Malicious PDF — malware analysis report

Static analysis result for SHA-256 6683afc70c4eb2c5…

MALICIOUS

PDF

12.0 KB Created: 2015-07-15 16:24:48 +04:00 Authoring application: DOMPDF
MD5: 3df13d206237539c9774c0327927f53a SHA-1: 5dd05d87d7854448a87f5dbc82e217a11c94d340 SHA-256: 6683afc70c4eb2c535f7c5b72aee454caf5380a878c14c966b0a149f736c558d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution tactic. The ML classifier also flagged the PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics indicate a likely attempt to redirect users to malicious or SEO-manipulated content, possibly as part of a phishing or spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8959

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://chavagnes.com/index.php?article=1913.2&urwbo=2&pdf=1913
    • http://les-zephyrs.com/index.php?article=1842.2&ylevy=2&pdf=1842
    • http://amicosmeceutici.it/index.php?article=830.1&replv=1&pdf=830
    • http://chavagnes.com/index.php?article=2169.2&urwbo=2&pdf=2169
    • http://www.cauzionealbogestoriambientali.it/index.php?article=1033.1&urrpv=1&pdf=1033
    • http://chavagnes.com/index.php?article=1145.2&urwbo=2&pdf=1145
    • http://www.robinprime.com/index.php?article=901.1&bedxv=1&pdf=901
    • http://kardiola.pl/index.php?article=2158.1&xyjeh=1&pdf=2158
    • http://irelia-wein.de/index.php?article=1708.1&twakj=1&pdf=1708
    • http://chavagnes.com/index.php?article=43.2&urwbo=2&pdf=43
    • http://chavagnes.com/index.php?article=1039.2&urwbo=2&pdf=1039
    • http://chavagnes.com/index.php?article=1188.2&urwbo=2&pdf=1188
    • http://www.mantrabeautybar.ca/index.php?article=902.1&rukbv=1&pdf=902
    • http://chavagnes.com/index.php?article=1717.2&urwbo=2&pdf=1717
    • http://www.faceausoleil.com/index.php?article=2236.2&ipbvv=2&pdf=2236
    • http://chavagnes.com/index.php?article=2382.2&urwbo=2&pdf=2382
    • http://kemerimalati.com/index.php?article=1416.3&rlrsj=3&pdf=1416

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