
Version Name 1.3.1.20
Application Name com.stub.StubApp
Debuggable No
Allow Backup No
Min SDK Android 26 (Oreo)
Target SDK Android 34 (Android 14)
Supported ABIs
arm64-v8a

Certificate & Signer

Valid From 2021-06-07 04:13:13
Valid To 2221-04-20 04:13:13
Serial Number 4efffb5a
Thumbprint 5aec88b74ec299b5e6414f3832602e5fe81f3565
Issuer: C CN
Issuer: DN C:CN
Subject: C CN
Subject: DN C:CN

Security Scan

1 /76
⚠️ Threats Detected
Detected by 1 vendor: ESET-NOD32 (Android/Packed.Jiagu.D potentially unsafe application)
Scanned by 76 security vendors
Last scan: 2026-02-28 02:30 UTC
Malicious
1
Suspicious
0
Harmless
0
Undetected
59
Timeout
7
Failure
0

Scan Providers

76 vendors
ALYac undetected
No result reported
Engine 2.0.0.10
APEX type-unsupported
No result reported
Engine 6.752
AVG timeout
No result reported
Engine 23.9.8494.0
Acronis undetected
No result reported
Engine 1.2.0.121
AhnLab-V3 undetected
No result reported
Engine 3.29.1.10604
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 2025.0.0.23
Avast timeout
No result reported
Engine 23.9.8494.0
Avast-Mobile undetected
No result reported
Engine 260227-04
Avira undetected
No result reported
Engine 8.3.3.24
Baidu undetected
No result reported
Engine 1.0.0.2
BitDefender timeout
No result reported
Engine 7.2
BitDefenderFalx undetected
No result reported
Engine 2.0.936
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
CTX undetected
No result reported
Engine 2024.8.29.1
ClamAV undetected
No result reported
Engine 1.5.1.0
CrowdStrike undetected
No result reported
Engine 1.0
Cylance type-unsupported
No result reported
Engine 3.0.0.0
Cynet type-unsupported
No result reported
Engine 4.0.3.4
DeepInstinct type-unsupported
No result reported
Engine 5.0.0.8
DrWeb undetected
No result reported
Engine 7.0.75.2070
ESET-NOD32 malicious
Android/Packed.Jiagu.D potentially unsafe application
Engine 18.2.18.0
Elastic undetected
No result reported
Engine 4.0.251
Emsisoft undetected
No result reported
Engine 2024.8.0.61147
F-Secure undetected
No result reported
Engine 18.10.1547.307
Fortinet undetected
No result reported
Engine 7.0.30.0
GData undetected
No result reported
Engine GD:27.43680AVA:64.30742
Google undetected
No result reported
Engine 1772236869
Gridinsoft undetected
No result reported
Engine 1.0.239.174
Ikarus undetected
No result reported
Engine 6.4.16.0
Jiangmin undetected
No result reported
Engine 16.0.100
K7AntiVirus undetected
No result reported
Engine 14.38.58731
K7GW undetected
No result reported
Engine 14.38.58732
Kaspersky timeout
No result reported
Engine 22.0.1.28
Kingsoft undetected
No result reported
Engine None
Lionic undetected
No result reported
Engine 8.16
Malwarebytes undetected
No result reported
Engine 3.1.0.211
MaxSecure undetected
No result reported
Engine 1.0.0.1
McAfeeD undetected
No result reported
Engine 1.2.0.14023
MicroWorld-eScan undetected
No result reported
Engine 14.0.409.0
Microsoft undetected
No result reported
Engine 1.1.26010.1
NANO-Antivirus undetected
No result reported
Engine 1.0.170.26895
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 25.0.0.28
SUPERAntiSpyware undetected
No result reported
Engine 5.6.0.1032
Sangfor timeout
No result reported
Engine 2.22.3.0
SentinelOne type-unsupported
No result reported
Engine 7.5.3.1
Skyhigh timeout
No result reported
Sophos undetected
No result reported
Engine 3.3.1.0
Symantec undetected
No result reported
Engine 1.22.0.0
SymantecMobileInsight undetected
No result reported
Engine 2.0
TACHYON undetected
No result reported
Engine 2026-02-27.02
Tencent undetected
No result reported
Engine 1.0.0.1
Trapmine type-unsupported
No result reported
Engine 4.0.10.0
TrellixENS timeout
No result reported
Engine 6.0.6.653
TrendMicro undetected
No result reported
Engine 24.550.0.1002
TrendMicro-HouseCall undetected
No result reported
Engine 24.550.0.1002
Trustlook undetected
No result reported
Engine 1.0
VBA32 undetected
No result reported
Engine 5.5.1
VIPRE undetected
No result reported
Engine 6.0.0.35
Varist undetected
No result reported
Engine 6.6.1.3
ViRobot undetected
No result reported
Engine 2014.3.20.0
VirIT undetected
No result reported
Engine 9.5.1155
Webroot undetected
No result reported
Engine 1.9.0.8
Xcitium undetected
No result reported
Engine 38449
Yandex undetected
No result reported
Engine 5.5.2.24
Zillya undetected
No result reported
Engine 2.0.0.5554
ZoneAlarm undetected
No result reported
Engine 6.23-113518533
Zoner undetected
No result reported
Engine 2.2.2.0
alibabacloud type-unsupported
No result reported
Engine 2.2.0
huorong undetected
No result reported
Engine 10e1e75:10e1e75:71ab9b9:71ab9b9
tehtris type-unsupported
No result reported

