PDF static analysis report

Static analysis result for SHA-256 dfa26d2c228289ad…

SUSPICIOUS

PDF

4.7 KB Created: 2015-06-06 06:31:52 Authoring application: HTML2FPDF >> http://html2fpdf.sf.net (via FPDF 1.52) First seen: 2015-07-16
MD5: c60caf44dc3871f56fa82429a9a6116d SHA-1: 1168aa20ec0b549a79535dac16afdc6aea854d59 SHA-256: dfa26d2c228289adfd4b316e65b2994e67dd985aa7dd6cd7add5fc29f5fe587c
40 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and multiple external URIs pointing to suspicious domains. The embedded JavaScript is likely intended to exploit vulnerabilities or redirect the user to malicious sites. The URLs extracted from the document body and heuristics suggest a phishing or malware distribution attempt, possibly related to pharmaceutical scams given the URL paths.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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.ironmanthrows.com/buttons/button/pdf.php/propecia-help-forum.pdf In PDF document text
    • http://www.plushaut.net/fckeditor/editor/js/pdf.php/generic-cialis-us-pharmacy.pdfIn PDF document text
    • http://www.plushaut.net/fckeditor/editor/js/pdf.php/kamagra-tablets-price.pdfIn PDF document text
    • http://www.plushaut.net/fckeditor/editor/js/pdf.php/viagra-contraindications.pdfIn PDF document text
    • http://www.plushaut.net/fckeditor/editor/js/pdf.php/symptoms-too-much-synthroid.pdfIn 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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