Malicious PDF — malware analysis report

Static analysis result for SHA-256 7876d6931e54fb41…

MALICIOUS

PDF

6.5 KB Created: 2015-06-04 18:32:25 +04:00 Authoring application: DOMPDF First seen: 2015-06-23
MD5: 590cda38d00666402df4208a1c403976 SHA-1: acbf4a939d41055e89cb837c939c824f452051cb SHA-256: 7876d6931e54fb41790ce26276c6406cefc96c85f029b36fe6bc24fcc946e62d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that point to external websites, primarily related to binary options trading. The heuristic 'PDF_SEO_PHP_GATEWAY_LINK_FARM' indicates this is likely an SEO spam or phishing attempt to drive traffic to these sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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://herbalshop.com.ua/index.php?wiki/04/06/2015/ephototheme/binary+option+in+malaysia.pdf&cahug=1&news=524 In PDF document text
    • http://darerteqa.com/index.php?wiki/04/06/2015/plineks/binary+brokers+sites.pdf&ougyk=1&news=1534In PDF document text
    • http://www.fitbodyelite.com/index.php?wiki/04/06/2015/readersdigest/example+of+binary+option.pdf&ivrjx=1&news=2751In PDF document text
    • http://www.vaughantelecom.ca/index.php?wiki/04/06/2015/designmodo/binary+option+cheats.pdf&zeles=1&news=1519In PDF document text
    • http://www.tubeconect.de/index.php?wiki/04/06/2015/wellness/binary+options+millionaires.pdf&fruxa=1&news=1455In PDF document text
    • http://rafcar24.pl/index.php?wiki/04/06/2015/letizia/binary+option+usa.pdf&fnewq=1&news=820In PDF document text
    • http://www.supermaraton.eu/index.php?wiki/04/06/2015/housepop/binaryoptionstradingguide.com.pdf&owutp=1&news=sitemapIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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