PDF static analysis report

Static analysis result for SHA-256 cc9b41ffcaa279e9…

SUSPICIOUS

PDF

5.2 KB Created: 2015-06-02 16:44:42 Authoring application: HTML2FPDF >> http://html2fpdf.sf.net (via FPDF 1.52) First seen: 2015-07-16
MD5: 2da3727d81f5a710a487e104709cdbe1 SHA-1: 119cd7dcbfef7720902a9a888e3b68c01f1276e1 SHA-256: cc9b41ffcaa279e981a4f4eb7030b3e8a7dbec8dcd20f0629a85bc8f13decda4
42 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and multiple external URIs. The embedded JavaScript is likely used to obfuscate malicious links or perform other malicious actions. The document body contains numerous URLs related to pharmaceuticals, suggesting a scam or phishing attempt. The presence of embedded JS and external URIs indicates an attempt to redirect the user to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0137

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/zithromax-syphilis.pdf PDF link annotation
    • http://www.samfab.com/Scripts/js/pdf.php/can-prednisone-cause-muscle-spasms.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/zithromax-order.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/levitra-20-mg-siparis.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/can-prednisone-cause-skin-rash.pdfIn PDF document text
    • http://www.samfab.com/Scripts/js/pdf.php/synthroid-1-mcg.pdfIn PDF document text
    • http://lifecoachtoloseweight.com/how-to-administer-tjoiumai-lasix/In PDF document text
    • http://html2fpdf.sf.net)/CreationDateIn PDF document text
    • http://html2fpdf.sf.netIn PDF document text
🗂 Part of campaign: sf.net 56 samples

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