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/M.java

@@ -0,0 +1,149 @@
+package e3;
+
+import java.io.File;
+import kotlin.Deprecated;
+import kotlin.DeprecationLevel;
+import kotlin.ReplaceWith;
+import kotlin.jvm.JvmName;
+import kotlin.jvm.JvmOverloads;
+import kotlin.jvm.JvmStatic;
+import kotlin.jvm.internal.Intrinsics;
+import r3.C0579k;
+import r3.InterfaceC0577i;
+
+/* loaded from: classes3.dex */
+public abstract class M {
+    public static final L Companion = new Object();
+
+    @Deprecated(level = DeprecationLevel.WARNING, message = "Moved to extension function. Put the 'file' argument first to fix Java", replaceWith = @ReplaceWith(expression = "file.asRequestBody(contentType)", imports = {"okhttp3.RequestBody.Companion.asRequestBody"}))
+    @JvmStatic
+    public static final M create(A a2, File file) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(file, "file");
+        Intrinsics.checkNotNullParameter(file, "<this>");
+        return new J(a2, file, 0);
+    }
+
+    public abstract long contentLength();
+
+    public abstract A contentType();
+
+    public boolean isDuplex() {
+        return false;
+    }
+
+    public boolean isOneShot() {
+        return false;
+    }
+
+    public abstract void writeTo(InterfaceC0577i interfaceC0577i);
+
+    @Deprecated(level = DeprecationLevel.WARNING, message = "Moved to extension function. Put the 'content' argument first to fix Java", replaceWith = @ReplaceWith(expression = "content.toRequestBody(contentType)", imports = {"okhttp3.RequestBody.Companion.toRequestBody"}))
+    @JvmStatic
+    public static final M create(A a2, String content) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(content, "content");
+        return L.b(content, a2);
+    }
+
+    @Deprecated(level = DeprecationLevel.WARNING, message = "Moved to extension function. Put the 'content' argument first to fix Java", replaceWith = @ReplaceWith(expression = "content.toRequestBody(contentType)", imports = {"okhttp3.RequestBody.Companion.toRequestBody"}))
+    @JvmStatic
+    public static final M create(A a2, C0579k content) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(content, "content");
+        Intrinsics.checkNotNullParameter(content, "<this>");
+        return new J(a2, content, 1);
+    }
+
+    @Deprecated(level = DeprecationLevel.WARNING, message = "Moved to extension function. Put the 'content' argument first to fix Java", replaceWith = @ReplaceWith(expression = "content.toRequestBody(contentType, offset, byteCount)", imports = {"okhttp3.RequestBody.Companion.toRequestBody"}))
+    @JvmStatic
+    @JvmOverloads
+    public static final M create(A a2, byte[] content) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(content, "content");
+        int length = content.length;
+        Intrinsics.checkNotNullParameter(content, "content");
+        return L.a(a2, content, 0, length);
+    }
+
+    @Deprecated(level = DeprecationLevel.WARNING, message = "Moved to extension function. Put the 'content' argument first to fix Java", replaceWith = @ReplaceWith(expression = "content.toRequestBody(contentType, offset, byteCount)", imports = {"okhttp3.RequestBody.Companion.toRequestBody"}))
+    @JvmStatic
+    @JvmOverloads
+    public static final M create(A a2, byte[] content, int i) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(content, "content");
+        int length = content.length;
+        Intrinsics.checkNotNullParameter(content, "content");
+        return L.a(a2, content, i, length);
+    }
+
+    @JvmStatic
+    @JvmName(name = "create")
+    public static final M create(String str, A a2) {
+        Companion.getClass();
+        return L.b(str, a2);
+    }
+
+    @JvmStatic
+    @JvmOverloads
+    @JvmName(name = "create")
+    public static final M create(byte[] bArr) {
+        L l4 = Companion;
+        l4.getClass();
+        Intrinsics.checkNotNullParameter(bArr, "<this>");
+        return L.c(l4, bArr, null, 0, 7);
+    }
+
+    @JvmStatic
+    @JvmOverloads
+    @JvmName(name = "create")
+    public static final M create(byte[] bArr, A a2) {
+        L l4 = Companion;
+        l4.getClass();
+        Intrinsics.checkNotNullParameter(bArr, "<this>");
+        return L.c(l4, bArr, a2, 0, 6);
+    }
+
+    @JvmStatic
+    @JvmOverloads
+    @JvmName(name = "create")
+    public static final M create(byte[] bArr, A a2, int i) {
+        L l4 = Companion;
+        l4.getClass();
+        Intrinsics.checkNotNullParameter(bArr, "<this>");
+        return L.c(l4, bArr, a2, i, 4);
+    }
+
+    @JvmStatic
+    @JvmOverloads
+    @JvmName(name = "create")
+    public static final M create(byte[] bArr, A a2, int i, int i4) {
+        Companion.getClass();
+        return L.a(a2, bArr, i, i4);
+    }
+
+    @JvmStatic
+    @JvmName(name = "create")
+    public static final M create(C0579k c0579k, A a2) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(c0579k, "<this>");
+        return new J(a2, c0579k, 1);
+    }
+
+    @JvmStatic
+    @JvmName(name = "create")
+    public static final M create(File file, A a2) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(file, "<this>");
+        return new J(a2, file, 0);
+    }
+
+    @Deprecated(level = DeprecationLevel.WARNING, message = "Moved to extension function. Put the 'content' argument first to fix Java", replaceWith = @ReplaceWith(expression = "content.toRequestBody(contentType, offset, byteCount)", imports = {"okhttp3.RequestBody.Companion.toRequestBody"}))
+    @JvmStatic
+    @JvmOverloads
+    public static final M create(A a2, byte[] content, int i, int i4) {
+        Companion.getClass();
+        Intrinsics.checkNotNullParameter(content, "content");
+        return L.a(a2, content, i, i4);
+    }
+}