Incident Score: Analysis & Impact (SMA1770688489)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of SmarterTools'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 SmarterTools 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 SmarterTools breach identified under incident ID SMA1770688489.
The analysis begins with a detailed overview of SmarterTools's information like the linkedin page: https://www.linkedin.com/company/smartertools, the number of followers: 1159, the industry type: Software Development and the number of employees: 23 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 653 and after the incident was 537 with a difference of -116 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 SmarterTools and their customers.
On 29 January 2024, SmarterTools disclosed Ransomware issues under the banner "SmarterTools Breach Linked to Critical SmarterMail Vulnerabilities Exploited by Warlock Ransomware Group".
SmarterTools, the vendor behind the SmarterMail email server, recently disclosed a breach stemming from two critical vulnerabilities in its own product.
The disruption is felt across the environment, affecting 12 Windows servers, internal network, data center (lab and quality control).
In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Shut down all servers, Disabled internet access and Network restructuring, and began remediation that includes Applied patches (SmarterMail release 9511), Eliminated Windows dependencies where possible and Reset all passwords, and stakeholders are being briefed through Urged customers to update to patched version and investigate potential breaches using indicators of compromise.
The case underscores how Ongoing, and recommending next steps like Improve transparency in security communications, ensure timely patching, investigate potential breaches using provided indicators of compromise, with advisories going out to stakeholders covering Customers urged to update to patched version and investigate potential breaches.
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 (95%), supported by evidence indicating exploited two critical vulnerabilities in its own product (CVE-2026-24423, CVE-2026-23760). Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with high confidence (90%), supported by evidence indicating unauthenticated remote-code execution bug in the *ConnectToHub* API method (CVE-2026-24423) and Command and Scripting Interpreter (T1059) with moderate to high confidence (80%), supported by evidence indicating execute commands, and eventually gain control of Active Directory. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with high confidence (90%), supported by evidence indicating authentication bypass enabling forced admin password resets (CVE-2026-23760) and Valid Accounts (T1078) with moderate to high confidence (85%), supported by evidence indicating gain control of Active Directory. Under the Defense Evasion tactic, the analysis identified Valid Accounts: Domain Accounts (T1078.002) with moderate to high confidence (80%), supported by evidence indicating active Directory takeover and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating sentinelOne assisted in detecting the intrusion and preventing encryption. Under the Credential Access tactic, the analysis identified Brute Force: Password Guessing (T1110.001) with moderate to high confidence (70%), supported by evidence indicating authentication bypass enabling forced admin password resets (CVE-2026-23760) and OS Credential Dumping: Security Account Manager (T1003.002) with moderate to high confidence (80%), supported by evidence indicating gain control of Active Directory. Under the Discovery tactic, the analysis identified Account Discovery: Domain Account (T1087.002) with moderate to high confidence (80%), supported by evidence indicating active Directory takeover and Remote System Discovery (T1018) with moderate to high confidence (75%), supported by evidence indicating lateral movement, and delayed ransomware execution. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with moderate to high confidence (85%), supported by evidence indicating lateral movement...mirroring attacks observed on customer systems and Remote Services: SMB/Windows Admin Shares (T1021.002) with moderate to high confidence (80%), supported by evidence indicating compromised 12 Windows servers. Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with moderate to high confidence (70%), supported by evidence indicating redirect SmarterMail instances to a malicious server. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (95%), with evidence including ransomware deployment, and data encryption such as true. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- SmarterTools Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/smartertools/incident/SMA1770688489
- SmarterTools CyberSecurity Rating page: https://www.rankiteo.com/company/smartertools
- SmarterTools Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/sma1770688489-smartertools-smartermail-customers-ransomware-january-2026/
- SmarterTools CyberSecurity Score History: https://www.rankiteo.com/company/smartertools/history
- SmarterTools CyberSecurity Incident Source: https://www.darkreading.com/application-security/warlock-gang-breaches-smartertools-smartermail-bugs
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf