Malicious PDF — malware analysis report

Static analysis result for SHA-256 044a0e191a610d7e…

MALICIOUS

PDF

40.2 KB Created: 2018-11-30 20:09:07 +03:00 Authoring application: Microsoft Word: AdobePS 8.7.3 (301) (via Acrobat Distiller 5.0.5 for Macintosh)
MD5: 62530592dac58c88e223a218af625b33 SHA-1: 63c0ca02a0c3d8ca2850c42dbcbefa484a79b24d SHA-256: 044a0e191a610d7e24bc8620315c22b2f6ca6d56d46f0caf3ae38a2871558fc1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were explicitly extracted, the nature of the embedded links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on www.gorillawalker.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/sensations.pdf
    • http://www.gorillawalker.com/a-dying-fall-ruth-galloway-mystery.pdf
    • http://www.gorillawalker.com/uas-laboratories-company-overview-an-article-from-nutraceuticals-world-html.pdf
    • http://www.gorillawalker.com/japanese-cinema-in-the-digital-age.pdf
    • http://www.gorillawalker.com/raintree-oracle-and-cursed-harlequin-nocturne.pdf
    • http://www.gorillawalker.com/day-by-day-devotions-2.pdf
    • http://www.gorillawalker.com/scientific-queen-rearing.pdf
    • http://www.gorillawalker.com/beethoven-complete-bagatelles-for-piano-samwise-music-for-piano-volume.pdf
    • http://www.gorillawalker.com/metamorphosis-and-the-trial-collins-classics.pdf
    • http://www.gorillawalker.com/holler-if-you-hear-me-searching-for-tupac-shakur-paperback.pdf
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    • http://www.gorillawalker.com/out-of-the-fog-kindle-single-kindle-edition.pdf
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    • http://www.gorillawalker.com/the-powerscore-lsat-logic-games-bible-2015-edition-the-powerscore.pdf
    • http://www.gorillawalker.com/the-sky-so-heavy.pdf
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    • http://www.gorillawalker.com/understanding-and-measuring-morphological-complexity.pdf
    • http://www.gorillawalker.com/punch-or-the-london-charivari-volume-102-february-27-1892.pdf
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    • http://www.gorillawalker.com/ethics-oxford-readers.pdf
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    • http://www.gorillawalker.com/robert-smith-s-young-showjumper-selecting-training-competing.pdf
    • http://www.gorillawalker.com/tigers-2015.pdf
    • http://www.gorillawalker.com/kidnapped-by-river-rats-the-queen-s-smuggler-spy-for.pdf
    • http://www.gorillawalker.com/universe-a-journey-from-earth-to-the-edge-of-the.pdf
    • http://www.gorillawalker.com/god-has-no-shape-kindle-edition.pdf
    • http://www.gorillawalker.com/great-northern-a-swallows-and-amazons-book.pdf
    • http://www.gorillawalker.com/atlas-colorido-de-anatomia-veterin-ria-de-equinos-em-portuguese.pdf
    • http://www.gorillawalker.com/kaashaan-a-visual-journey-to-main-features-of-the-indigenous.pdf
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    • http://www.gorillawalker.com/a-textbook-of-biophysics-for-medical-science-and-biological-science.pdf
    • http://www.gorillawalker.com/critical-essays-in-monetary-theory.pdf
    • http://www.gorillawalker.com/the-complete-book-of-b-a-b-e-s.pdf
    • http://www.gorillawalker.com/the-physics-of-inertial-fusion-beam-plasma-interaction-hydrodynamics-hot.pdf
    • http://www.gorillawalker.com/elasmosaurio-nadador-de-cuello-largo-spanish-edition.pdf
    • http://www.gorillawalker.com/cleveland-cavaliers-nba-today-mankato-minn.pdf
    • http://www.gorillawalker.com/scarlet-alpha-marked-volume-1.pdf
    • http://www.gorillawalker.com/the-treasures-of-imperial-beijing-timeless-treasures.pdf
    • http://www.gorillawalker.com/warman-s-vietnam-war-collectibles-identification-and-price-guide-warmans.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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