Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3816c5f5fdbfab…

MALICIOUS

PDF

6.6 KB Created: 2015-06-04 18:31:17 +04:00 Authoring application: DOMPDF First seen: 2015-06-23
MD5: b1cb5a4eb61b546646f099ec3d8f79f8 SHA-1: bcf6c3a1f22ff976956aebd6c17832940d9d1763 SHA-256: fd3816c5f5fdbfabbcc77fd4598474ebab3429247bb9c7b104549d1f8d677956
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs pointing to websites discussing binary options trading. The ML classifier flagged this PDF as malicious, and the presence of these links suggests a phishing or scam attempt. No scripts were extracted from this sample, limiting further analysis of its behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5034

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://silchef.com/index.php?wiki/04/06/2015/techgadgetsin/binary+option+8+bullet.pdf&qbvag=1&news=1466 In PDF document text
    • http://www.masqueplacer.es/index.php?wiki/04/06/2015/bepgasdanang/binary+option+broker+in+uk.pdf&yhlgy=1&news=760In PDF document text
    • http://www.fitbodyelite.com/index.php?wiki/04/06/2015/readersdigest/example+of+binary+option.pdf&ivrjx=1&news=200In PDF document text
    • http://timfelsky.com/index.php?wiki/04/06/2015/crispwoo/binary+option+model.pdf&fxdgz=1&news=1451In PDF document text
    • http://miharu-k.info/index.php?wiki/04/06/2015/dancan/binary+trader+software.pdf&nfhct=1&news=31In PDF document text
    • http://www.orthorehabofmetairie.com/index.php?wiki/04/06/2015/crytix/binary+options+cheat.pdf&hjvka=2&news=1937In 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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