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Rewterz Threat Alert – LokiBot – Active IOCs
August 14, 2021
Rewterz Threat Alert – Vidar Malware – Active IOCs
August 16, 2021

Rewterz Threat Alert – FormBook Malware – Active IOCs

August 14, 2021

Severity

Medium

Analysis Summary

FormBook is an information-stealer malware that has been active since 2016. The info-stealer malware’s capabilities include stealing credentials, capturing screenshots of victim’s desktop, monitoring clipboard, keystroke logging, clearing browser cookies, downloading and executing files, uploading and removing bots, launching commands via ShellExecute, downloading and unpacking ZIP archive, rebooting and shutting down the system. The attackers behind these email campaigns used a variety of distribution techniques to deliver the FormBook info-stealer, including PDFs, Office Documents, ZIP, RAR, etc. Some of these files are related to quotation requests.

Impact

  • Credential theft
  • Keystroke logging
  • Data Theft

Indicators of Compromise

Filename

  • rock3245[.]exe
  • ManifestBuild[.]exe
  • SurrogateK[.]exe

MD5

  • 98b7b0e6a8b0364de5fe1ba86b7c6bfd
  • ca78d54d548798fcf44988d3a89433fd
  • ef69c1b31ab08db5eec628aedd31ffd2
  • 9b316c1286cf6a10bf2447c128a76b46

SHA-256

  • c74a1ee1bb642221d811a5c617c175c09bca2cf5d6937f7981b9825eab5ef127
  • d12401aff6e577ad268923a0310d09931870ad0f5c557245376ca0487e4be96d
  • 259e3b91615c56477ea088113187b3d4699ccc3b32b0ae31c5ea49e895d67366
  • 855dd7cf56397cb61245d06f6ed38576c71826737101275f66167986e602036f

SHA-1

  • 762bb698218c43e1aa722cb518e542184d439093
  • de519e152e3274523c23d58303f049509be2484e
  • 13edc892f792e1460d26dc4fc329d9f6978788ca
  • 38940f6ab390ec2006693883bf5585a7ec38c0c6

Remediation

  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.
  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
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      • Red Team Assessment
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      • Social Engineering
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    • 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
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    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
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      • 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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