Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4ea6c0e990ae822…

MALICIOUS

PDF

35.9 KB Created: 2021-09-29 04:18:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 5fb20faf4dadafefeb25fc16d255752e SHA-1: 577f989bb5278c44f3e631e722fe24ad9b60dfcb SHA-256: c4ea6c0e990ae8226ff5a1afaadce3e32c5e20784772ae32af2c9dac850bbdeb
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as a phishing lure due to its structure, containing an image designed to trick users into clicking a link. The embedded URLs point to external PDF files, suggesting a multi-stage phishing attack. While no scripts were directly extracted, the PDF structure and heuristic firings strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7249

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://fgsconsulta.com.br/ckfinder/uploads/userfiles/files/pifabe.pdf In PDF document text
    • http://tetobox-budapest.hu/uploads/files/kamewilematewovexox.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=android+auto+screen+rotatePDF link annotation

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