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Sophos 2022 Threat Report discusses massive, interconnected ransomware delivery system

Thursday, 25 November 2021 16:15

 Chester Wisniewski

Businesscafe - Sophos, a global leader in next-generation cybersecurity, published the Sophos 2022 Threat Report, which shows how the gravitational force of ransomware’s black hole is pulling in other cyberthreats to form one massive, interconnected ransomware delivery system – with significant implications for IT security.

The report, written by SophosLabs security researchers, Sophos Managed Threat Response threat hunters and rapid responders, and the Sophos AI team, provides a unique multi-dimensional perspective on security threats and trends facing organizations in 2022 and the threat landscape in 2021.

The report highlights that ransomware was involved in 79% of the global incidents, investigated and remediated by the Sophos rapid response team in the last 18 months with around One third calls to the Sophos Rapid Response Service came as a result of Conti and REvil ransomware attacks.

The Sophos 2022 Threat Report analyzes the following key trends:

1. Over the coming year, the ransomware landscape will become both more modular and uniform, with attack “specialists” offering different elements of an attack “as-a-service” and providing playbooks with tools and techniques that enable different adversary groups to implement very similar attacks.


According to Sophos researchers, attacks by single ransomware groups gave way to more ransomware-as-a-service (RaaS) offerings during 2021, with specialist ransomware developers focused on hiring out malicious code and infrastructure to third-party affiliates.


Some of the most high profile ransomware attacks of the year involved RaaS, including an attack against Colonial Pipeline in the U.S. by a DarkSide affiliate.


An affiliate of Conti ransomware leaked the implementation guide provided by the operators, revealing the step-by-step tools and techniques that attackers could use to deploy the ransomware.

Once they have the malware they need, RaaS affiliates and other ransomware operators can turn to Initial Access Brokers and malware delivery platforms to find and target potential victims.


This is fueling the second big trend anticipated by Sophos.


2. Established cyberthreats will continue to adapt to distribute and deliver ransomware.


These include loaders, droppers and other commodity malware; increasingly advanced, human-operated Initial Access Brokers; spam; and adware.


In 2021, Sophos reported on Gootloader operating novel hybrid attacks that combined mass campaigns with careful filtering to pinpoint targets for specific malware bundles.

3. The use of multiple forms of extortion by ransomware attackers to pressure victims into paying the ransom is expected to continue and increase in range and intensity.


In 2021, Sophos incident responders catalogued 10 different types of pressure tactics, from data theft and exposure, to threatening phone calls, distributed denial of service (DDoS) attacks, and more.

4. Cryptocurrency will continue to fuel cybercrimes such as ransomware and malicious cryptomining, and Sophos expects the trend will continue until global cryptocurrencies are better regulated.


During 2021, Sophos researchers uncovered cryptominers such as Lemon Duck and the less common, MrbMiner, taking advantage of the access provided by newly reported vulnerabilities and targets already breached by ransomware operators to install cryptominers on computers and servers.

“Ransomware thrives because of its ability to adapt and innovate,” said Chester Wisniewski, principal research scientist at Sophos.


“For instance, while RaaS offerings are not new, in previous years their main contribution was to bring ransomware within the reach of lower-skilled or less well-funded attackers.


This has changed and, in 2021, RaaS developers are investing their time and energy in creating sophisticated code and determining how best to extract the largest payments from victims, insurance companies, and negotiators.


They’re now offloading to others the tasks of finding victims, installing and executing the malware, and laundering the pilfered cryptocurrencies.


This is distorting the cyberthreat landscape, and common threats, such as loaders, droppers, and Initial Access Brokers that were around and causing disruption well before the ascendancy of ransomware, are being sucked into the seemingly all-consuming ‘black hole’ that is ransomware.

“It is no longer enough for organizations to assume they’re safe by simply monitoring security tools and ensuring they are detecting malicious code.


Certain combinations of detections or even warnings are the modern equivalent of a burglar breaking a flower vase while climbing in through the back window.


Defenders must investigate alerts, even ones which in the past may have been insignificant, as these common intrusions have blossomed into the foothold necessary to take control of entire networks."

Last modified on Thursday, 25 November 2021 16:27