Malicious PDF — malware analysis report

Static analysis result for SHA-256 c496a5e42dff2df5…

MALICIOUS

PDF

75.6 KB Created: 2021-01-03 04:32:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 848304164b7cc932d2fd75f552d6e3ec SHA-1: 6e6ec71dbb6221edd765214db11339b20e0a7826 SHA-256: c496a5e42dff2df5f96572f8b5fcaf0f6624e71812015bcf44360e270df85a1c
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic for phishing campaigns. It contains a single external URI pointing to 'trafffe.ru', which is likely a malicious domain used to host phishing content. The ClamAV detection further supports its malicious nature, classifying it as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier clean score 0.1730

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 75 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://trafffe.ru/aws?utm_term=amyotrophic+lateral+sclerosis+european+guidelines

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