Malicious PDF — malware analysis report

Static analysis result for SHA-256 475038692d62a42a…

MALICIOUS

PDF

12.2 KB Created: 2015-07-15 16:24:20 +04:00 Authoring application: DOMPDF
MD5: 08f4e90f74a9aca8c13a5ce27d1411c6 SHA-1: 5eb7ada40d0c4b7474b9351ec983128fb14be535 SHA-256: 475038692d62a42a2cd1f0396a0c4a7646a0716fb3b48e585da2eefbc5068f97
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains a significant number of external links, characteristic of a link farm. The embedded URLs are likely used to direct users to malicious websites or for SEO poisoning. No scripts were extracted, and the document body contained mostly obfuscated or irrelevant text.

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=1747.2&urwbo=2&pdf=1747
    • http://lektoring.eu/index.php?article=1953.1&zsaop=1&pdf=1953
    • http://gonencelik.com.tr/index.php?article=2231.1&aosqe=1&pdf=2231
    • http://chavagnes.com/index.php?article=1916.2&urwbo=2&pdf=1916
    • http://escale-bien-etre-37.com/index.php?article=1210.2&nalxy=2&pdf=1210
    • http://chavagnes.com/index.php?article=716.2&urwbo=2&pdf=716
    • http://gradespay.com/index.php?article=316.1&cibeh=1&pdf=316
    • http://sennexdesign.com/index.php?article=1230.1&nonzs=1&pdf=1230
    • http://fotosalon-zoom.ru/index.php?article=863.4&sufyu=4&pdf=863
    • http://chavagnes.com/index.php?article=1905.2&urwbo=2&pdf=1905
    • http://chavagnes.com/index.php?article=1854.2&urwbo=2&pdf=1854
    • http://chavagnes.com/index.php?article=513.2&urwbo=2&pdf=513
    • http://ceotisnord.com/index.php?article=97.2&vcbzf=2&pdf=97
    • http://chavagnes.com/index.php?article=1332.2&urwbo=2&pdf=1332
    • http://www.mantrabeautybar.ca/index.php?article=14.1&rukbv=1&pdf=14
    • http://chavagnes.com/index.php?article=322.2&urwbo=2&pdf=322
    • http://geekseals.com/index.php?article=1070.1&kcbpn=1&pdf=1070

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