Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a0ea2e51ae79d41…

MALICIOUS

PDF

6.6 KB Created: 2015-06-04 18:30:18 +04:00 Authoring application: DOMPDF First seen: 2015-06-23
MD5: 8bbcd87c5d1a588aa4231533df85c75d SHA-1: 503b5639df630ed387286a0e1ed143182f952466 SHA-256: 6a0ea2e51ae79d418b767b1fc2cbd5cc89a10a9a9e812df2a04fb39494bd4571
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to various domains, all seemingly related to binary options trading. The heuristic 'PDF_SEO_PHP_GATEWAY_LINK_FARM' indicates this is likely an SEO spam technique to drive traffic. While no scripts were explicitly extracted, the ML classifier flagged the PDF as malicious, suggesting a more complex underlying threat beyond simple link farming. The document body also contains text related to trading strategies, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5488

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://nicholasburgess.com/index.php?wiki/04/06/2015/youraveragego/1+minute+binary+option+strategy.pdf&rospy=2&news=2660 In PDF document text
    • http://www.maler-moelich.de/index.php?wiki/04/06/2015/onecommunity/binary+options+trading+signals+youtube.pdf&fduga=1&news=686In PDF document text
    • http://wpc42.org/index.php?wiki/04/06/2015/bluemist/binary+options+regulated+in+uk.pdf&xcobo=1&news=544In PDF document text
    • http://idsintdecontamination.com/index.php?wiki/04/06/2015/geveze/binary+stock+video.pdf&jcjyi=1&news=464In PDF document text
    • http://www.narcisoevenere.com/index.php?wiki/04/06/2015/supportpress/synthetic+binary+option.pdf&lszpa=1&news=2915In PDF document text
    • http://www.orthorehabofmetairie.com/index.php?wiki/04/06/2015/crytix/binary+options+cheat.pdf&hjvka=2&news=524In 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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