PDF static analysis report

Static analysis result for SHA-256 e5c26dc3b76a828f…

SUSPICIOUS

PDF

4.9 KB Created: 2015-06-02 16:46:48 Authoring application: HTML2FPDF >> http://html2fpdf.sf.net (via FPDF 1.52) First seen: 2015-07-16
MD5: 9bac26a5a4906f76763a1061f09a6b79 SHA-1: 02a2f4258c66a2e6d61ac1f9ec1e99e0949b2d81 SHA-256: e5c26dc3b76a828fe4df36a8be725627e16db854fc95f4c24a92ed9ccf7f8a70
40 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript and numerous URLs that point to pharmaceutical spam websites. The document body also contains text related to various medications, reinforcing the spamming nature of the content. The primary goal appears to be directing users to these external sites, likely for SEO spam or to facilitate illicit sales.

Machine Learning

  • Nyx PDF Classifier clean score 0.0108

Heuristics 3

  • PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARM
    PDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://www.meghniwas.com/oldsite/ESW/u.php/buying-accutane-online-reviews/ Referenced by PDF JavaScript
    • http://www.samfab.com/Scripts/js/pdf.php/cialis-dosage-side-effects.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/levitra-20mg-8-stuck-preisvergleich.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/cialis-generika-kaufen-schweiz.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/priligy-dapoxetine-uk.pdfIn PDF document text
    • http://html2fpdf.sf.net)/CreationDateIn PDF document text
    • http://html2fpdf.sf.netIn PDF document text
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