Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cad2a0c304b18af…

MALICIOUS

PDF

11.5 KB Created: 2015-07-15 16:27:44 +04:00 Authoring application: DOMPDF
MD5: 74c017c88a5664652ffa30a3144d5ffc SHA-1: eebcca0e65f6460e26f756156bfd068da2904aa2 SHA-256: 0cad2a0c304b18afd3b0320e25940b945517fb76b7046d5a09876392ce20e4e3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These links are likely intended to manipulate search engine rankings or redirect users to potentially malicious sites. While no scripts were explicitly extracted, the nature of the embedded links suggests a phishing or SEO spam attack vector. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9012

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=784.2&urwbo=2&pdf=784
    • http://rollermarathondijon.fr/index.php?article=576.2&rbpva=2&pdf=576
    • http://www.dikiliermanoto.com/index.php?article=127.1&snsfa=1&pdf=127
    • http://chavagnes.com/index.php?article=136.2&urwbo=2&pdf=136
    • http://www.mantrabeautybar.ca/index.php?article=1789.1&rukbv=1&pdf=1789
    • http://chavagnes.com/index.php?article=224.2&urwbo=2&pdf=224
    • http://urbanindoorgs.com/index.php?article=1259.1&lkbfl=1&pdf=1259
    • http://tienda.bosquedebambu.es/index.php?article=1031.1&dksnc=1&pdf=1031
    • http://harmenhomes.ca/index.php?article=205.1&wcdhp=1&pdf=205
    • http://chavagnes.com/index.php?article=1979.2&urwbo=2&pdf=1979
    • http://chavagnes.com/index.php?article=1952.2&urwbo=2&pdf=1952
    • http://chavagnes.com/index.php?article=1822.2&urwbo=2&pdf=1822
    • http://msobo.fr/index.php?article=53.2&dfkro=2&pdf=53
    • http://chavagnes.com/index.php?article=669.2&urwbo=2&pdf=669
    • http://phillipsandcoinc.com/index.php?article=959.1&sxlyu=1&pdf=959
    • http://chavagnes.com/index.php?article=413.2&urwbo=2&pdf=413
    • http://hotrodderclassifieds.com/index.php?article=798.1&hjjgr=1&pdf=798

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