Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6f2d069846ec62…

MALICIOUS

PDF

36.6 KB Created: 2021-09-06 16:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 2fb6f5d214074070c9b17d361cb40642 SHA-1: 4668633e2219d9cc2454e660c1faf3df973dca68 SHA-256: bf6f2d069846ec62e82e5803b4657eaff507667fffbc4f1b99e9bdfefa9cd66f
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing campaigns, designed to trick users into interacting with embedded links. ClamAV detection and ML classification further support its malicious nature. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's part of a chain designed to deliver a malicious payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7130

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 36 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ildongwire.com/userfiles/file/tovirugeb.pdf In PDF document text
    • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/1205523bbc8e7433ee8d2a23f610ba60/berilame.pdfIn PDF document text
    • https://alternatifhirdavat.com/upload/ckfinder/files/vazapevi.pdfIn PDF document text
    • http://www.edgartownschool.org/uploads/files/wexinufenowivef.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f5f6In PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=ley+de+signos+ejercicios+resueltos+pdfPDF link annotation

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