Mobile Malware Analysis

What technology does this worm used to multiply?

What operating system did it infect?

What message did it show on the screen of the infected mobile phone?

The worm was created and sent out by researchers as a PoC (Proof of Concept), they did not believe that the mobile operating system could be easily exploited. Since then, malicious programs have become more popular. 

What is the format of the file?

The sample's size is 10,1 bytes, so it seems that it is not a complex application.

Decode the name of the sample.

Which is the target platform?

What does Avast-Mobile can tell us about this software?

The results provided by VirusTotal shows that we have a generic malware. It does not serve for attack purposes because we can see that a good part of the Antiviruses are detecting it, this malware is a good one for searching purposes, but it is also used for post exploitation.

What is the package name?

What is the SHA-1 signature?

By extracting the content, it will create a folder with some files inside, one of which is a XML. It describes some important information about the application for Android build tools, for Android operating system and for Google Play. This file declares items, shows some stuff as the package name and the permissions required to the device. The information that will be needed for the next questions can be found on VirusTotal also.

What is the unique XML file?

How many permissions are there inside?

Which permission allows the application to take pictures with the camera?

What is the message left by the community?

What is the programming language used to create the program?

How many signatures does the package has?

MobSF gives all the code decompiled. Just a base of programming make us able to understand a little bit of what is happening.

What is the App name?

It looks like  there is a function calling for the package manager, so it can see all the installed applications. What function is that?

Returning to the manifest.

The flag "android:allowBackup" allows the user to backup application data via USB debugging. It is recommended that this be set as "False", even if by default it is "True".

What is the severity of this configuration?

After finding the sample on VirusTotal, what does the "Avast" anti-virus engine recognizes it as?

With what we have, try to find out the name of the sample.

It seems like it is a very dangerous malware and has a big history of destruction.

This became news for spying journalists, what year was that?

It was reported that the malware was developed by a legitimate intention:  The idea behind it was to use the software as a government tool designed to  track and combat terrorism and crime.

This malware has been found infecting people's smartphones and political activists in more than 44 countries.

If we search the name we found of the malware in MITRE ATT&CK (https://attack.mitre.org/), we can find some interesting information. 

What is the ID of the MITRE ATT&CK that is associated with our sample?

What technique has the ability to exploit OS vulnerabilities to escalate privileges?

Now, let's go back to the MobSF analysis.

There is a permission that when accepted, allows the application to access the list of accounts in the Accounts Service. What is the status shown by MobSF regarding this permission. (android.permission.GET.ACCOUNTS)

What org.eclipse.paho.client file refers to properties of Portuguese from Brazil (pt-br)?

This software has several features that make the identification and the processes it performs to explore the target, harder to handle, even when it is being analyzed.

The malware has a special appeal for its safety and its internal components, reducing the risk of compromise. It has a functionality for its cryptographic operations with the feature of a random bit generation service. How can it be identified?

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