{ "capsule": { "schema": "apk-scanner.proof/v2", "issuer": "apk-scanner.com", "issued_at": "2026-10-13T20:05:05.756Z", "app": { "app_id": "com.coolmobilesolution.fastscannerfree", "title": "Fast Scanner - PDF Scan App", "version": "4.7.7" }, "analysis": { "issues": [], "stages": { "pii": "complete", "sbom": "complete", "signing": "certificate_parsed", "strings": "complete", "manifest": "complete" }, "status": "complete", "grading": { "policy": "static-coverage-v1", "blockers": [], "eligible": true }, "timings_ms": { "total": 17676.748, "harvest": 3615.394999999999, "detectors": 13168.069999999998 }, "bytes_total": 61222545, "bytes_scanned": 61222545, "bytes_skipped": 0, "files_processed": 1330, "coverage_version": 2, "string_encodings": [ "ascii", "utf16le" ], "signature_validation": "not_performed" }, "provenance": { "mode": "static", "artifacts": [ { "name": "base.apk", "sha256": "02d20ca8997768fff30e41533a19786e6c39067f9ad154e764e761ac83ede4cc" }, { "name": "config.arm64_v8a.apk", "sha256": "5d0350199ed4f6aca1cb2a99fa5e3366e0694ce5b8bbf0767d61defac7e6771a" }, { "name": "config.en.apk", "sha256": "dbe2ab44ee6dcdb4f28dd0f55846644e3a47561680a59d8b715f507a980ccfaf" }, { "name": "config.es.apk", "sha256": "6e1284b68e097dfce70e044421099881cc0ad2a2aecb1a1ffe308a98002348f5" }, { "name": "config.xxhdpi.apk", "sha256": "dd1796c4ad302484e8b5f68179b55e85c15a0ee8aa859097fc7c9dd550dad680" } ], "ruleset_sha256": "3bb79cc3710b0fb021feaa322578f4cffe08396a97c51b34df092b5a05891d5e" }, "apk_sha256": "02d20ca8997768fff30e41533a19786e6c39067f9ad154e764e761ac83ede4cc", "scan": { "scan_id": "4ad6a50a-d78a-4a77-ab41-55b36f842caf", "scanned_at": "2026-10-12T18:52:52.744Z", "grade": "A", "score": 91 }, "apk_signer": { "scheme": "v3", "subject_o": "coolmobilesolution", "subject_cn": "Hang Nguyen", "sha256": "6d47529d65f634ba83f7f85fe93aa95acc80d6a805ec3ba53dff31fcf964f98f", "not_after": "2064-05-15T18:54:21+00:00" }, "counts": { "critical": 0, "high": 0, "medium": 1, "low": 3, "info": 1 }, "findings": [ { "finding_type": 37, "severity": "info", "title": "Application data is backup-enabled", "redacted_display": "android:allowBackup=\"true\"", "fingerprint": "68d134f0bcd98a9559d6dd5275f80a3928e4a6490ac4a0f1bd16f87683bd49f8", "verified": false, "cwe": [ "CWE-530", "CWE-312" ], "masvs": [ "MASVS-STORAGE-1", "MASVS-STORAGE-2" ], "remediation": "Backup is on by default on Android; this manifest states it explicitly. If the app stores sensitive local data, define dataExtractionRules/fullBackupContent to exclude it, or set android:allowBackup=false." }, { "finding_type": 2, "severity": "low", "title": "Firebase Realtime Database reference", "redacted_display": "https://███████████████████████.firebaseio.com/███", "fingerprint": "733178335ba7f3a856b97c65cc8d86582b36e55a40a3dfa0f3cb197e60cc97d3", "verified": false, "cwe": [ "CWE-200", "CWE-284" ], "masvs": [ "MASVS-STORAGE-2" ], "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open." }, { "finding_type": 20, "severity": "low", "title": "Google API key (client-shipped; restriction unverified)", "redacted_display": "AIza•••••••• (21–40 chars, redacted)", "fingerprint": "ce4a846797e75487eac1e153a6fd1d7047e71931b4203eebd6a0ade63c572f32", "verified": false, "cwe": [ "CWE-798" ], "masvs": [ "MASVS-STORAGE-1" ], "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control." }, { "finding_type": 53, "severity": "low", "title": "Firebase Storage bucket reference", "redacted_display": "████████████", "fingerprint": "a22f1a2578841d29086c638c9fe203cf8782dfb89e06de2dbfa39884827f879e", "verified": false, "cwe": [ "CWE-200", "CWE-284" ], "masvs": [ "MASVS-STORAGE-2" ], "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open." }, { "finding_type": 57, "severity": "medium", "title": "Short signing key (RSA 1024-bit)", "redacted_display": "RSA-1024", "fingerprint": "eff7d2f7607ae274d531546d1e828faf234bca919325efac0bbe80b2f250d041", "verified": false, "cwe": [ "CWE-326" ], "masvs": [ "MASVS-CRYPTO-1" ], "remediation": "Use an RSA key of at least 2048 bits or an EC P-256 key for signing." } ], "live_verification": { "verified_count": 0, "items": [] }, "trackers_count": 7, "pii": { "sources": 