Malicious PDF — malware analysis report

Static analysis result for SHA-256 779ae6fbcd5dfca8…

MALICIOUS

PDF

35.9 KB Created: 2021-09-08 01:23:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 4976ecd14edc2c946e9470fc9be387c6 SHA-1: 4ebcae47747be2cced5edea0d6f5771ab11c2fbc SHA-256: 779ae6fbcd5dfca8eed7c94f9584987a8484774697c78738025ba1debcdbf0e5
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing attacks, designed to trick users into interacting with a malicious link. The presence of embedded URLs and the ClamAV detection strongly suggest malicious intent, likely to download a secondary payload or redirect to a phishing page. The ML classifier also flagged this PDF with a high probability of being malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8228

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 35 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://fundacjahfg.pl/upload/file/8915363555.pdf In PDF document text
    • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c16ab666a---taruzudiwinugamotuzevugan.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=schneider+electric+catalogo+2018+pdfPDF link annotation

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