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Ransomware

ELPACO-Team Ransomware: Escalating Threat to Windows Systems

Cybersec Sentinel

• 2 min read
ELPACO-Team Ransomware: Escalating Threat to Windows Systems

Threat Group: ELPACO-team
Threat Type: Ransomware
Exploited Vulnerabilities: Outdated software and phishing emails
Malware Used: ELPACO-team Ransomware
Threat Score: High (8.2/10)
Last Threat Observation: October 2024

Overview

The ELPACO-team ransomware is a malicious strain designed to encrypt files and demand ransom payments in cryptocurrency for their release. Known for its aggressive methods, it infiltrates systems via phishing emails, malicious attachments, and outdated software vulnerabilities. The ransomware appends the ".elpaco" extension to encrypted files and leaves a ransom note labeled READ_IT.txt in affected directories, instructing victims to contact attackers for decryption keys. Its high-level threat stems from its ability to lock down crucial files and the difficulty in recovering encrypted data without paying the ransom.

Key Details

  • Delivery Method: Phishing emails, outdated software vulnerabilities, malicious downloads, and cracked software
  • Target: Businesses and individuals, particularly those with poor cybersecurity practices
  • Functions:
    • Encrypts files with the ".elpaco" extension
    • Locks users out of essential data
    • Displays a ransom note both in files and on the system login screen
  • Obfuscation: Conceals its malicious processes behind system operations to avoid detection by security tools

Attack Vectors

ELPACO-team ransomware primarily spreads through phishing emails with malicious attachments or links, exploiting software vulnerabilities. Once on the system, it scans for valuable files and encrypts them. It then demands payment in Bitcoin, warning victims that decryption attempts using third-party tools may lead to permanent data loss. Additionally, pirated software and infected USB drives are commonly used to spread this ransomware.

Known Indicators of Compromise (IoCs)

Based on the information provided about the ELPACO-team ransomware, here are the key IoCs that can be identified:

  • File Indicators:
    • Encrypted File Extension: Files have the ".ELPACO-team" extension appended to their original filenames.
    • Ransom Note Filename: A text file named Decryption_INFO.txt containing ransom instructions is left on the system​.
  • System Indicators:
    • Pre-login Screen Message: Displays a ransom note on the pre-login screen, informing victims before they access the system.
  • Communication Indicators:
    • Email Address: The attackers use the email derick_btc@tuta.io for communication.
    • Telegram Contact: The attackers instruct victims to contact them via Telegram at @DataSupport911.
  • Behavioral Indicators:
    • File Encryption: Encrypts files using sophisticated algorithms and renames them with the ".elpaco" extension​.
    • File Renaming: Files are renamed by appending the ".ELPACO-team" extension.
  • Detection Names:
    • Win32[Trj]
    • Application.Agent.KVJ
    • UDS.Win32.Generic
    • Program/Wacapew.C!ml
  • Target System: The ransomware primarily targets Microsoft Windows systems​(PCRisk)​(Rivitmedia).

Mitigation and Prevention

  • User Awareness: Provide training on recognizing phishing emails and avoiding malicious attachments.
  • Email Filtering: Employ advanced email filtering tools to block suspicious emails.
  • Antivirus Protection: Ensure real-time malware protection and frequent system scans.
  • Two-Factor Authentication (2FA): Implement 2FA for all critical systems.
  • Monitor Logs: Continuously monitor system logs for any unusual activities or file modifications.
  • Regular Updates: Keep operating systems and software patched to close potential vulnerabilities.

Conclusion

The ELPACO-team ransomware is a growing threat that leverages common attack vectors like phishing and outdated software. Organizations should adopt proactive security measures, such as regular backups, user training, and updated antivirus solutions, to mitigate the risk of infection. In the event of an attack, paying the ransom is not recommended, as there is no guarantee of data recovery, and it could embolden further attacks.

Sources:

  1. Rivit Media - Elpaco Team Ransomware: A Growing Cybersecurity Threat
  2. PCRisk - ELPACO-team Ransomware Virus
  3. Enigma Software - ELPACO-team Ransomware Removal Report
  4. Cyclonis - ELPACO-team Ransomware Wants To Rip You Off