Malicious PDF — malware analysis report

Static analysis result for SHA-256 18057b308c1444ec…

MALICIOUS

PDF

45.2 KB Created: 2018-12-15 20:01:15 +03:00 Authoring application: FrameMaker 9.0 (via Acrobat Distiller 9.0.0 (Windows))
MD5: 525c7bc267ffd371b851b8bb64c29281 SHA-1: ae040752bc524f52a14d6e90541fed05c5a3eb4c SHA-256: 18057b308c1444ecefdb770f334da57740b8d47394cd620dad4ead988497c8e1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The primary purpose appears to be SEO manipulation or distributing links to other potentially malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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/in-the-money-a-book-about-banking-money-matters.pdf
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    • 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/