Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbae7dd8b4919dac…

MALICIOUS

PDF

45.3 KB Created: 2018-11-30 20:30:06 +03:00 Authoring application: FrameMaker 5.5.6. (via Acrobat Distiller 4.05 for Sparc Solaris)
MD5: 18d360d9b16891f984c73fd9b0811fc6 SHA-1: f5299657cc7237fbc60b6ab9c16ad5ecb492ad60 SHA-256: bbae7dd8b4919dac58abbc9caf42f9307f76fd2c8d70269734d0e6ed1df0af4d
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a mass external link farm, with 32 links pointing to URLs hosted on www.gorillawalker.com. The ML classifier also indicated a high probability of maliciousness. The document body appears to be heavily obfuscated or corrupted, preventing analysis of its direct content. The primary attack vector appears to be the distribution of numerous links, likely for SEO spam or to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/ethnic-skin-care-an-article-from-household-personal-products-industry.pdf
    • http://www.gorillawalker.com/different-kinds-of-darkness.pdf
    • http://www.gorillawalker.com/foundations-of-financial-management-10th-edition-self-study-software-cd.pdf
    • http://www.gorillawalker.com/a-practical-guide-to-tig-gta-welding.pdf
    • http://www.gorillawalker.com/einstein-1905-2005-poincar-seminar-2005-progress-in-mathematical-physics.pdf
    • http://www.gorillawalker.com/jean-auguste-dominique-ingres-french-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/disney-liv-and-maddie-wall-calendar-2015.pdf
    • http://www.gorillawalker.com/diccionario-oceano-compact-espanol-aleman-oceano-dictionary-spanish-german-spanish.pdf
    • http://www.gorillawalker.com/taming-the-paper-tiger-organizing-the-paper-in-your-life.pdf
    • http://www.gorillawalker.com/the-king-of-the-elves-the-collected-stories-of-philip.pdf
    • http://www.gorillawalker.com/sisters-in-war-a-story-of-love-family-and-survival.pdf
    • http://www.gorillawalker.com/memory-puzzles-usborne-puzzle-cards.pdf
    • http://www.gorillawalker.com/the-metadata-manual-a-practical-workbook-chandos-information-professional-series.pdf
    • http://www.gorillawalker.com/hesiod-and-aeschylus-cornell-studies-in-classical-philology.pdf
    • http://www.gorillawalker.com/de-gaulle-haus-publishing-life-times.pdf
    • http://www.gorillawalker.com/the-randy-travis-songbook.pdf
    • http://www.gorillawalker.com/let-s-find-out-about-bicycles-let-s-find-out.pdf
    • http://www.gorillawalker.com/bude-and-clovelly-boscastle-and-holsworthy-landranger-maps-190-os.pdf
    • http://www.gorillawalker.com/folk-rock-harmonica-play-along-volume-4-book-cd-diatonic.pdf
    • http://www.gorillawalker.com/there-are-no-secrets-thoughts-on-acting-and-theatre.pdf
    • http://www.gorillawalker.com/the-positive-school-of-criminology-three-lectures-given-at-the.pdf
    • http://www.gorillawalker.com/blue-water-green-skipper-a-memoir-of-sailing-alone-across.pdf
    • http://www.gorillawalker.com/direct-smear-cd-a-cd-rom-atlas-of-gram-stained.pdf
    • http://www.gorillawalker.com/think-and-grow-rich-complete-and-unabridged.pdf
    • http://www.gorillawalker.com/gene-therapy-and-cell-therapy-through-the-liver-current-aspects.pdf
    • http://www.gorillawalker.com/imperfect-control-our-lifelong-struggles-with-power-and-surrender.pdf
    • http://www.gorillawalker.com/the-official-lsat-preptest-51-publisher-law-school-admission-council.pdf
    • http://www.gorillawalker.com/emarketing-excellence-planning-and-optimising-your-digital-marketing-emarketing-essentials.pdf
    • http://www.gorillawalker.com/practical-energy-efficiency-optimization.pdf
    • http://www.gorillawalker.com/visual-thinking-strategies-using-art-to-deepen-learning-across-school.pdf
    • http://www.gorillawalker.com/ancient-colonisations-analogy-similarity-and-difference.pdf
    • http://www.gorillawalker.com/broken-red.pdf
    • http://www.gorillawalker.com/collective-licensing-at-the-isp-level-iael-international-entertainment-law.pdf
    • http://www.gorillawalker.com/la-desordenada-codicia-de-los-bienes-ajenos-the-disorderly-greed.pdf
    • http://www.gorillawalker.com/a-treatise-on-spherical-trigonometry.pdf
    • http://www.gorillawalker.com/sniper-in-helmand-six-months-on-the-frontline.pdf
    • http://www.gorillawalker.com/hit-that-blot-a-carol-golden-novel-kindle-edition.pdf
    • http://www.gorillawalker.com/loving-justice-lifeguide-bible-studies.pdf
    • http://www.gorillawalker.com/business-law-legal-environment-transactions-and-regulation-by-cameron-george.pdf
    • http://www.gorillawalker.com/making-handmade-books-100-bindings-structures-forms.pdf
    • http://www.gorillawalker.com
    • 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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