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Analyze » F5 Labs Threat Research » CRICYBF5LFOR1776854731

Incident Score: Analysis & Impact (CRICYBF5LFOR1776854731)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-4
Company Score Before Incident755 / 1000
Company Score After Incident751 / 1000
INCIDENT NUMBERCRICYBF5LFOR1776854731
Type of Cyber IncidentVulnerability
ATTACK VECTORdouble-extortion, initial_access_broker, zero-day_exploits, unpatched_vulnerabilities, malicious_npm_packages
DATA EXPOSED5TB (Hospitality Holdings), 3.8TB (South...
INCIDENT DATE28/02/2026
STATUSpublished

Key Highlights From The Incident Analysis

  • Timeline of F5 Labs Threat Research's Vulnerability and lateral movement inside company's environment.
  • Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
  • How Rankiteo’s incident engine converts technical details into a normalized incident score.
  • How this cyber incident impacts F5 Labs Threat Research Rankiteo cyber scoring and cyber rating.
  • Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.

Full Incident Analysis Transcript

In this Rankiteo incident briefing, we review the F5 Labs Threat Research breach identified under incident ID CRICYBF5LFOR1776854731.

The analysis begins with a detailed overview of F5 Labs Threat Research's information like the linkedin page: https://www.linkedin.com/company/f5labs, the number of followers: 9513, the industry type: IT Services and IT Consulting and the number of employees: None employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 755 and after the incident was 751 with a difference of -4 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on F5 Labs Threat Research and their customers.

Hospitality Holdings recently reported "March 2026 Cyber Threat Landscape: Ransomware, Access Brokers, and Critical Vulnerabilities Drive Global Risks", a noteworthy cybersecurity incident.

The cybersecurity threat landscape in March 2026 saw heightened activity, with ransomware attacks, data breaches, and underground access markets shaping a volatile environment.

The disruption is felt across the environment, affecting Cisco Secure Firewall Management Center, F5 BIG-IP APM and Microsoft SharePoint Server, and exposing 5TB (Hospitality Holdings), 3.8TB (South African government) and 95,000 travel records, with nearly ['5TB', '3.8TB', '95,000'] records at risk.

Formal response steps have not been shared publicly yet.

Overall, the incident is a reminder of why proactive monitoring and strong governance matter.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

MITRE ATT&CK® Correlation Analysis

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating cVE-2026-20131 (Cisco Secure Firewall), CVE-2025-53521 (F5 BIG-IP APM), Supply Chain Compromise: Compromise Software Supply Chain (T1195.002) with moderate to high confidence (80%), supported by evidence indicating 26 malicious npm packages containing RATs via Pastebin and Vercel, Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating unauthorized network access surged, with 20 incidents tracked, and External Remote Services (T1133) with moderate to high confidence (70%), supported by evidence indicating 600+ Fortinet FortiGate devices compromised across 55 countries. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with moderate to high confidence (80%), supported by evidence indicating zero-day exploits and unpatched legacy vulnerabilities weaponized and Command and Scripting Interpreter (T1059) with moderate to high confidence (70%), supported by evidence indicating aI-driven attacks using CyberStrikeAI framework. Under the Persistence tactic, the analysis identified External Remote Services (T1133) with moderate to high confidence (70%), supported by evidence indicating 600+ Fortinet FortiGate devices compromised and Server Software Component: Web Shell (T1505.003) with moderate confidence (60%), supported by evidence indicating unauthorized network access surged, facilitating ransomware. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with moderate to high confidence (80%), supported by evidence indicating cVE-2026-20963 (Microsoft SharePoint Server) exploited. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate to high confidence (70%), supported by evidence indicating malicious npm packages distributed via Pastebin and Vercel and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (60%), supported by evidence indicating aI-driven attacks likely bypassed traditional defenses. Under the Credential Access tactic, the analysis identified Brute Force (T1110) with moderate confidence (60%), supported by evidence indicating unauthorized network access surged, likely involving credential abuse and Adversary-in-the-Middle (T1557) with moderate confidence (50%), supported by evidence indicating initial access brokers facilitating ransomware and espionage. Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate to high confidence (70%), supported by evidence indicating high-value targets such as Professional Services (25%) and Retail (20%) and Network Service Discovery (T1046) with moderate confidence (60%), supported by evidence indicating 600+ Fortinet FortiGate devices compromised across 55 countries. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with moderate to high confidence (80%), supported by evidence indicating cVE-2026-20131 (Cisco Secure Firewall) and CVE-2021-22681 (Rockwell ICS) and Remote Services: Remote Desktop Protocol (T1021.001) with moderate confidence (60%), supported by evidence indicating unauthorized network access surged, facilitating lateral movement. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating 5TB of data (Hospitality Holdings), 3.8TB (South African government) and Automated Collection (T1119) with moderate to high confidence (70%), supported by evidence indicating 95,000 travel records including passport and payment details. Under the Command and Control tactic, the analysis identified Application Layer Protocol (T1071) with moderate to high confidence (80%), supported by evidence indicating aI-driven attacks using CyberStrikeAI framework and Ingress Tool Transfer (T1105) with moderate to high confidence (70%), supported by evidence indicating malicious npm packages distributed via Pastebin and Vercel. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating 5TB and 3.8TB data breaches, double-extortion tactics and Exfiltration Over Web Service: Exfiltration to Cloud Storage (T1567.002) with moderate confidence (60%), supported by evidence indicating data sold on dark web, likely via cloud-based exfiltration. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating ransomware strains (Qilin, Akira) used data encryption, Inhibit System Recovery (T1490) with moderate to high confidence (70%), supported by evidence indicating double-extortion tactics maximize pressure on victims, and Data Destruction (T1485) with moderate confidence (50%), supported by evidence indicating ransomware attacks targeting industries reliant on uptime. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Exploit Public-Facing Application (90%)
Supply Chain Compromise: Compromise Software Supply Chain (80%)
Valid Accounts (70%)
External Remote Services (70%)
Execution
Exploitation for Client Execution (80%)
Command and Scripting Interpreter (70%)
Persistence
External Remote Services (70%)
Server Software Component: Web Shell (60%)
Privilege Escalation
Exploitation for Privilege Escalation (80%)
Defense Evasion
Obfuscated Files or Information (70%)
Impair Defenses: Disable or Modify Tools (60%)
Credential Access
Brute Force (60%)
Adversary-in-the-Middle (50%)
Discovery
Account Discovery (70%)
Network Service Discovery (60%)
Lateral Movement
Exploitation of Remote Services (80%)
Remote Services: Remote Desktop Protocol (60%)
Collection
Data from Local System (90%)
Automated Collection (70%)
Command and Control
Application Layer Protocol (80%)
Ingress Tool Transfer (70%)
Exfiltration
Exfiltration Over C2 Channel (90%)
Exfiltration Over Web Service: Exfiltration to Cloud Storage (60%)
Impact
Data Encrypted for Impact (90%)
Inhibit System Recovery (70%)
Data Destruction (50%)

Sources & References