Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab76bc1512f01b9…

MALICIOUS

PDF

46.2 KB Created: 2018-11-30 20:25:14 +03:00 Authoring application: Adobe Acrobat 7.05 (via Adobe Acrobat 7.05 Paper Capture Plug-in)
MD5: 433b10f74e4c189b1ddba073d0b109aa SHA-1: 7ac0e31992bd6c2deeb0deb69b195b575e81ef57 SHA-256: 7ab76bc1512f01b9ced90649dbcaa603b558fda90600428689a966dc1623d31b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7914

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://www.gorillawalker.com/final-argument-an-inquiry-into-the-torture-and-murder-of.pdf
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    • http://www.goril
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/