Malicious PDF — malware analysis report

Static analysis result for SHA-256 71e6397a5bd1ca86…

MALICIOUS

PDF

41.7 KB Created: 2018-12-07 18:29:47 +03:00 Authoring application: - (via Mac OS X 10.6.7 Quartz PDFContext)
MD5: 02f217be3f82be21224706cc674d2cea SHA-1: 71c4613b97f716bf1a7e076aa7cf5f75312c2565 SHA-256: 71e6397a5bd1ca86eb1535dd6afefb715674a7d4a7e65fbc0d98170caecc2edd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure itself suggests an attempt to redirect users to a large number of external resources.

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/historical-aspects-of-organic-evolution.pdf
    • http://www.gorillawalker.com/immortal-laws.pdf
    • http://www.gorillawalker.com/mystic-cool-neuroplasticity-thought-and-the-power-of-attitude.pdf
    • http://www.gorillawalker.com/the-guide-to-i-t-contracting.pdf
    • http://www.gorillawalker.com/when-hippo-was-hairy-and-other-tales-from-africa.pdf
    • http://www.gorillawalker.com/20-30-bible-study-for-young-adults-prayer-living-in.pdf
    • http://www.gorillawalker.com/200-killer-sudoku-1.pdf
    • http://www.gorillawalker.com/weisenberger-s-federal-civil-procedure-2009-litigation-manual-including-complete.pdf
    • http://www.gorillawalker.com/goldie-and-the-bears-milliken-s-musical-plays.pdf
    • http://www.gorillawalker.com/out-and-about-in-hungary-vendeg-varo-travel-guides.pdf
    • http://www.gorillawalker.com/the-beaver-mandolin-and-guitar-folio-number-4-solo-mandolin.pdf
    • http://www.gorillawalker.com/lord-don-t-you-love-me-anymore.pdf
    • http://www.gorillawalker.com/handheld-usability.pdf
    • http://www.gorillawalker.com/the-legends-of-the-jews-vol-v-from-the-creation.pdf
    • http://www.gorillawalker.com/the-standard-babylonian-epic-of-gilgamesh.pdf
    • http://www.gorillawalker.com/once-upon-a-cuento.pdf
    • http://www.gorillawalker.com/russian-picture-word-book-learn-over-500-commonly-used-russian.pdf
    • http://www.gorillawalker.com/extraordinary-warren-a-super-chicken-pix.pdf
    • http://www.gorillawalker.com/studying-aging-and-social-change-conceptual-and-methodological-issues.pdf
    • http://www.gorillawalker.com/inventory-and-monitoring-coordination-guidelines-for-the-use-of-aerial.pdf
    • http://www.gorillawalker.com/aerial-photography-professional-techniques-and-commercial-applications.pdf
    • http://www.gorillawalker.com/paranormal-romance-and-erotica-short-stories.pdf
    • http://www.gorillawalker.com/men-above-the-law-russian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/write-it-right-a-little-blacklist-of-literary-faults.pdf
    • http://www.gorillawalker.com/murder-and-mayhem-in-jefferson-county.pdf
    • http://www.gorillawalker.com/making-sense-of-your-freedom-philosophy-for-the-perplexed.pdf
    • http://www.gorillawalker.com/adornments-sew-create-accessories-with-fabric-lace-beads.pdf
    • http://www.gorillawalker.com/a-pickle-for-the-knowing-ones-kindle-edition.pdf
    • http://www.gorillawalker.com/robert-bruce-scotland-s-hero-king-scottish-history.pdf
    • http://www.gorillawalker.com/schott-rossini-gioacchino-antonio-6-quartets-band-2-flute-clarinet.pdf
    • http://www.gorillawalker.com/children-in-care-custody-bill-house-of-commons-bills.pdf
    • http://www.gorillawalker.com/gene-therapy-of-cancer-third-edition-translational-approaches-from-preclinical.pdf
    • http://www.gorillawalker.com/gold-standard-gamsat-preparation-australia-ireland-uk.pdf
    • http://www.gorillawalker.com/simple-pen-drawing-of-children-animals-paperback.pdf
    • http://www.gorillawalker.com/intermediate-algebra-hardcover.pdf
    • http://www.gorillawalker.com/agile-business-a-leader-s-guide-to-harnessing-complexity.pdf
    • http://www.gorillawalker.com/tooth-and-claw.pdf
    • http://www.gorillawalker.com/i-caught-my-wife-with-the-sitter-sitter-sex-story.pdf
    • http://www.gorillawalker.com/the-holy-land-ancient-world.pdf
    • http://www.gorillawalker.com/introduction-to-career-counselling-coaching.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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