Incident Score: Analysis & Impact (STETEL1775175839)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Telegram's Cyber Attack 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 Telegram 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 Telegram breach identified under incident ID STETEL1775175839.
The analysis begins with a detailed overview of Telegram's information like the linkedin page: https://www.linkedin.com/company/telegram, the number of followers: 0, the industry type: Wholesale and the number of employees: 76 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 814 and after the incident was 808 with a difference of -6 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 Telegram and their customers.
A newly reported cybersecurity incident, "New CrystalX RAT Malware-as-a-Service Targets Novice Hackers with Advanced Espionage and Prankware Features", has drawn attention.
Cybersecurity researchers at Kaspersky have uncovered CrystalX RAT, a sophisticated malware-as-a-service (MaaS) offering that combines remote access, data theft, and prankware capabilities to appeal to novice hackers.
The disruption is felt across the environment, and exposing Keylogging data, Clipboard data and Browser data.
Formal response steps have not been shared publicly yet.
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 high confidence (90%), supported by evidence indicating social engineering tactics such as fake software cracks or activators and Drive-by Compromise (T1189) with moderate confidence (60%), supported by evidence indicating promoted aggressively via Telegram and YouTube. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with high confidence (90%), with evidence including fake software cracks or activators, and malware-as-a-service (MaaS) offering and Command and Scripting Interpreter (T1059) with moderate to high confidence (80%), supported by evidence indicating command execution, file system access, real-time machine control. Under the Persistence tactic, the analysis identified Boot or Logon Autostart Execution (T1547) with moderate to high confidence (70%), supported by evidence indicating remote control & espionage capabilities for sustained access. Under the Privilege Escalation tactic, the analysis identified Abuse Elevation Control Mechanism (T1548) with moderate confidence (60%), supported by evidence indicating disabling critical system tools (Task Manager, Command Prompt). Under the Defense Evasion tactic, the analysis identified Masquerading (T1036) with moderate to high confidence (80%), supported by evidence indicating fake software cracks or activators, Virtualization/Sandbox Evasion (T1497) with high confidence (90%), supported by evidence indicating anti-debugging, and VM detection to evade detection, and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (80%), supported by evidence indicating disabling critical system tools (Task Manager, Command Prompt). Under the Credential Access tactic, the analysis identified Input Capture: Keylogging (T1056.001) with high confidence (90%), supported by evidence indicating keylogging, clipboard hijacking and Credentials from Password Stores (T1555) with moderate to high confidence (80%), supported by evidence indicating browser data extraction, and theft from apps like Steam, Discord, and Telegram. Under the Discovery tactic, the analysis identified File and Directory Discovery (T1083) with moderate to high confidence (80%), supported by evidence indicating file system access and Process Discovery (T1057) with moderate to high confidence (70%), supported by evidence indicating real-time machine control. Under the Collection tactic, the analysis identified Screen Capture (T1113) with high confidence (90%), supported by evidence indicating video and audio capture via webcam and microphone, Data from Local System (T1005) with high confidence (90%), supported by evidence indicating keylogging, clipboard hijacking, browser data extraction, and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating theft from apps like Steam, Discord, and Telegram. Under the Command and Control tactic, the analysis identified Remote Access Software (T1219) with high confidence (90%), supported by evidence indicating remote control &espionage such as Command execution, real-time machine control. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating data theft such as Keylogging, clipboard hijacking, browser data extraction. Under the Impact tactic, the analysis identified Service Stop (T1489) with moderate to high confidence (80%), supported by evidence indicating forced shutdowns, Defacement (T1491) with moderate to high confidence (70%), supported by evidence indicating desktop wallpaper changes, fake notifications, and Data Manipulation: Transmitted Data Manipulation (T1565.002) with moderate confidence (60%), supported by evidence indicating cursor manipulation. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Telegram Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/telegram/incident/STETEL1775175839
- Telegram CyberSecurity Rating page: https://www.rankiteo.com/company/telegram
- Telegram Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/stetel1775175839-telegram-steam-cyber-attack-april-2026/
- Telegram CyberSecurity Score History: https://www.rankiteo.com/company/telegram/history
- Telegram CyberSecurity Incident Source: https://www.techradar.com/pro/security/this-new-laughing-rat-malware-will-steal-your-data-and-hack-your-systems-and-then-laugh-at-you-while-doing-it
- 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