Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a9aabedcbcfb6b3…

MALICIOUS

PDF

12.5 KB Created: 2015-07-15 14:39:33 +04:00 Authoring application: DOMPDF
MD5: c697886d816b0e35f5b41b982fc7d8e0 SHA-1: ae6d8ff04721a3052d23e0f8e3c7b55db4e1931c SHA-256: 5a9aabedcbcfb6b3a15e33c5a8476b00aedace0330352a48b26a6f4fd7a9dfea
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs disguised as content related to binary options trading. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external link farm, suggesting the primary purpose is to redirect users to potentially malicious websites. No scripts were extracted, but the embedded URLs are the main indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8835

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://photo-file.ru/index.php?article=211.1&wehsa=1&pdf=211
    • http://bmwt.pt/index.php?article=794.2&qvacx=2&pdf=794
    • http://vs-media.nl/index.php?article=772.1&nxjas=1&pdf=772
    • http://photo-file.ru/index.php?article=384.1&wehsa=1&pdf=384
    • http://www.mantrabeautybar.ca/index.php?article=114.1&rukbv=1&pdf=114
    • http://photo-file.ru/index.php?article=2078.1&wehsa=1&pdf=2078
    • http://ura-sandoz.com/index.php?article=1272.1&nydkb=1&pdf=1272
    • http://konserborsasi.com/index.php?article=978.1&ntrdf=1&pdf=978
    • http://www.ecoservice.co/index.php?article=899.1&egezd=1&pdf=899
    • http://photo-file.ru/index.php?article=2048.1&wehsa=1&pdf=2048
    • http://photo-file.ru/index.php?article=233.1&wehsa=1&pdf=233
    • http://photo-file.ru/index.php?article=2466.1&wehsa=1&pdf=2466
    • http://ve-klubber.dk/index.php?article=2468.1&jzwgf=1&pdf=2468
    • http://photo-file.ru/index.php?article=1471.1&wehsa=1&pdf=1471
    • http://fotosalon-zoom.ru/index.php?article=1065.4&sufyu=4&pdf=1065
    • http://photo-file.ru/index.php?article=2382.1&wehsa=1&pdf=2382
    • http://www.otomatmarket.com.tr/index.php?article=634.1&vbepn=1&pdf=634

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