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Analyze » DuPage County » DUP1772310374

Incident Score: Analysis & Impact (DUP1772310374)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-125
Company Score Before Incident765 / 1000
Company Score After Incident640 / 1000
Company LinkView DuPage County Profile
INCIDENT NUMBERDUP1772310374
Type of Cyber IncidentRansomware
ATTACK VECTORmalicious email attachments, links, compromised websites
DATA EXPOSEDNA
INCIDENT DATE28/04/2025
STATUSongoing

Key Highlights From The Incident Analysis

  • Timeline of DuPage County'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 DuPage County 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 DuPage County breach identified under incident ID DUP1772310374.

The analysis begins with a detailed overview of DuPage County's information like the linkedin page: https://www.linkedin.com/company/dupage-county, the number of followers: 9233, the industry type: Government Administration and the number of employees: 1486 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 765 and after the incident was 640 with a difference of -125 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 DuPage County and their customers.

DuPage County Sheriff’s Office recently reported "Ransomware Attack Disrupts DuPage County Sheriff’s Office and Courthouse Systems", a noteworthy cybersecurity incident.

A ransomware attack struck DuPage County, Illinois, early Monday morning, forcing the shutdown of critical computer systems at the sheriff’s office, circuit clerk’s office, and courthouse.

The disruption is felt across the environment, affecting critical computer systems at the sheriff’s office, circuit clerk’s office, and courthouse.

In response, moved swiftly to contain the threat with measures like shutdown of critical computer systems.

The case underscores how ongoing.

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 Phishing (T1566) with moderate to high confidence (80%), supported by evidence indicating infections often occur through malicious email attachments, links and Exploit Public-Facing Application (T1190) with moderate confidence (60%), supported by evidence indicating or compromised websites. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating malicious email attachments, links. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating ransomware...encrypts files, demanding payment for restoration and Inhibit System Recovery (T1490) with moderate to high confidence (70%), supported by evidence indicating shutdown of critical computer systems. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate confidence (60%), supported by evidence indicating ransomware...malware that locks users out of their systems. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate confidence (50%), supported by evidence indicating no details on malware’s origin or extent of breach. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Phishing (80%)
Exploit Public-Facing Application (60%)
Execution
User Execution: Malicious File (70%)
Impact
Data Encrypted for Impact (90%)
Inhibit System Recovery (70%)
Defense Evasion
Obfuscated Files or Information (60%)
Exfiltration
Exfiltration Over C2 Channel (50%)

Sources & References