Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/e3/C0325k.java

@@ -0,0 +1,76 @@
+package e3;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Arrays;
+import kotlin.jvm.internal.Intrinsics;
+
+/* renamed from: e3.k, reason: case insensitive filesystem */
+/* loaded from: classes3.dex */
+public final class C0325k {
+
+    /* renamed from: a, reason: collision with root package name */
+    public boolean f6366a = true;
+
+    /* renamed from: b, reason: collision with root package name */
+    public boolean f6367b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public Object f6368c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public Serializable f6369d;
+
+    public C0326l a() {
+        return new C0326l(this.f6366a, this.f6367b, (String[]) this.f6368c, (String[]) this.f6369d);
+    }
+
+    public void b(C0324j... cipherSuites) {
+        Intrinsics.checkNotNullParameter(cipherSuites, "cipherSuites");
+        if (!this.f6366a) {
+            throw new IllegalArgumentException("no cipher suites for cleartext connections");
+        }
+        ArrayList arrayList = new ArrayList(cipherSuites.length);
+        for (C0324j c0324j : cipherSuites) {
+            arrayList.add(c0324j.f6365a);
+        }
+        String[] strArr = (String[]) arrayList.toArray(new String[0]);
+        c((String[]) Arrays.copyOf(strArr, strArr.length));
+    }
+
+    public void c(String... cipherSuites) {
+        Intrinsics.checkNotNullParameter(cipherSuites, "cipherSuites");
+        if (!this.f6366a) {
+            throw new IllegalArgumentException("no cipher suites for cleartext connections");
+        }
+        if (cipherSuites.length == 0) {
+            throw new IllegalArgumentException("At least one cipher suite is required");
+        }
+        this.f6368c = (String[]) cipherSuites.clone();
+    }
+
+    public void d(V... tlsVersions) {
+        Intrinsics.checkNotNullParameter(tlsVersions, "tlsVersions");
+        if (!this.f6366a) {
+            throw new IllegalArgumentException("no TLS versions for cleartext connections");
+        }
+        ArrayList arrayList = new ArrayList(tlsVersions.length);
+        for (V v3 : tlsVersions) {
+            arrayList.add(v3.f6320a);
+        }
+        String[] strArr = (String[]) arrayList.toArray(new String[0]);
+        e((String[]) Arrays.copyOf(strArr, strArr.length));
+    }
+
+    /* JADX WARN: Type inference failed for: r2v4, types: [java.lang.String[], java.io.Serializable] */
+    public void e(String... tlsVersions) {
+        Intrinsics.checkNotNullParameter(tlsVersions, "tlsVersions");
+        if (!this.f6366a) {
+            throw new IllegalArgumentException("no TLS versions for cleartext connections");
+        }
+        if (tlsVersions.length == 0) {
+            throw new IllegalArgumentException("At least one TLS version is required");
+        }
+        this.f6369d = (String[]) tlsVersions.clone();
+    }
+}