Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c02e8f5a964170c…

MALICIOUS

PDF

43.3 KB Created: 2018-12-15 08:11:21 +03:00 Authoring application: Adobe Acrobat Pro 11.0.18 (via Adobe PDF Library 11.0)
MD5: fc3dbfc9f6d71766f57a3ae77f54f745 SHA-1: 60e6c00e2bd3b786906ea6be0c959c7646f29ef2 SHA-256: 6c02e8f5a964170ccbd3bca2e1fa3938965e2fbb174024736a5a602e6b148f29
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a large number of embedded external links, suggesting a link farm or content distribution tactic. The presence of these links, combined with the file's malicious verdict, indicates a likely attempt to lure users to external resources, potentially for phishing or malware distribution. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/life-laughter-a-compilation-of-favorite-humor-columns.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/