Book Image

Malware Analysis Techniques

By : Dylan Barker
Book Image

Malware Analysis Techniques

By: Dylan Barker

Overview of this book

Malicious software poses a threat to every enterprise globally. Its growth is costing businesses millions of dollars due to currency theft as a result of ransomware and lost productivity. With this book, you'll learn how to quickly triage, identify, attribute, and remediate threats using proven analysis techniques. Malware Analysis Techniques begins with an overview of the nature of malware, the current threat landscape, and its impact on businesses. Once you've covered the basics of malware, you'll move on to discover more about the technical nature of malicious software, including static characteristics and dynamic attack methods within the MITRE ATT&CK framework. You'll also find out how to perform practical malware analysis by applying all that you've learned to attribute the malware to a specific threat and weaponize the adversary's indicators of compromise (IOCs) and methodology against them to prevent them from attacking. Finally, you'll get to grips with common tooling utilized by professional malware analysts and understand the basics of reverse engineering with the NSA's Ghidra platform. By the end of this malware analysis book, you’ll be able to perform in-depth static and dynamic analysis and automate key tasks for improved defense against attacks.
Table of Contents (17 chapters)
Section 1: Basic Techniques
Section 2: Debugging and Anti-Analysis – Going Deep
Section 3: Reporting and Weaponizing Your Findings
Section 4: Challenge Solutions

Case study – TrickBot

Let's take a look now at some real-world examples of malware that we can analyze and observe performing malicious activity, performing network requests and process injection, and being naughty in general.

TrickBot is a banking Trojan from a threat actor tracked as WIZARD SPIDER. TrickBot has many core functionalities, one of which is to utilize process hollowing to masquerade within the environment.

Let's grab a sample and run it within our VM. First, we'll utilize Regshot, ProcMon, and ProcWatch to identify file information and registry key changes, as follows:

  1. First, we'll take our baseline snapshot. This will serve as the comparison point, as we've previously discussed in the Regshot section. The following screenshot illustrates this:
    Figure 6.32 – The results of our first TrickBot shot

    Figure 6.32 – The results of our first TrickBot shot

  2. After taking our baseline shot, we'll go ahead and execute the malicious document containing the TrickBot downloader...