File Signatures

SHA-256 47d1b87f4beb0a2d41463dff00ebc66d6e60da563e79caf711e3b2aeb58f53a9
MD5 28f56816ec4bcd21888dae7d9c2ab166
SHA-1 656d8c2dce6ae932388d02cbcc857ead9e0f8ea9
SSDEEP 786432:FMr8HkiqXLGHNRLylBf4XHFsLsRnzMGXUL2LQ137vzQM/rWCuuO53kETbrylzgf5:FMoHkiCStg8VsVCUT1jzrJSknlzgfwrK
TLSH T18BF7F11B9E8D8522FBA9F13E9D06C646E4D12D08C542D3EF341D750BABB62814F6F2B4
VHASH ad9a83934181d0a3f795d16f5b58e9ea
PERMHASH c2422c88d2450a9759c7e53386fa463c49b0ea8d0fc7b6e3b2208b33865ed145

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 v2.0 to extract, compression method=deflate File signature result from magic bytes inspection.
Magika APK File type predicted by Magika (ML-based file type detection).
TrID Android Package (49%), Java Archive (24.5%), Sweet Home 3D Design (generic) (19%), ZIP compressed archive (7.2%) TrID file type guesses with probabilities.
dhash 0000001e1e170600 Perceptual hash used to compare visual similarity of files.
raw md5 14688143a2f9ed2bf0ff1f255be78b3b Raw MD5 hash of the file contents.
extensions xml (535), pdf (204), version (80), jpg (74), png (36), properties (34), so (12), kotlin_builtins (7), json (3), proto (3), b0 (1), bin (1), dex (1), gz (1), m (1), MF (1), prof (1), profm (1), RSA (1), SF (1) File extensions found inside the APK and how many of each.
file types XML (535), PDF (204), unknown (137), JPG (74), PNG (36), ELF (12), DEX (1), Java Bytecode (1) Detected embedded file types and their counts.
highest datetime 2025-03-12 00:30:24 UTC Latest timestamp found among files inside the archive.
lowest datetime 1981-01-01 01:01:02 UTC Earliest timestamp found among files inside the archive.
num children 3169 Number of files contained within the archive.
type APK Container type detected for the analyzed file.
uncompressed size 25 MB Estimated total size of all files after extraction.

Deep Manifest Analysis

Activity Intents (5)

com.flexcil.flexcilnote.MainActivity
Actions
Main Activity Action: Start as a main entry point, does not expect to android.intent.action.MAIN
Send Activity Action: Deliver some data to someone else. android.intent.action.SEND
View Activity Action: Display the data to the user. android.intent.action.VIEW
Categories
android.intent.category.LAUNCHER android.intent.category.DEFAULT android.intent.category.BROWSABLE
com.flexcil.flexcilnote.activities.AirBridgeProcessingActivity
Actions
View Activity Action: Display the data to the user. android.intent.action.VIEW
Categories
android.intent.category.DEFAULT android.intent.category.BROWSABLE
com.flexcil.flexcilnote.activities.SaveToDownloadFolderActivity
Actions
Send Activity Action: Deliver some data to someone else. android.intent.action.SEND
Categories
android.intent.category.DEFAULT
com.flexcil.flexcilnote.activities.WritingViewActivity
Actions
com.samsung.android.support.REMOTE_ACTION com.samsung.android.support.REMOTE_ACTION
net.openid.appauth.RedirectUriReceiverActivity
Actions
View Activity Action: Display the data to the user. android.intent.action.VIEW
Categories
android.intent.category.DEFAULT android.intent.category.BROWSABLE

