Malicious PDF — malware analysis report

Static analysis result for SHA-256 6489942e2044df3c…

MALICIOUS

PDF

6.6 KB Created: 2015-06-08 01:29:10 +04:00 Authoring application: DOMPDF First seen: 2015-06-23
MD5: 0cdaead6ce213601a62eb9569ecf2332 SHA-1: 77a2fde2444be271441f520573226eb0e2d13e0f SHA-256: 6489942e2044df3cf6186734d02960b182ad56e246f57d63c8052ab07a86ddea
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to SEO-spam sites, identified by the PDF_SEO_PHP_GATEWAY_LINK_FARM heuristic. The document body, though truncated, also contains these URLs and text related to financial trading, suggesting a lure for financial scams. No scripts were extracted from this sample.

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://jackreev.es/index.php?sizinsite/2015/wiki/binary+options+on+stock.pdf&zgzsy=2&news=711 In PDF document text
    • http://skladaniekomputera.pl/index.php?starkinsider/2015/wiki/is+binary+options+gambling.pdf&baynt=1&news=5525In PDF document text
    • http://www.mastronardihogar.com.ar/index.php?gadgetine/2015/wiki/binary+option+illegal.pdf&runhe=1&news=5064In PDF document text
    • http://pinamar.com.ar/index.php?receitasdept/2015/wiki/binary+options+macd.pdf&wqpfa=3&news=5554In PDF document text
    • http://essenceoftranquility.net/index.php?coolazon/2015/wiki/binary+trading+money+management.pdf&cznkv=1&news=1961In PDF document text
    • http://pizzaioli.com/index.php?pcsite/2015/wiki/my+binary+code+review+scam.pdf&bwfyd=3&news=5712In PDF document text
    • http://www.sehgal.co.in/index.php?campusfocus/2015/wiki/binary+trading+best+site.pdf&yyjsx=2&news=sitemapIn PDF document text

Related samples 8

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