Malicious PDF — malware analysis report

Static analysis result for SHA-256 0249c433f2f0ca1e…

MALICIOUS

PDF

12.4 KB Created: 2015-07-15 05:51:32 +04:00 Authoring application: DOMPDF
MD5: aeacb650b1d3d8218b8dec8240761238 SHA-1: d6e14e1d3f9dfdcf6fc591d8a830f29fefa39c26 SHA-256: 0249c433f2f0ca1ed90e50b73e838a66a86d62480ad6383ce8d85ee3cb455678
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to various domains, suggesting a link farm or redirection scheme. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of external links and the heuristic firing indicate a malicious intent to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8995

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://primetimerecords.com/index.php?article=2107.1&cvsqx=1&pdf=2107
    • http://wilsonswharf.com/index.php?article=1872.7&lcckn=7&pdf=1872
    • http://hillcrestchurch.info/index.php?article=966.1&jhrre=1&pdf=966
    • http://primetimerecords.com/index.php?article=2021.1&cvsqx=1&pdf=2021
    • http://menner-photo.com/index.php?article=47.2&ijoko=2&pdf=47
    • http://primetimerecords.com/index.php?article=748.1&cvsqx=1&pdf=748
    • http://howtoexcelinlife.com/index.php?article=466.1&ytcwy=1&pdf=466
    • http://asinvestmentgroup.com/index.php?article=2026.1&jckgl=1&pdf=2026
    • http://tienda.bosquedebambu.es/index.php?article=454.1&dksnc=1&pdf=454
    • http://primetimerecords.com/index.php?article=680.1&cvsqx=1&pdf=680
    • http://primetimerecords.com/index.php?article=2191.1&cvsqx=1&pdf=2191
    • http://primetimerecords.com/index.php?article=1301.1&cvsqx=1&pdf=1301
    • http://centrodepsicoterapiaintegral.com.mx/index.php?article=2273.1&cpuqr=1&pdf=2273
    • http://primetimerecords.com/index.php?article=2166.1&cvsqx=1&pdf=2166
    • http://TomOn.tv/index.php?article=1893.1&oeyju=1&pdf=1893
    • http://primetimerecords.com/index.php?article=1026.1&cvsqx=1&pdf=1026
    • http://ura-sandoz.com/index.php?article=384.1&nydkb=1&pdf=384

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