Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7ad47f918d3c8ce…

MALICIOUS

PDF

44.7 KB Created: 2018-12-07 18:27:29 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.16)
MD5: f11aa51781226513a1cc4311192f0d9f SHA-1: b09b555b7d2eb3e7828a2e73493d2e3d4d5c0358 SHA-256: a7ad47f918d3c8ceb263afe6bcf5a3d411759c72862302c8c0290bff0b75322d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to potentially harmful content. The document body was unreadable, preventing a more specific analysis of its lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/say-please-lesbian-bdsm-erotica-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/to-save-humanity-what-matters-most-for-a-healthy-future.pdf
    • http://www.gorillawalker.com/storytime-stickers-dinosaurs-other-prehistoric-animals.pdf
    • http://www.gorillawalker.com/selling-out-the-church-the-dangers-of-church-marketing.pdf
    • http://www.gorillawalker.com/ambiguous-discourse-feminist-narratology-and-british-women-writers.pdf
    • http://www.gorillawalker.com/france-and-its-empire-since-1870.pdf
    • http://www.gorillawalker.com/rigby-on-our-way-to-english-bookroom-package-grade-3.pdf
    • http://www.gorillawalker.com/easter-is-coming-a-devotional-journey-with-jesus-devotional-journeys.pdf
    • http://www.gorillawalker.com/aforismos-y-haikus-spanish-edition.pdf
    • http://www.gorillawalker.com/the-very-best-of-hillsong.pdf
    • http://www.gorillawalker.com/driving-men-mad.pdf
    • http://www.gorillawalker.com/library-collection-development-policies-academic-public-and-special-libraries-good.pdf
    • http://www.gorillawalker.com/victoria-woodhull-fearless-feminist-trailblazer-biographies.pdf
    • http://www.gorillawalker.com/sweetgrass.pdf
    • http://www.gorillawalker.com/pharmacokinetics-mathematical-and-statistical-approaches-to-metabolism-and-distribution-of.pdf
    • http://www.gorillawalker.com/an-introduction-to-fractals-and-chaos.pdf
    • http://www.gorillawalker.com/italian-for-beginners-the-best-handbook-for-learning-to-speak.pdf
    • http://www.gorillawalker.com/stencil-style-101-more-than-20-reusable-fashion-stencils-with.pdf
    • http://www.gorillawalker.com/good-food-pasta-and-noodle-dishes-triple-tested-recipes-bbc.pdf
    • http://www.gorillawalker.com/woodenboat-the-magazine-for-wooden-boat-owners-builders-and-designers.pdf
    • http://www.gorillawalker.com/smoothie-superfood-detox-diet-recipes-fat-burning-smoothies-recipes-for.pdf
    • http://www.gorillawalker.com/loving-a-loud-mate-rough-river-coyotes-10-siren-publishing.pdf
    • http://www.gorillawalker.com/write-a-bestselling-thriller-strategies-to-get-your-book-published.pdf
    • http://www.gorillawalker.com/joining-the-dots-a-fresh-approach-to-sight-reading-book.pdf
    • http://www.gorillawalker.com/the-everly-brothers-29-golden-hits-piano-vocal-chords.pdf
    • http://www.gorillawalker.com/the-pauline-privilege-1931.pdf
    • http://www.gorillawalker.com/art-that-heals-the-image-as-medicine-in-ethiopia-african.pdf
    • http://www.gorillawalker.com/savage-suzerain-savage-worlds.pdf
    • http://www.gorillawalker.com/how-to-go-home-without-feeling-like-a-child-resolving.pdf
    • http://www.gorillawalker.com/nabokov-s-shakespeare.pdf
    • http://www.gorillawalker.com/odbc-3-5-developer-s-guide.pdf
    • http://www.gorillawalker.com/biotechnology-a-comprehensive-curriculum-guide-for-a-one-semester-course.pdf
    • http://www.gorillawalker.com/volvo-940-swedish-service-and-repair-manual-haynes-service-and.pdf
    • http://www.gorillawalker.com/bioinformatics-and-molecular-evolution.pdf
    • http://www.gorillawalker.com/to-fly-contemporary-aerial-photography.pdf
    • http://www.gorillawalker.com/the-mammoth-hunters-earth-s-children-book-3.pdf
    • http://www.gorillawalker.com/the-tank-war-the-men-the-machines-and-the-long.pdf
    • http://www.gorillawalker.com/working-for-yourself-law-and-taxes-for-independent-contractors-freelancers.pdf
    • http://www.gorillawalker.com/electric-machines-a-modern-approach.pdf
    • http://www.gorillawalker.com/see-what-a-seal-can-do.pdf
    • http://www.gorillawalker.com/am
    • 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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