Malicious PDF — malware analysis report

Static analysis result for SHA-256 992251bd8a5c3bc4…

MALICIOUS

PDF

6.6 KB Created: 2015-06-04 18:29:03 +04:00 Authoring application: DOMPDF First seen: 2015-06-30
MD5: 5ab03631c6018a915b5a86ca4cc73e0a SHA-1: f658986ff6583d31c8e0f606f670c7f1ff261434 SHA-256: 992251bd8a5c3bc489254e866e88e814914e2f08bf5fcae291f394cee0a60264
62 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs that are all related to binary trading software and systems. The ML classifier flagged this PDF as malicious, and the presence of these links suggests a lure for users to visit potentially malicious or scam websites. 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://miharu-k.info/index.php?wiki/04/06/2015/dancan/binary+trader+software.pdf&nfhct=1&news=932 In PDF document text
    • http://www.elvensenatacao.com/index.php?wiki/04/06/2015/enormoz/binary+option+system+96.pdf&uxipl=1&news=1116In PDF document text
    • http://www2.macsa.cat/index.php?wiki/04/06/2015/zettino/binary+trades+ig+index.pdf&trbfw=1&news=2237In PDF document text
    • http://laminatecountertopshouston.com/index.php?wiki/04/06/2015/bisnis/u7+binary+options.pdf&yqofh=1&news=1430In PDF document text
    • http://irwaa.com/index.php?wiki/04/06/2015/filmrezensionen/auto+binary+code+review.pdf&hcueh=2&news=449In PDF document text
    • http://www.siot.cz/index.php?wiki/04/06/2015/kampus/cfd+binary+options.pdf&pjlui=1&news=261In 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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