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Rewterz Threat Alert – NJRAT – Active IOCs
May 19, 2022
Rewterz Threat Alert – Remcos RAT – Active IOCs
May 19, 2022

Rewterz Threat Alert – HawkEye Infostealer – Active IOCs

May 19, 2022

Severity

Medium

Analysis Summary

HawkEye, primarily an infostealer, has additional capabilities such as bypassing of AV systems and keylogging. A spear-phishing campaign is detected using malicious RTF documents sent via corona-themed emails to distribute the HawkEye keylogger. While most malicious RTF documents use exploits to trigger Object Linking and Embedding (OLE) calls, in this case, the documents use the \objupdate switch. A victim would need to enable macros for the infection process to begin. The embedded OLE objects, five of them in this case, appear to be macro-enabled Excel sheets. PowerShell is used to execute .NET code which downloads and executes the Hawkeye payload.

Impact

  • Information Theft
  • Credential Theft
  • Antivirus Bypass

Indicators of Compromise

MD5

  • 985c6bfc24f5d4607865af8333611f0d
  • b2af3b332d92fc09b79c4bf85263fd22

SHA-256

  • c761c0aa331df2f68dcbe3e08f0f1ceda586a04c8ff79463cd44201777d6c80f
  • b9dd8dfdb9a3fd61b2acffe0018cdf99b02c97025ae0d41a7aac7c9d76647b58

SHA-1

  • 733ec0cd86c0e1e0e4ec0116fd11191f40c95025
  • cbb3c3a4b17ba2888cfd0b96f59a5bc454d4ef32

Remediation

  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.
  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
    • Blog
    • Threat Advisory
  • Company
    • About Us
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    • Contact
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