Cascading Shadows: An Attack Chain Approach to Avoid Detection and Complicate Analysis


In December 2024, Palo Alto Unit 42 researchers uncovered an attack chain that employs distinct, multi-layered stages to deliver malware like Agent Tesla variants, Remcos RAT or XLoader.

Attackers increasingly rely on such complex delivery mechanisms to evade detection, bypass traditional sandboxes, and ensure successful payload delivery and execution. The phishing campaign we analyzed used deceptive emails posing as an order release request to deliver a malicious attachment. This multi-layered attack chain leverages multiple execution paths to evade detection and complicate analysis.

Read more…
Source: Palo Alto Unit 42


Sign up for our Newsletter
The latest news and insights delivered right to your inbox.


Related:

  • Alleged Members of Egregor Ransomware Cartel Arrested

    March 26, 2021

    hree alleged members of the Egregor ransomware cartel were apprehended in Ukraine in a crackdown conducted by the French and Ukrainian authorities last month. The arrests were also made possible with the help of private-public sector partnerships, which include Trend Micro. About Egregor ransomware Since its first appearance in September 2020, Egregor ransomware has been involved in ...

  • Insurance Giant CNA Hit with Novel Ransomware Attack

    March 26, 2021

    A novel ransomware attack forced insurance giant CNA to take systems offline and temporarily shutter its website. The attack occurred earlier this week and leveraged a new variant of the Phoenix CryptoLocker malware. The Chicago-based company—the seventh largest commercial insurance provider in the world—said it “sustained a sophisticated cybersecurity attack” on Sunday, March 21, according to ...

  • Threat Assessment: Matrix Ransomware

    March 26, 2021

    Matrix is a ransomware family that was first identified publicly in December 2016. Over the years since its inception, it has primarily targeted small- to medium-sized organizations. As of 2019, it had been observed across geographic locations such as the U.S., Belgium, Taiwan, Singapore, Germany, Brazil, Chile, South Africa, Canada and the UK. While initially leveraging ...

  • Fleeceware Apps Bank $400M in Revenue

    March 25, 2021

    About 204 different “fleeceware” applications with a combined billion+ downloads have raked in more than $400 million in revenue so far, via the Apple App Store and Google Play, analysis has revealed. Fleeceware apps generally offer users a free trial to “test” the app, before commencing automatic payments that can be exorbitant. In an analysis from ...

  • Threat landscape for industrial automation systems. Statistics for H2 2020

    March 25, 2021

    There is no longer a downward trend in the percentage of ICS computers on which malicious objects were blocked. Starting with the second half (H2) of 2019, we observed a decline in the percentages of ICS computers on which malicious objects were blocked. This was observed in industrial control systems (ICS) as well as in corporate ...

  • Fake Websites Used in COVID-19 Themed Phishing Attacks, Impersonating Brands Like Pfizer and BioNTech

    March 25, 2021

    In April 2020, we reported on a large influx of COVID-19 themed phishing attacks starting in February 2020. With March 2021 marking the one-year anniversary that the World Health Organization declared COVID-19 a pandemic, we revisited the phishing trends we observed in the past year to gain deeper insight into the various COVID-related topics that ...