Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9aea9b35565e7d…

MALICIOUS

PDF

6.9 KB Created: 2015-06-04 18:32:04 +04:00 Authoring application: DOMPDF First seen: 2015-06-30
MD5: acaf3af359a21e14e94a2811158dc1ed SHA-1: 61e70ea9bbc19b2d7c59c2254539e2db87f14880 SHA-256: da9aea9b35565e7d0b782b3dd3dc2d91bd46e7fbe0dfd5f13f0d2c8a962a1158
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs, all related to binary options trading. The ML classifier flagged this PDF as malicious, and the document body text reinforces the theme of financial trading. The primary attack pattern involves luring the user to click on these external links, which are likely to lead to phishing or scam websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6631

Heuristics 2

  • 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 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://timfelsky.com/index.php?wiki/04/06/2015/crispwoo/binary+option+model.pdf&fxdgz=1&news=1962 In PDF document text
    • http://4smokers.dk/index.php?wiki/04/06/2015/funnypictures/binaryoptionsdaily.com+forum.pdf&fdzwn=1&news=1393In PDF document text
    • http://idsintdecontamination.com/index.php?wiki/04/06/2015/geveze/binary+stock+video.pdf&jcjyi=1&news=352In PDF document text
    • http://johneagerroofingmaintenanceandrepair.com/index.php?wiki/04/06/2015/newline/binary+uk+reviews.pdf&zcloc=1&news=1969In PDF document text
    • http://server-minecraft.pl/index.php?wiki/04/06/2015/funlandia/binary+trading+etrade.pdf&glonz=1&news=891In PDF document text
    • http://www.infinitywp.it/index.php?wiki/04/06/2015/turnout/binary+brokers+canada.pdf&cfaqc=1&news=569In PDF document text
    • http://www.supermaraton.eu/index.php?wiki/04/06/2015/housepop/binaryoptionstradingguide.com.pdf&owutp=1&news=sitemapIn PDF document text

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