3, "identifiers": [ "Advertising ID (AAID)", "Android ID", "Device ID / IMEI" ], "destinations": 4 }, "sbom": { "component_count": 73, "vuln_count": 0, "components": [ { "name": "androidx.activity:activity", "version": "1.6.0", "cves": [] }, { "name": "androidx.annotation:annotation-experimental", "version": "1.4.1", "cves": [] }, { "name": "androidx.appcompat:appcompat", "version": "1.6.1", "cves": [] }, { "name": "androidx.appcompat:appcompat-resources", "version": "1.6.1", "cves": [] }, { "name": "androidx.asynclayoutinflater:asynclayoutinflater", "version": "1.0.0", "cves": [] }, { "name": "androidx.browser:browser", "version": "1.4.0", "cves": [] }, { "name": "androidx.camera.featurecombinationquery:featurecombinationquery", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera.viewfinder:viewfinder-core", "version": "1.5.1", "cves": [] }, { "name": "androidx.camera:camera-camera2", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera:camera-camera2-pipe", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera:camera-core", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera:camera-extensions", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera:camera-lifecycle", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera:camera-video", "version": "1.6.2", "cves": [] }, { "name": "androidx.camera:camera-view", "version": "1.6.2", "cves": [] }, { "name": "androidx.cardview:cardview", "version": "1.0.0", "cves": [] }, { "name": "androidx.coordinatorlayout:coordinatorlayout", "version": "1.1.0", "cves": [] }, { "name": "androidx.core:core", "version": "1.15.0", "cves": [] }, { "name": "androidx.core:core-backported-fixes", "version": "1.0.0", "cves": [] }, { "name": "androidx.core:core-ktx", "version": "1.15.0", "cves": [] }, { "name": "androidx.credentials:credentials", "version": "1.3.0-beta01", "cves": [] }, { "name": "androidx.cursoradapter:cursoradapter", "version": "1.0.0", "cves": [] }, { "name": "androidx.customview:customview", "version": "1.0.0", "cves": [] }, { "name": "androidx.databinding:baseAdapters", "version": "9.3.2", "cves": [] }, { "name": "androidx.databinding:databindingKtx", "version": "9.3.2", "cves": [] }, { "name": "androidx.databinding:library", "version": "9.3.2", "cves": [] }, { "name": "androidx.databinding:viewbinding", "version": "9.3.2", "cves": [] }, { "name": "androidx.datastore:datastore", "version": "1.1.7", "cves": [] }, { "name": "androidx.datastore:datastore-core", "version": "1.1.7", "cves": [] }, { "name": "androidx.datastore:datastore-preferences", "version": "1.1.7", "cves": [] }, { "name": "androidx.datastore:datastore-preferences-core", "version": "1.1.7", "cves": [] }, { "name": "androidx.documentfile:documentfile", "version": "1.0.0", "cves": [] }, { "name": "androidx.drawerlayout:drawerlayout", "version": "1.0.0", "cves": [] }, { "name": "androidx.dynamicanimation:dynamicanimation", "version": "1.0.0", "cves": [] }, { "name": "androidx.emoji2:emoji2", "version": "1.2.0", "cves": [] }, { "name": "androidx.emoji2:emoji2-views-helper", "version": "1.2.0", "cves": [] }, { "name": "androidx.exifinterface:exifinterface", "version": "1.4.2", "cves": [] }, { "name": "androidx.fragment:fragment", "version": "1.5.7", "cves": [] }, { "name": "androidx.interpolator:interpolator", "version": "1.0.0", "cves": [] }, { "name": "androidx.legacy:legacy-support-core-ui", "version": "1.0.0", "cves": [] }, { "name": "androidx.legacy:legacy-support-core-utils", "version": "1.0.0", "cves": [] }, { "name": "androidx.legacy:legacy-support-v4", "version": "1.0.0", "cves": [] }, { "name": "androidx.lifecycle:lifecycle-extensions", "version": "2.0.0", "cves": [] }, { "name": "androidx.loader:loader", "version": "1.1.0", "cves": [] }, { "name": "androidx.localbroadcastmanager:localbroadcastmanager", "version": "1.0.0", "cves": [] }, { "name": "androidx.media:media", "version": "1.0.0", "cves": [] }, { "name": "androidx.preference:preference", "version": "1.1.1", "cves": [] }, { "name": "androidx.print:print", "version": "1.0.0", "cves": [] }, { "name": "androidx.privacysandbox.ads:ads-adservices", "version": "1.1.0-beta11", "cves": [] }, { "name": "androidx.privacysandbox.ads:ads-adservices-java", "version": "1.1.0-beta11", "cves": [] }, { "name": "androidx.profileinstaller:profileinstaller", "version": "1.3.0", "cves": [] }, { "name": "androidx.recyclerview:recyclerview", "version": "1.2.0", "cves": [] }, { "name": "androidx.room:room-runtime", "version": "2.7.0", "cves": [] }, { "name": "androidx.savedstate:savedstate", "version": "1.2.1", "cves": [] }, { "name": "androidx.slidingpanelayout:slidingpanelayout", "version": "1.0.0", "cves": [] }, { "name": "androidx.sqlite:sqlite", "version": "2.5.0", "cves": [] }, { "name": "androidx.sqlite:sqlite-framework", "version": "2.5.0", "cves": [] }, { "name": "androidx.startup:startup-runtime", "version": "1.1.1", "cves": [] }, { "name": "androidx.swiperefreshlayout:swiperefreshlayout", "version": "1.0.0", "cves": [] }, { "name": "androidx.tracing:tracing", "version": "1.3.0", "cves": [] }, { "name": "androidx.tracing:tracing-ktx", "version": "1.3.0", "cves": [] }, { "name": "androidx.transition:transition", "version": "1.2.0", "cves": [] }, { "name": "androidx.vectordrawable:vectordrawable", "version": "1.1.0", "cves": [] }, { "name": "androidx.vectordrawable:vectordrawable-animated", "version": "1.1.0", "cves": [] }, { "name": "androidx.versionedparcelable:versionedparcelable", "version": "1.1.1", "cves": [] }, { "name": "androidx.viewpager2:viewpager2", "version": "1.0.0", "cves": [] }, { "name": "androidx.viewpager:viewpager", "version": "1.0.0", "cves": [] }, { "name": "androidx.work:work-runtime", "version": "2.11.2", "cves": [] }, { "name": "com.google.android.material:material", "version": "1.3.0", "cves": [] }, { "name": "com.google.dagger:dagger", "version": "2.59", "cves": [] }, { "name": "kotlinx:coroutines_android", "version": "1.9.0", "cves": [] }, { "name": "kotlinx:coroutines_core", "version": "1.9.0", "cves": [] }, { "name": "kotlinx:coroutines_play_services", "version": "1.9.0", "cves": [] } ] }, "control_coverage": { "schema": "apk-scanner.coverage/v1", "framework": "OWASP MASVS v2", "disclaimer": "Static, metadata-only analysis. Each control is scored evidence-for / gap-signal / requires-manual-testing. This is evidence toward a MASVS assessment, NOT a certification — apk-scanner.com is not an authorized assessment lab. Absence of a static finding does not prove a control passes.", "rows": [ { "control": "MASVS-STORAGE-1", "category": "STORAGE", "title": "The app securely stores sensitive data.", "static": "partial", "status": "gap-detected", "count": 2, "findings": [ { "finding_type": 37, "key": "allow_backup", "title": "Application data is backup-enabled", "severity": "info", "verified": false, "relationship": "gap-signal", "cwe": [ 530, 312 ] }, { "finding_type": 20, "key": "google_api_key", "title": "Google API key (client-shipped; restriction unverified)", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 798 ] } ] }, { "control": "MASVS-STORAGE-2", "category": "STORAGE", "title": "The app prevents leakage of sensitive data.", "static": "partial", "status": "gap-detected", "count": 3, "findings": [ { "finding_type": 37, "key": "allow_backup", "title": "Application data is backup-enabled", "severity": "info", "verified": false, "relationship": "gap-signal", "cwe": [ 530, 312 ] }, { "finding_type": 2, "key": "firebase_rtdb", "title": "Firebase Realtime Database reference", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 200, 284 ] }, { "finding_type": 53, "key": "firebase_storage", "title": "Firebase Storage bucket reference", "severity": "low", "verified": false, "relationship": "gap-signal", "cwe": [ 200, 284 ] } ] }, { "control": "MASVS-CRYPTO-1", "category": "CRYPTO", "title": "The app employs current strong cryptography and uses it according to best practices.", "static": "partial", "status": "gap-detected", "count": 1, "findings": [ { "finding_type": 57, "key": "short_key", "title": "Short signing key (RSA 1024-bit)", "severity": "medium", "verified": false, "relationship": "gap-confirmed", "cwe": [ 326 ] } ] }, { "control": "MASVS-CRYPTO-2", "category": "CRYPTO", "title": "The app performs key management according to best practices.", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-AUTH-1", "category": "AUTH", "title": "The app uses secure authentication and authorization protocols.