Service Intents (2)

com.flexcil.flexcilnote.cloudSync.fcm.FCMServiceCloudSync
Actions
Firebase messaging event Action used by Firebase to deliver a push message to the app. com.google.firebase.MESSAGING_EVENT
Firebase messaging service Handles push notifications and data messages from Firebase Cloud Messaging. com.google.firebase.messaging.FirebaseMessagingService
Actions
Firebase messaging event Action used by Firebase to deliver a push message to the app. com.google.firebase.MESSAGING_EVENT

Receiver Intents (2)

Profile installer Installs performance profiles to speed up app startup and hot paths. androidx.profileinstaller.ProfileInstallReceiver
Actions
Install performance profile Installs a profile that helps optimize app performance. androidx.profileinstaller.action.INSTALL_PROFILE
Skip profile install Skips profile installation for this build. androidx.profileinstaller.action.SKIP_FILE
Save performance profile Saves a profile generated during app usage. androidx.profileinstaller.action.SAVE_PROFILE
Benchmark operation Runs a profile installer benchmark operation. androidx.profileinstaller.action.BENCHMARK_OPERATION
com.google.firebase.iid.FirebaseInstanceIdReceiver
Actions
com.google.android.c2dm.intent.RECEIVE com.google.android.c2dm.intent.RECEIVE

Native Libraries (10)

libabsl.cr libabsl.cr.so
libairbridgelib libairbridgelib.so
C++ Standard Library Android NDK C++ runtime used by native code. libc++_chrome.cr.so
C++ Standard Library Android NDK C++ runtime used by native code. libc++_shared.so
libchrome_zlib.cr libchrome_zlib.cr.so
libgraphics-core libgraphics-core.so
libicuuc.cr libicuuc.cr.so
libnative-lib libnative-lib.so
libpartition_alloc.cr libpartition_alloc.cr.so
libpdfium.cr libpdfium.cr.so

Requested Permissions (24)

read the contents of your shared storage Allows the app to read the contents of your shared storage. android.permission.READ_EXTERNAL_STORAGE
android.permission.READ_MEDIA_IMAGES Custom app or vendor permission (not publicly documented). android.permission.READ_MEDIA_IMAGES
android.permission.READ_MEDIA_AUDIO Custom app or vendor permission (not publicly documented). android.permission.READ_MEDIA_AUDIO
android.permission.READ_MEDIA_VIDEO Custom app or vendor permission (not publicly documented). android.permission.READ_MEDIA_VIDEO
take pictures and videos This app can take pictures and record videos using the camera while the app is in use. android.permission.CAMERA
modify or delete the contents of your shared storage Allows the app to write the contents of your shared storage. android.permission.WRITE_EXTERNAL_STORAGE
Foreground service Allows the app to run a foreground service. android.permission.FOREGROUND_SERVICE
android.permission.FOREGROUND_SERVICE_MICROPHONE Custom app or vendor permission (not publicly documented). android.permission.FOREGROUND_SERVICE_MICROPHONE
record audio android.permission.RECORD_AUDIO
view network connections Allows the app to view information about network connections such as which networks exist and are connected. android.permission.ACCESS_NETWORK_STATE
view Wi-Fi connections Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices. android.permission.ACCESS_WIFI_STATE
have full network access Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet. android.permission.INTERNET
android.permission.POST_NOTIFICATIONS Custom app or vendor permission (not publicly documented). android.permission.POST_NOTIFICATIONS
com.google.android.gms.permission.AD_ID Custom app or vendor permission (not publicly documented). com.google.android.gms.permission.AD_ID
control vibration Allows the app to control the vibrator. android.permission.VIBRATE
android.permission.DOWNLOAD_WITHOUT_NOTIFICATION Custom app or vendor permission (not publicly documented). android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
Install Referrer service Allows Google Play to bind to the app's Install Referrer service for install attribution. com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
com.android.vending.BILLING
keep car screen turned on Allows the app to keep the car screen turned on. android.permission.WAKE_LOCK
Cloud messaging receive Allows the app to receive push messages via Google/Firebase Cloud Messaging. com.google.android.c2dm.permission.RECEIVE
android.permission.FOREGROUND_SERVICE_DATA_SYNC Custom app or vendor permission (not publicly documented). android.permission.FOREGROUND_SERVICE_DATA_SYNC
AdServices Attribution Required to call AdServices Attribution APIs. android.permission.ACCESS_ADSERVICES_ATTRIBUTION
AdServices Advertising ID Required to call AdServices Advertising ID APIs. android.permission.ACCESS_ADSERVICES_AD_ID
Dynamic receiver access Internal app permission used to protect dynamic broadcast receivers. com.flexcil.flexcilnote.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Uses Features (10)

