Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0267cf8d2acf0e…

MALICIOUS

PDF

6.6 KB Created: 2015-06-04 18:29:02 +04:00 Authoring application: DOMPDF First seen: 2015-06-09
MD5: 4cf8df80699e91d52a52de64f8a3dc07 SHA-1: 66f549dfaca1984fcb4d56fd94cc44cc4a69789d SHA-256: bd0267cf8d2acf0ecfb3ae6df7b5341d5b974f74d05ef2daf1bf9ad08c0e9fc8
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs related to binary trading and stock options. The ML classifier also flagged this PDF as malicious. The document body, though truncated, also repeats these URLs, suggesting the primary intent is to direct the user to these external sites. 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://fstp.ca/index.php?wiki/04/06/2015/bacania/binary+trading+app.pdf&yjryy=1&news=1332 In PDF document text
    • http://www.siot.cz/index.php?wiki/04/06/2015/kampus/cfd+binary+options.pdf&pjlui=1&news=2470In PDF document text
    • http://4smokers.dk/index.php?wiki/04/06/2015/funnypictures/binaryoptionsdaily.com+forum.pdf&fdzwn=1&news=2408In PDF document text
    • http://www.sasopapp.com/index.php?wiki/04/06/2015/gidonline/binary+options+website.pdf&nflvq=1&news=1956In PDF document text
    • http://www.gopelion.com/index.php?wiki/04/06/2015/mataam/cfd+binary+options.pdf&iiktw=2&news=2147In PDF document text
    • http://caskaeliteaudio.com.br/index.php?wiki/04/06/2015/pandrade/binary+options+formula.pdf&qdvaj=1&news=2640In 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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