Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8cdf0f42089374d…

MALICIOUS

PDF

75.0 KB Created: 2021-03-11 06:36:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0e6097af89fd47e39e9b77754e3db34 SHA-1: 88691cbc9563e11fe1cc1afdec74a1edec695183 SHA-256: c8cdf0f42089374d694c696113f3b71107fa4282729535291ffaa378b9337601
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and a machine learning classifier. It employs a common phishing tactic by presenting a full-page image, likely a screenshot, designed to trick users into interacting with an embedded link. This link, 'https://baarspo.ru/award?keyword=esurientes+magnificat+bach+pdf', is the primary indicator of compromise, leading to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6915

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 74 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://baarspo.ru/award?keyword=esurientes+magnificat+bach+pdf

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