Malicious PDF — malware analysis report

Static analysis result for SHA-256 7af33bb77a9aca27…

MALICIOUS

PDF

37.3 KB Created: 2021-09-01 08:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 0354951d7bc470186b9efb16565dafa7 SHA-1: 0d336cc668f1ce8b6b6551768716ae95bebac939 SHA-256: 7af33bb77a9aca274af2f50fc187ebecbaca055b475fb6505b6a49918c4030fe
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as a phishing lure due to its structure, containing an image with a hidden action trigger. ClamAV also detected it as a phishing trojan. The embedded URL, although confirmed benign, was likely intended to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3316

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 37 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 https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=anaphylaxis+nursing+care PDF link annotation

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