Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd63613b06b24040…

MALICIOUS

PDF

6.6 KB Created: 2015-06-04 18:28:56 +04:00 Authoring application: DOMPDF First seen: 2015-06-09
MD5: fc10e7080c4a9848321bd49b6e28d1c2 SHA-1: 26c10be285e02b46ff83750b48ca2e0591b1919e SHA-256: bd63613b06b240407ae1c089dea27670f39733698c98287237f46f58ccf707e7
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document contains numerous embedded URLs that are all related to binary options trading. The ML classifier flagged this PDF as malicious, and the presence of these external links suggests a phishing or scam attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5034

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.
  • 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://4smokers.dk/index.php?wiki/04/06/2015/funnypictures/binaryoptionsdaily.com+forum.pdf&fdzwn=1&news=1137 PDF link annotation
    • http://darshopticians.com/index.php?wiki/04/06/2015/busscher/example+of+binary+options.pdf&arzur=1&news=8In PDF document text
    • http://www.alphapluss.se/index.php?wiki/04/06/2015/mypage/binary+option+tutorial.pdf&elyol=1&news=2898In PDF document text
    • http://breezeinn.com.au/index.php?wiki/04/06/2015/guesthouse/markets+world+binary+review.pdf&ftzpd=1&news=304In PDF document text
    • http://canyoncoal.com/index.php?wiki/04/06/2015/serendibleisure/binary+option+application.pdf&tteow=1&news=284In PDF document text
    • http://www.yakiscupcakes.com/index.php?wiki/04/06/2015/goldenwestcafe/binary+option+org.pdf&woeax=1&news=85In 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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