Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14bba594e29f630…

MALICIOUS

PDF

44.1 KB Created: 2018-12-15 08:09:42 +03:00 Authoring application: TeX (via MiKTeX pdfTeX-1.40.9)
MD5: 63b2abc2d1be46663ec4922ecd8a6452 SHA-1: a7793fbdd2252b524b12cc8a3579a82ed1996f53 SHA-256: c14bba594e29f6309d7ddabaa4afa4b1306bd3a87ee679a7a4849329fe0db769
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, indicating a link farm. The primary purpose appears to be SEO manipulation or distributing links to potentially malicious content hosted on gorillawalker.com. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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/hands-on-consulting.pdf
    • http://www.gorillawalker.com/iso-684-1974-analysis-of-soaps-determination-of-total-free.pdf
    • http://www.gorillawalker.com/major-league-baseball-profiles-vol-2-1871-1900.pdf
    • http://www.gorillawalker.com/molecular-respiratory-disease-vol-10no-4-2006-2006-isbn-4884072804.pdf
    • http://www.gorillawalker.com/technical-english-for-engineering-take-off.pdf
    • http://www.gorillawalker.com/sophocles-volume-ii-antigone-the-women-of-trachis-philoctetes-oedipus.pdf
    • http://www.gorillawalker.com/lightning-in-the-storm-101st-air-assault.pdf
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    • http://www.gorillawalker.com/iec-60335-2-47-ed-4-0-en-2002-household.pdf
    • http://www.gorillawalker.com/organisation-and-management-of-public-distribution-system.pdf
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    • http://www.gorillawalker.com/successful-time-management-for-dummies-portable-edition.pdf
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    • http://www.gorillawalker.com/lego-star-wars-anakin-space-pilot-space-pilot-3d.pdf
    • http://www.gorillawalker.com/amazing-snakes-of-the-southwest-and-west-coast.pdf
    • http://www.gorillawalker.com/the-global-politics-of-globalization-empire-vs-cosmopolis.pdf
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    • http://www.gorillawalker.com/progress-in-understanding-reading-scientific-foundations-and-new-frontiers.pdf
    • http://www.gorillawalker.com/decision-management-systems-a-practical-guide-to-using-business-rules.pdf
    • http://www.gorillawalker.com/prey-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/grosse-sonate-in-c-dur-grand-sonata-in-c-major.pdf
    • http://www.gorillawalker.com/rapid-pediatric-emergency-care-revised-07-by-bspa-barbara-j.pdf
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    • http://www.gorillawalker.com/britain-s-fleet-air-arm-in-world-war-ii.pdf
    • http://www.gorillawalker.com/from-every-stage-images-of-america-128-153-s-roots.pdf
    • http://www.gorillawalker.com/black-mass-apocalyptic-religion-and-the-death-of-utopia-kindle.pdf
    • http://www.gorillawalker.com/graphic-problems-in-petroleum-geology-leroy-low-1954-edition-ex.pdf
    • http://www.gorillawalker.com/it-s-okay-to-make-mistakes.pdf
    • http://www.gorillawalker.com/molecular-electronics-an-introduction-to-theory-and-experiment-nanotechnology-and.pdf
    • 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/

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