Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f7d84f8462d189d…

MALICIOUS

PDF

4.4 KB Created: 2015-06-03 17:02:04 +03:00 Authoring application: DOMPDF
MD5: 3634f5c9f509557c37b0c55fedc051ae SHA-1: f6684ef986d48ed54bf36124ac521471313108c1 SHA-256: 0f7d84f8462d189d071de340adb8012f799952cf47f7ffa44e0fbb30106e4224
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs that mimic PDF filenames, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded links are the primary indicators of malicious intent, likely serving as a lure to external, potentially compromised, websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5447

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://arquiteturaemarketing.com.br/index.php?2015/endurancelab.pdf&hjlcw=1&aspx=1275
    • http://dyrlaegecentret.dk/index.php?2015/typestitch.pdf&hjhle=1&aspx=1319
    • http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=339
    • http://dyrlaegecentret.dk/index.php?2015/typestitch.pdf&hjhle=1&aspx=1938
    • http://kash.info/index.php?2015/zmagic.pdf&eqhgc=1&aspx=1111
    • http://veranomusical.es/index.php?2015/booboodigital.pdf&ieycq=1&aspx=sitemap

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