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/r3/v.java

@@ -0,0 +1,74 @@
+package r3;
+
+import f0.C0338b;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.nio.file.FileSystemException;
+import java.nio.file.Files;
+import java.nio.file.LinkOption;
+import java.nio.file.NoSuchFileException;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.nio.file.attribute.FileTime;
+import kotlin.jvm.internal.Intrinsics;
+
+/* loaded from: classes3.dex */
+public final class v extends u {
+    public static Long k(FileTime fileTime) {
+        long millis = fileTime.toMillis();
+        Long valueOf = Long.valueOf(millis);
+        if (millis != 0) {
+            return valueOf;
+        }
+        return null;
+    }
+
+    @Override // r3.u, r3.n
+    public final m f(z path) {
+        z zVar;
+        Intrinsics.checkNotNullParameter(path, "path");
+        Path nioPath = path.f();
+        Intrinsics.checkNotNullParameter(nioPath, "nioPath");
+        try {
+            BasicFileAttributes readAttributes = Files.readAttributes(nioPath, (Class<BasicFileAttributes>) BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS);
+            Path readSymbolicLink = readAttributes.isSymbolicLink() ? Files.readSymbolicLink(nioPath) : null;
+            boolean isRegularFile = readAttributes.isRegularFile();
+            boolean isDirectory = readAttributes.isDirectory();
+            if (readSymbolicLink != null) {
+                String str = z.f8321b;
+                Intrinsics.checkNotNullParameter(readSymbolicLink, "<this>");
+                zVar = C0338b.o(readSymbolicLink.toString());
+            } else {
+                zVar = null;
+            }
+            Long valueOf = Long.valueOf(readAttributes.size());
+            FileTime creationTime = readAttributes.creationTime();
+            Long k4 = creationTime != null ? k(creationTime) : null;
+            FileTime lastModifiedTime = readAttributes.lastModifiedTime();
+            Long k5 = lastModifiedTime != null ? k(lastModifiedTime) : null;
+            FileTime lastAccessTime = readAttributes.lastAccessTime();
+            return new m(isRegularFile, isDirectory, zVar, valueOf, k4, k5, lastAccessTime != null ? k(lastAccessTime) : null);
+        } catch (NoSuchFileException | FileSystemException unused) {
+            return null;
+        }
+    }
+
+    @Override // r3.u
+    public final void i(z source, z target) {
+        Intrinsics.checkNotNullParameter(source, "source");
+        Intrinsics.checkNotNullParameter(target, "target");
+        try {
+            Files.move(source.f(), target.f(), StandardCopyOption.ATOMIC_MOVE, StandardCopyOption.REPLACE_EXISTING);
+        } catch (UnsupportedOperationException unused) {
+            throw new IOException("atomic move not supported");
+        } catch (NoSuchFileException e4) {
+            throw new FileNotFoundException(e4.getMessage());
+        }
+    }
+
+    @Override // r3.u
+    public final String toString() {
+        return "NioSystemFileSystem";
+    }
+}