PDF static analysis report

Static analysis result for SHA-256 3c8de5f792dac9cd…

SUSPICIOUS

PDF

6.5 KB Created: 2015-06-04 21:41:28 Authoring application: HTML2FPDF >> http://html2fpdf.sf.net (via FPDF 1.52) First seen: 2015-07-16
MD5: f014b342937d1aec7a736be9ce793151 SHA-1: 8c8b03723e5040b13aa955ca51d91e177f1c6687 SHA-256: 3c8de5f792dac9cd817a4611b2d045bb58b68b6bc343c92f0b7004a0f2191608
42 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript and multiple external URIs, many of which are related to pharmaceutical sales. The document body text also contains similar pharmaceutical-related keywords, suggesting a lure to illicit online pharmacies. The embedded JavaScript and external URIs indicate an attempt to redirect the user to potentially malicious websites. The primary attack pattern involves social engineering through deceptive content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0096

Heuristics 4

  • 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.
  • 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 http://www.samfab.com/Scripts/js/pdf.php/trial-cialis.pdf PDF link annotation
    • http://www.samfab.com/Scripts/js/pdf.php/where-can-i-get-nolvadex.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/how-to-buy-viagra-safely.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/doxycycline-costco.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/overseas-prescription-drugs-online.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/vega-100-sildenafil-citrate.pdfIn PDF document text
    • http://www.powereagleusa.com/girl-fhyiunak-viagra/In PDF document text
    • http://phudararesort.com/amoxil-500mg-vnmoiuvefi-capsule/Referenced by PDF JavaScript
    • http://html2fpdf.sf.net)/CreationDateIn PDF document text
    • http://html2fpdf.sf.netIn PDF document text
🗂 Part of campaign: sf.net 56 samples

Related samples 8

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