Malicious PDF — malware analysis report

Static analysis result for SHA-256 984c74510c52cc3d…

MALICIOUS

PDF

11.8 KB Created: 2015-07-15 16:27:24 +04:00 Authoring application: DOMPDF
MD5: 5ddcba9953859d6763e9bc2bd28c7815 SHA-1: 070ad270b2529198ed9f625bcf124f8c1873c2fd SHA-256: 984c74510c52cc3dd3b0b3c1c75b72282cbdc6240374d624be9ddfe8d3f583c7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body, though partially corrupted, contains references to trading options and includes several of the same URLs found in the link farm. The primary attack pattern appears to be a link farm designed to manipulate search engine results or direct users to potentially malicious websites.

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=2415.2&urwbo=2&pdf=2415
    • http://riddlet.com/index.php?article=2371.2&bxiuo=2&pdf=2371
    • http://msobo.fr/index.php?article=531.2&dfkro=2&pdf=531
    • http://chavagnes.com/index.php?article=2086.2&urwbo=2&pdf=2086
    • http://rollermarathondijon.fr/index.php?article=637.2&rbpva=2&pdf=637
    • http://chavagnes.com/index.php?article=185.2&urwbo=2&pdf=185
    • http://quraniarbi.com/index.php?article=1373.2&sbfeb=2&pdf=1373
    • http://www.pieuvre-electrique-toulousaine.fr/index.php?article=1138.1&otafi=1&pdf=1138
    • http://aryservicos.com/index.php?article=978.1&chxuv=1&pdf=978
    • http://chavagnes.com/index.php?article=2174.2&urwbo=2&pdf=2174
    • http://chavagnes.com/index.php?article=688.2&urwbo=2&pdf=688
    • http://chavagnes.com/index.php?article=1333.2&urwbo=2&pdf=1333
    • http://www.mantrabeautybar.ca/index.php?article=1546.1&rukbv=1&pdf=1546
    • http://chavagnes.com/index.php?article=1325.2&urwbo=2&pdf=1325
    • http://weterynarz-gdynia.pl/index.php?article=5.2&axpfr=2&pdf=5
    • http://chavagnes.com/index.php?article=1929.2&urwbo=2&pdf=1929
    • http://www.wallart.com.es/index.php?article=925.1&dxunj=1&pdf=925

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