Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d1f5802fc9716e…

MALICIOUS

PDF

12.4 KB Created: 2015-07-15 16:26:17 +04:00 Authoring application: DOMPDF
MD5: 53c88e25161dac2c865ae7adbfa801c9 SHA-1: f5a1b76b5c7b1e682c597c85ac8c6bcc66127e8f SHA-256: 68d1f5802fc9716eb1fc6edc74728cab3c491183059c7e348897353b1a5849f7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by an ML classifier as malicious and contains a large number of external links, suggesting it is part of an SEO spam or phishing campaign. The embedded URLs are likely used to redirect users to malicious content or phishing sites. No scripts were extracted, limiting further analysis of specific behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8883

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=1171.2&urwbo=2&pdf=1171
    • http://ehsaasmhs.org/index.php?article=1778.1&qcugi=1&pdf=1778
    • http://marche-espoir.org/index.php?article=577.6&xonvf=6&pdf=577
    • http://chavagnes.com/index.php?article=2067.2&urwbo=2&pdf=2067
    • http://power-team.cz/index.php?article=335.3&uwbuc=3&pdf=335
    • http://chavagnes.com/index.php?article=1563.2&urwbo=2&pdf=1563
    • http://aksoynet.nl/index.php?article=1183.2&cwiie=2&pdf=1183
    • http://gchrismanelectric.com/index.php?article=250.1&txuhv=1&pdf=250
    • http://smu12.com/index.php?article=1899.4&ezwhk=4&pdf=1899
    • http://chavagnes.com/index.php?article=1554.2&urwbo=2&pdf=1554
    • http://chavagnes.com/index.php?article=1199.2&urwbo=2&pdf=1199
    • http://chavagnes.com/index.php?article=1927.2&urwbo=2&pdf=1927
    • http://upkartfashion.com/index.php?article=434.1&gggrk=1&pdf=434
    • http://chavagnes.com/index.php?article=2318.2&urwbo=2&pdf=2318
    • http://anaprieto.com/index.php?article=680.2&yhxyj=2&pdf=680
    • http://chavagnes.com/index.php?article=1766.2&urwbo=2&pdf=1766
    • http://www.mantrabeautybar.ca/index.php?article=2011.1&rukbv=1&pdf=2011

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