Malicious PDF — malware analysis report

Static analysis result for SHA-256 28d421a638aafe60…

MALICIOUS

PDF

6.5 KB Created: 2015-06-04 18:28:36 +04:00 Authoring application: DOMPDF First seen: 2015-06-09
MD5: f7bedb85d6445bab6c26a1b921cffb2b SHA-1: d9a3bd8aaa31388cf164a8c8668826c9a976634c SHA-256: 28d421a638aafe607ad57609760fcac61d29a3cf8e52191fe2fadd4ace1095b3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains numerous embedded URLs related to binary options trading. The ML classifier flagged this PDF as malicious, and the presence of external URIs suggests a lure to a potentially malicious website. The document body reinforces this by containing text about trading options and listing several of the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5488

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://websolutions.sg/index.php?wiki/04/06/2015/radiozuid/binary+options+broker+review.pdf&kbwax=1&news=779 In PDF document text
    • http://fstp.ca/index.php?wiki/04/06/2015/bacania/binary+trading+app.pdf&yjryy=1&news=508In PDF document text
    • http://silchef.com/index.php?wiki/04/06/2015/techgadgetsin/binary+option+8+bullet.pdf&qbvag=1&news=471In PDF document text
    • http://kwant.pl/index.php?wiki/04/06/2015/portland/binary+options+500.pdf&hlvtt=1&news=2190In PDF document text
    • http://viafoliar.cl/index.php?wiki/04/06/2015/drustan/binary+trading+tips+and+tricks.pdf&ytnox=1&news=268In PDF document text
    • http://shreerealty.co.in/index.php?wiki/04/06/2015/juvelir/is+binary+options+worth+it.pdf&wzadu=1&news=148In 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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