Camera Feature for {@link #getSystemAvailableFeatures} and android.hardware.camera
Camera Autofocus Feature for {@link #getSystemAvailableFeatures} and android.hardware.camera.autofocus
android.hardware.camera.back
Camera Front Feature for {@link #getSystemAvailableFeatures} and android.hardware.camera.front
Faketouch Feature for {@link #getSystemAvailableFeatures} and android.hardware.faketouch
Microphone Feature for {@link #getSystemAvailableFeatures} and android.hardware.microphone
Telephony Feature for {@link #getSystemAvailableFeatures} and android.hardware.telephony
Telephony Cdma Feature for {@link #getSystemAvailableFeatures} and android.hardware.telephony.cdma
Telephony Gsm Feature for {@link #getSystemAvailableFeatures} and android.hardware.telephony.gsm
android.hardware.type.pc

Activities (11)

com.flexcil.flexcilnote.activities.WritingViewActivity
com.flexcil.flexcilnote.MainActivity
com.flexcil.flexcilnote.activities.AirBridgeProcessingActivity
com.flexcil.flexcilnote.activities.SaveToDownloadFolderActivity
com.flexcil.flexcilnote.store.FlexcilStoreActivity
net.openid.appauth.AuthorizationManagementActivity
net.openid.appauth.RedirectUriReceiverActivity
com.android.billingclient.api.ProxyBillingActivity
com.android.billingclient.api.ProxyBillingActivityV2
com.google.android.gms.common.api.GoogleApiActivity
com.google.android.play.core.common.PlayCoreDialogWrapperActivity

Services (12)

com.flexcil.flexcilnote.cloudSync.fcm.FCMServiceCloudSync
com.flexcil.flexcilnote.recording.service.RecordingService
com.google.firebase.components.ComponentDiscoveryService
Firebase messaging service Handles push notifications and data messages from Firebase Cloud Messaging. com.google.firebase.messaging.FirebaseMessagingService
com.google.android.gms.measurement.AppMeasurementService
com.google.android.gms.measurement.AppMeasurementJobService
com.google.android.play.core.assetpacks.AssetPackExtractionService
com.google.android.play.core.assetpacks.ExtractionForegroundService
com.google.firebase.sessions.SessionLifecycleService
androidx.room.MultiInstanceInvalidationService
com.google.android.datatransport.runtime.backends.TransportBackendDiscovery
com.google.android.datatransport.runtime.scheduling.jobscheduling.JobInfoSchedulerService

Broadcast Receivers (5)

com.flexcil.flexcilnote.recording.service.RecordingService$StopRecordingReceiver com.flexcil.flexcilnote.recording.service.RecordingService$StopRecordingReceiver
com.google.firebase.iid.FirebaseInstanceIdReceiver com.google.firebase.iid.FirebaseInstanceIdReceiver
com.google.android.gms.measurement.AppMeasurementReceiver com.google.android.gms.measurement.AppMeasurementReceiver
Profile installer Installs performance profiles to speed up app startup and hot paths. androidx.profileinstaller.ProfileInstallReceiver
com.google.android.datatransport.runtime.scheduling.jobscheduling.AlarmManagerSchedulerBroadcastReceiver com.google.android.datatransport.runtime.scheduling.jobscheduling.AlarmManagerSchedulerBroadcastReceiver

Content Providers (4)

androidx.core.content.FileProvider
co.ab180.airbridge.internal.lifecycle.LifecycleProvider
androidx.startup.InitializationProvider
com.google.firebase.provider.FirebaseInitProvider

URL Endpoints (2)

https://flexcil2-274201.firebaseio.com https://studymini.com/lostpassword/?app=true

Submission Details

Submitted At 2026-02-28
First Submission 2026-02-28
Last Submission 2026-02-28
Stored Until 2026-03-30
Names & Tags
Flexcil1.3.1.20.apk apk android contains-elf

Other Versions

com.flexcil.flexcilnote.FlexcilNoteApplication com.flexcil.flexcilnote 1.3.2.17 (579) com.flexcil.flexcilnote.pj.apk Analyzed 2026-02-28 09:05 UTC
View report