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Rewterz Threat Alert – ServHelper Backdoor – Active IOCs
October 20, 2021
Rewterz and Cisco Celebrate Another Year of a Successful Partnership
October 20, 2021

Rewterz Threat Alert – FormBook Malware – Active IOCs

October 20, 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

MD5

  • 2109a0431e1e8fbce8007bc6dbdc8d2d
  • 73fe142254abec3aeaef375f0564d40a
  • 6688b944bbe2c16a001b55af8fae2b4f
  • c78d5e89ebecb4d88d3ab36bc47fd7ba
  • a57eae9a4b70129d94eae5f5bc5a2939
  • 0abc1f2ac325ab9baa7903f5a9e7d0cb

SHA-256

  • 520857c7a5bfaeebf0f39504ae85d32b7e153774e93cb2be486f9a5d35b76d05
  • 19428f9c431fb0f8d6fbd9ca194589bacf9d9d3e475717031373b71982bea2a5
  • fc9ba22e8b90dbfe7b8b4b8450f2a93227c949d57395f59a0cedd30c78f05697
  • 9b6b00b331ea48d5477fbd0ec6e168407dcec59c758eb797c9672d2f74dba12a
  • 07c7a41786056d743595613eb30cfe00645998237670b947f6884c20ad87c252
  • 58877fce8fc8226d8ed82e6db80af591acc24372286f86518908b934ddc65e57

SHA-1

  • f85d1cfa01ca893063af01510115bc279da84c2a
  • 8529d972dd89f69eb2dc2a3ba9207e67626de9b9
  • f6e49b9afdf26663c8f2819cdf02ea7c138c3bb3
  • 476733e0eb88a9dce2a65200c23ddd0d5f2b3496
  • 52409b7efe9e8f224c7bb7197fb6168ce9e0cd58
  • d15ff8fc05ca6618fa17133190d3c0d0736922fd

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
    • Careers
    • Contact
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