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-AUTH-2", "category": "AUTH", "title": "The app performs local authentication securely.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-AUTH-3", "category": "AUTH", "title": "The app secures sensitive operations with additional authentication.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-NETWORK-1", "category": "NETWORK", "title": "The app secures all network traffic according to current best practices.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-NETWORK-2", "category": "NETWORK", "title": "The app verifies the identity of the remote endpoint (e.g. certificate pinning).", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PLATFORM-1", "category": "PLATFORM", "title": "The app uses IPC mechanisms securely.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PLATFORM-2", "category": "PLATFORM", "title": "The app uses WebViews securely.", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PLATFORM-3", "category": "PLATFORM", "title": "The app uses the user interface securely.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-CODE-1", "category": "CODE", "title": "The app requires an up-to-date platform version.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-CODE-2", "category": "CODE", "title": "The app has a mechanism for enforcing updates.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-CODE-3", "category": "CODE", "title": "The app only uses software components without known vulnerabilities.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-CODE-4", "category": "CODE", "title": "The app validates and sanitizes all untrusted inputs and follows secure-coding practice.", "static": "partial", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-1", "category": "RESILIENCE", "title": "The app validates the integrity of the platform.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-2", "category": "RESILIENCE", "title": "The app implements anti-tampering mechanisms.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-3", "category": "RESILIENCE", "title": "The app implements anti-static-analysis mechanisms.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-RESILIENCE-4", "category": "RESILIENCE", "title": "The app implements anti-dynamic-analysis techniques.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-1", "category": "PRIVACY", "title": "The app minimizes access to sensitive data and resources.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-2", "category": "PRIVACY", "title": "The app prevents identification of the user.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-3", "category": "PRIVACY", "title": "The app is transparent about data collection and usage.", "static": "yes", "status": "no-static-findings", "count": 0, "findings": [] }, { "control": "MASVS-PRIVACY-4", "category": "PRIVACY", "title": "The app offers user control over their data.", "static": "manual", "status": "requires-manual-testing", "count": 0, "findings": [] } ], "categories": [ { "category": "STORAGE", "controls": 2, "gaps": 2, "verified": 0, "manual": 0 }, { "category": "CRYPTO", "controls": 2, "gaps": 1, "verified": 0, "manual": 0 }, { "category": "AUTH", "controls": 3, "gaps": 0, "verified": 0, "manual": 3 }, { "category": "NETWORK", "controls": 2, "gaps": 0, "verified": 0, "manual": 0 }, { "category": "PLATFORM", "controls": 3, "gaps": 0, "verified": 0, "manual": 1 }, { "category": "CODE", "controls": 4, "gaps": 0, "verified": 0, "manual": 1 }, { "category": "RESILIENCE", "controls": 4, "gaps": 0, "verified": 0, "manual": 4 }, { "category": "PRIVACY", "controls": 4, "gaps": 0, "verified": 0, "manual": 1 } ] } }, "proof": { "alg": "ed25519", "key_id": "IE6LeZNX4dAAPLGr", "digest_sha256": "b61ced9bc619ee3f30d9de00be79931f3d67ba2bd3fa3f0dff941f4568f74c2a", "signature": "CHZt6KyJmrDTM0zNfFtKqLfJVh8kWZVBkCFoc8X6mELMpS/kio+xOV6Jdp7537nP8TLTliY7dCjtg5/33WylAA==", "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAwH2fYdYB5nD0CQslDtG3FgafcJBoOX2OGoT80Woksrk=\n-----END PUBLIC KEY-----\n", "verify_url": "https://apk-scanner.com/verify" } }