Malicious PDF — malware analysis report

Static analysis result for SHA-256 83c5cbf76786fa2d…

MALICIOUS

PDF

35.3 KB Created: 2021-06-17 05:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 17807951d2779705a50398803a2c0ada SHA-1: a041d10cbbfb0ba11e53bfb647332ec04a3186d2 SHA-256: 83c5cbf76786fa2d559e32ed3342c4bd25e875178e363f953379614eb286fb64
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and a click-outward action, typical of social engineering tactics. It contains a single embedded URL that directs to a suspicious domain, likely serving as the next stage of the attack. The ML classifier and ClamAV detection further support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8558

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://drafthe.ru/uplcv?utm_term=cm+bharat+movie+hd PDF link annotation

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