Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f2fa25876c536e0…

MALICIOUS

PDF

45.3 KB Created: 2018-12-15 08:11:00 +03:00 Authoring application: FrameMaker 7.0 (via Acrobat Distiller 7.0 (Windows))
MD5: f7e9c4a9f1e644b47317068c3eb83129 SHA-1: f28170c3f3c49682bab051c1532e2e00d1adf297 SHA-256: 5f2fa25876c536e0b6dfc08270c788d819fa8542a496038956aa41b564a7ef28
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various book titles on the gorillawalker.com domain. The ML classifier also flagged the PDF as malicious. The primary attack pattern appears to be SEO manipulation or a link farm designed to direct traffic to potentially malicious or low-reputation content.

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/the-book-of-gad-the-seer-malayalam-translation-malayalam-edition.pdf
    • http://www.gorillawalker.com/pink-big-buddy-biographies.pdf
    • http://www.gorillawalker.com/greek-myth-plays-10-readers-theater-scripts-based-on-favorite.pdf
    • http://www.gorillawalker.com/codependency-codependency-gone-for-good-how-to-stop-worrying-stop.pdf
    • http://www.gorillawalker.com/the-developing-human-clinically-oriented-embryology-8th-edition.pdf
    • http://www.gorillawalker.com/hell-west-and-crooked-imprint.pdf
    • http://www.gorillawalker.com/panama-canal-what-it-is-what-it-means.pdf
    • http://www.gorillawalker.com/the-hudson-river-school-nature-and-the-americanvision.pdf
    • http://www.gorillawalker.com/molecular-biomethods-handbook.pdf
    • http://www.gorillawalker.com/variations-on-a-rococo-theme-for-cello-and-orchestra-original.pdf
    • http://www.gorillawalker.com/archie-and-amelie-love-and-madness-in-the-gilded-age.pdf
    • http://www.gorillawalker.com/100-masterpieces-of-design.pdf
    • http://www.gorillawalker.com/germany-as-a-culture-of-remembrance-promises-and-limits-of.pdf
    • http://www.gorillawalker.com/edwards-hovey-method-for-cornet-or-trumpet.pdf
    • http://www.gorillawalker.com/fundamentals-of-practical-aberration-theory-fundamental-knowledge-and-technics-for.pdf
    • http://www.gorillawalker.com/unlikeable-behind-the-problem-with-hillary.pdf
    • http://www.gorillawalker.com/8-gedichte-aus-letzte-bl-tter-op-10-zueignung-no.pdf
    • http://www.gorillawalker.com/explosive-eighteen-a-stephanie-plum-novel.pdf
    • http://www.gorillawalker.com/training-for-warriors-kindle-edition.pdf
    • http://www.gorillawalker.com/rad-rides-the-best-bmx-bikes-of-all-time.pdf
    • http://www.gorillawalker.com/biogeochemistry-of-a-subalpine-ecosystem-loch-vale-watershed-ecological-studies.pdf
    • http://www.gorillawalker.com/an-introduction-to-linear-programming.pdf
    • http://www.gorillawalker.com/theories-of-psychotherapy-counseling-concepts-and-cases.pdf
    • http://www.gorillawalker.com/financial-accounting-available-titles-cengagenow.pdf
    • http://www.gorillawalker.com/dreams-of-shreds-and-tatters.pdf
    • http://www.gorillawalker.com/global-forest-fragmentation.pdf
    • http://www.gorillawalker.com/the-networked-library-a-guide-for-the-educational-use-of.pdf
    • http://www.gorillawalker.com/black-and-white-from-snapshots-to-great-shots-dvd.pdf
    • http://www.gorillawalker.com/2010-national-level-proposition-construction-trends-qualification-exam-papers-authority.pdf
    • http://www.gorillawalker.com/advances-in-electrochemistry-and-electrochemical-engineering-volume-5-electrochemical-engineering.pdf
    • http://www.gorillawalker.com/the-elizabethan-puritan-movement-clarendon-paperbacks.pdf
    • http://www.gorillawalker.com/work-from-home-handbook-flex-your-time-improve-your-life.pdf
    • http://www.gorillawalker.com/mgmt-8-with-coursemate-1-term-6-months-printed-access.pdf
    • http://www.gorillawalker.com/the-dominguez-family-a-mexican-american-journey.pdf
    • http://www.gorillawalker.com/bidrag-til-den-fyenske-kongeborg-rugaards-dens-laens-og-dens.pdf
    • http://www.gorillawalker.com/la-primera-corona-la-historia-m-s-pol-mica-del.pdf
    • http://www.gorillawalker.com/serving-those-in-need-a-handbook-for-managing-faith-based.pdf
    • http://www.gorillawalker.com/monotremes-and-marsupials-handbook-of-the-mammals-of-the-world.pdf
    • http://www.gorillawalker.com/la-estela-de-los-soles-o-calendario-azteca-spanish-edition.pdf
    • http://www.gorillawalker.com/research-in-psychology-methods-and-design.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/