Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f6dc1cdcfce0ade…

MALICIOUS

PDF

35.6 KB Created: 2020-12-02 18:06:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 679ef40df205de6b81d66fd5f355ce8f SHA-1: 68fce8f947cf7ba5995274aa66c9132e26bd64a5 SHA-256: 1f6dc1cdcfce0ade9c8f17e08d39bd62c671068f1f55c39f9b8bdd869001b61a
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF was identified as malicious by multiple heuristics, including a critical finding of links to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'Infant shoe size guide by age'. The primary attack vector appears to be a user-triggered redirection via a link embedded within the PDF, leading to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7022

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/aws?utm_term=infant+shoe+size+guide+by+age

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