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Analyze » Change Healthcare » UNICHA1776140687

Incident Score: Analysis & Impact (UNICHA1776140687)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact0
Company Score Before Incident100 / 1000
Company Score After Incident100 / 1000
Company LinkView Change Healthcare Profile
INCIDENT NUMBERUNICHA1776140687
Type of Cyber IncidentRansomware
ATTACK VECTORNA
DATA EXPOSEDSensitive patient data
INCIDENT DATE13/04/2026
STATUSOngoing

Key Highlights From The Incident Analysis

  • Timeline of Change Healthcare's Ransomware 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 Change Healthcare 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 Change Healthcare breach identified under incident ID UNICHA1776140687.

The analysis begins with a detailed overview of Change Healthcare's information like the linkedin page: https://www.linkedin.com/company/change-healthcare, the number of followers: 147311, the industry type: IT Services and IT Consulting and the number of employees: 4617 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 100 and after the incident was 100 with a difference of 0 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 Change Healthcare and their customers.

On 21 February 2024, Change Healthcare disclosed Ransomware issues under the banner "Ransomware Attack on Change Healthcare Disrupts U.S. Healthcare Network".

A ransomware attack on Change Healthcare, a key subsidiary of UnitedHealth Group (UHG), caused widespread disruptions across the U.S.

The disruption is felt across the environment, affecting Prescription processing, Insurance claims and Payment systems, and exposing Sensitive patient data.

In response, moved swiftly to contain the threat with measures like Systems taken offline, and began remediation that includes Restoring services (ongoing as of March 2024).

The case underscores how Ongoing, with advisories going out to stakeholders covering American Hospital Association (AHA) urged federal agencies for emergency funding and support.

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 moderate to high confidence (80%), supported by evidence indicating exploited vulnerabilities in Change Healthcare’s IT infrastructure. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with moderate to high confidence (70%), supported by evidence indicating blackCat/ALPHV ransomware group attributed to the attack. Under the Persistence tactic, the analysis identified Scheduled Task/Job (T1053) with moderate confidence (50%), supported by evidence indicating systems taken offline; likely persistence mechanisms used (implied). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating ransomware attack...halting critical services such as prescription processing and Defacement (T1491) with lower confidence (30%), supported by evidence indicating blackCat/ALPHV claimed responsibility (dark web post removed). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating breach exposed sensitive patient data (data exfiltration implied). Under the Credential Access tactic, the analysis identified Brute Force (T1110) with moderate confidence (50%), supported by evidence indicating vulnerabilities in IT infrastructure exploited (credential access likely). Under the Defense Evasion tactic, the analysis identified Indicator Removal (T1070) with moderate confidence (60%), supported by evidence indicating blackCat/ALPHV removed its dark web post (tactic often associated with negotiations) and Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating systems taken offline to contain the attack. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating sensitive patient data exposed via the breach. 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 (80%)
Execution
Exploitation for Client Execution (70%)
Persistence
Scheduled Task/Job (50%)
Impact
Data Encrypted for Impact (90%)
Defacement (30%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Credential Access
Brute Force (50%)
Defense Evasion
Indicator Removal (60%)
Disable or Modify Tools (70%)
Collection
Data from Local System (80%)

Sources & References