Malicious PDF — malware analysis report

Static analysis result for SHA-256 84eaa93238d2451f…

MALICIOUS

PDF

6.6 KB Created: 2015-06-04 18:32:42 +04:00 Authoring application: DOMPDF First seen: 2015-06-09
MD5: 51868ec8a6874c69a2b5f661568fe288 SHA-1: 9f161d50f43a550b4c7c00d36eb167223591da32 SHA-256: 84eaa93238d2451f2846ee288a48d9b8eca3b3d7f567170e06fa817bfa2edd8f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs that point to external websites, identified by the 'PDF_SEO_PHP_GATEWAY_LINK_FARM' heuristic. The document body, though partially garbled, also contains these URLs and text related to binary options trading. This suggests the primary purpose of the PDF is to act as a link farm for SEO spam, directing users to potentially malicious or scam-related content.

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=1126 In PDF document text
    • http://mottoagency.sg/index.php?wiki/04/06/2015/qreator/binary+option+strategies+qi.pdf&awxxu=1&news=2629In PDF document text
    • http://studio89.fr/index.php?wiki/04/06/2015/simplepress/ubinary+broker+review.pdf&kfiny=2&news=1608In PDF document text
    • http://fstp.ca/index.php?wiki/04/06/2015/bacania/binary+trading+app.pdf&yjryy=1&news=2208In PDF document text
    • http://breezeinn.com.au/index.php?wiki/04/06/2015/guesthouse/markets+world+binary+review.pdf&ftzpd=1&news=1427In PDF document text
    • http://www.pumpskins.com/index.php?wiki/04/06/2015/yamidootest/binary+option+system.pdf&tqfod=1&news=723In 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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