Malicious PDF — malware analysis report

Static analysis result for SHA-256 21c85092b133089a…

MALICIOUS

PDF

6.7 KB Created: 2015-06-04 18:32:08 +04:00 Authoring application: DOMPDF First seen: 2015-06-09
MD5: cd73d96820f51f8069b02829f51c831f SHA-1: 93d8bfed56aac321e65ef6fee91637b75c380c9e SHA-256: 21c85092b133089ada74e1c41fd275fdc4dcf4de46b8458ec4cf16b5668fba75
62 Risk Score

Malware Insights

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

The PDF document contains numerous links related to binary options trading, suggesting a lure for financial scams or phishing. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, limiting the analysis of its direct execution behavior. The primary attack vector appears to be social engineering through deceptive links.

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://www.bluematters.be/index.php?wiki/04/06/2015/celebnetworth/binary+options+u+s+based.pdf&jjvup=1&news=2207 In PDF document text
    • http://kayafestival.com/index.php?wiki/04/06/2015/gossip/no+1+binary+option+broker.pdf&ddcfy=1&news=1959In PDF document text
    • http://emptymindsradio.com/index.php?wiki/04/06/2015/travelersdaily/binary+option+data.pdf&kpqoo=2&news=1871In PDF document text
    • http://emergustechnologies.com/index.php?wiki/04/06/2015/magazeen/binary+code+system+reviews.pdf&niplb=1&news=1370In PDF document text
    • http://medicareplansusa.com/index.php?wiki/04/06/2015/enetspark/binary+options+20+minimum+deposit.pdf&chnqc=1&news=723In PDF document text
    • http://manny-group.com.mx/index.php?wiki/04/06/2015/framwork/binary+options+explanation.pdf&ykipk=1&news=2427In 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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