State-Backed Hackers Increasingly Disguised as Ransomware Groups, NCC Group Warns

Executive Summary

The latest Monthly Threat Pulse from NCC Group reveals a significant and troubling trend: nation-state threat actors are increasingly adopting the tactics, tools, and branding of financially motivated ransomware groups. This 'false flag' approach is used to disguise espionage and intelligence-gathering campaigns as common criminal activity. The report, published in June 2026, details a recent operation by MuddyWater, a threat group linked to Iran's Ministry of Intelligence and Security, where the actors mimicked the Chaos ransomware group. By using ransomware notes and negotiation chats, the state-sponsored actors aimed to mislead victims and incident responders, complicating attribution and buying more time to achieve their primary objectives. This convergence of TTPs poses a major challenge for defenders.

Threat Overview

The core finding of the report is the strategic convergence between Advanced Persistent Threats (APTs) and e-crime groups. State actors are realizing the defensive advantages of masquerading as a common criminal gang:

• Delayed Attribution: An attack appearing as standard ransomware may be initially handled by a different set of responders and with a different level of urgency than one immediately identified as state-sponsored espionage.
• Obfuscated Motives: The false flag conceals the true objective, which is typically long-term intelligence gathering, not a quick financial payout. Victims may focus on ransom negotiation and data recovery, ignoring the deeper, more persistent intrusion.
• Shared Infrastructure: The report notes that threat actors are increasingly sharing infrastructure and common tooling (like Cobalt Strike), further blurring the lines and making it difficult to distinguish between groups based on their tools alone.

The specific example cited is a MuddyWater campaign that used branding and extortion notes associated with the Chaos ransomware. This allowed the Iranian APT group to conduct its operations under the guise of a financially motivated attack, likely to steal sensitive information while the victim was distracted by the apparent ransomware incident.

Technical Analysis

The TTPs observed in these blended attacks include:

1. Initial Access: State actors use the same methods as criminal groups, including phishing (T1566 - Phishing) and exploiting public-facing applications (T1190 - Exploit Public-Facing Application).
2. Execution & Persistence: They deploy common, commercially available frameworks like Cobalt Strike for C2 and lateral movement, which are also favorites of ransomware groups.
3. Deception: The key element is the deployment of ransomware-style artifacts. This includes dropping a ransom note (T1486 - Data Encrypted for Impact - though encryption may be limited or fake) and setting up a negotiation channel. This is a form of masquerading (T1036 - Masquerading).
4. True Objective: While the victim is focused on the ransomware 'threat,' the actor proceeds with their real mission: locating and exfiltrating valuable intelligence (T1041 - Exfiltration Over C2 Channel).

The NCC Group report also noted that in May 2026, the Qilin ransomware group was the most active, responsible for 15% of the 749 recorded attacks, followed by a newer group called 'The Gentlemen.' The industrial sector remains the most heavily targeted.

Impact Assessment

The primary impact of this trend is increased complexity and cost for incident response. Defenders can no longer assume an apparent ransomware attack is purely criminal. They must now consider the possibility of a deeper, state-sponsored intrusion running in parallel. This requires a more sophisticated response that looks beyond the immediate ransomware symptoms to hunt for signs of persistent espionage, such as hidden backdoors, new user accounts, and subtle data exfiltration.

Failure to recognize the false flag can lead to a disastrous outcome where a company pays a ransom or restores from backups, believing the incident is over, while the state actor remains embedded in their network, continuing to steal data for months or years. This tactic raises the stakes for all ransomware incidents.

Detection & Response

• Go Beyond the Ransom Note: During a ransomware incident, response teams must not fixate on the encryption and extortion. A parallel threat hunt must be initiated to search for signs of a more advanced, persistent actor.
• Deep Log Analysis: Look for activity that is inconsistent with a typical 'smash and grab' ransomware attack, such as slow, methodical network discovery or access to specific, high-value data repositories that are not typically encrypted.
• Threat Intelligence: Correlate observed TTPs and infrastructure with known APT group profiles. Even if common tools are used, there may be subtle differences in configuration or tradecraft that can point to a specific actor.

Mitigation

• Assume Worst Case: During any significant intrusion, especially in targeted sectors like industrials or defense, incident responders should operate under the assumption that it could be a state-sponsored attack until proven otherwise.
• Comprehensive Remediation: Remediation cannot stop at restoring encrypted files. It must include a full network-wide credential reset, a search for hidden persistence mechanisms, and a thorough review of access logs.
• Defense in Depth: The fundamental defenses against ransomware and APTs are the same: MFA, network segmentation, patch management, and robust endpoint detection. A strong baseline security posture makes it harder for any type of actor to succeed. (MITRE Mitigations: M1032 - Multi-factor Authentication, M1030 - Network Segmentation, M1051 - Update Software)