Malicious PDF — malware analysis report

Static analysis result for SHA-256 a25d18b7edee9858…

MALICIOUS

PDF

32.6 KB Created: 2020-02-08 21:01:39 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 8.0.0 (Windows))
MD5: 6a2c9bc938db7b478a5c4bc2d03b3a1e SHA-1: ad9761da51eb67841fdbfdea7192230c844477ea SHA-256: a25d18b7edee985813c00d9ca57d64fe79d03fa67a598ff0f8b7f6ddc7a3e12f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, primarily hosted on 'gorillawalker.com'. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious with a high probability.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/arizona-environmental-law-handbook-state-environmental-law-handbooks.pdf
    • http://www.gorillawalker.com/praise-southern-style-satb.pdf
    • http://www.gorillawalker.com/the-feral-child-the-feral-child-trilogy.pdf
    • http://www.gorillawalker.com/systematic-reviews.pdf
    • http://www.gorillawalker.com/charlie-the-ranch-dog-charlie-s-snow-day-i-can.pdf
    • http://www.gorillawalker.com/current-medical-diagnosis-and-treatment-2015-kindle-edition.pdf
    • http://www.gorillawalker.com/come-holy-spirit-heal-and-reconcile-report-of-the-wcc.pdf
    • http://www.gorillawalker.com/too-many-traitors-hardy-boys-casefiles-case-14.pdf
    • http://www.gorillawalker.com/poker-face-the-masks-series-volume-4.pdf
    • http://www.gorillawalker.com/the-studio-sos-book-solutions-and-techniques-for-the-project.pdf
    • http://www.gorillawalker.com/learn-to-draw-3-d.pdf
    • http://www.gorillawalker.com/the-vegetation-of-wisconsin-an-ordination-of-plant-communities.pdf
    • http://www.gorillawalker.com/abuse-in-the-jewish-community-religious-and-communal-factors-that.pdf
    • http://www.gorillawalker.com/home-key-ideas-in-geography.pdf
    • http://www.gorillawalker.com/off-season-the-off-series-book-6.pdf
    • http://www.gorillawalker.com/circle-nine.pdf
    • http://www.gorillawalker.com/fundamentals-and-applications-of-solar-energy-aiche-symposium-series-198.pdf
    • http://www.gorillawalker.com/rich-friends-kindle-edition.pdf
    • http://www.gorillawalker.com/the-wisdom-of-yoga-a-seeker-s-guide-to-extraordinary.pdf
    • http://www.gorillawalker.com/rethinking-religion-in-india-the-colonial-construction-of-hinduism-routledge.pdf
    • http://www.gorillawalker.com/ion-exchange-in-analytical-chemistry.pdf
    • http://www.gorillawalker.com/mass-migration-to-the-united-states-classical-and-contemporary-periods.pdf
    • http://www.gorillawalker.com/unfinished-grave-judge-rosswell-carew-mystery-series-book-4.pdf
    • http://www.gorillawalker.com/a-pilgrimage-to-nejd-v1-the-cradle-of-the-arab.pdf
    • http://www.gorillawalker.com/how-jesus-transforms-the-ten-commandments.pdf
    • http://www.gorillawalker.com/breaking-free-from-partner-abuse-voices-of-battered-women-caught.pdf
    • http://www.gorillawalker.com/building-the-nutshell-pram.pdf
    • http://www.gorillawalker.com/paul-yandell-collection-craig-dobbins-accoustic-guitar-workshop.pdf
    • http://www.gorillawalker.com/the-artist-s-studio-for-strings-bowing-development-series-violin.pdf
    • http://www.gorillawalker.com/industrial-conspiracies-a-lecture-delivered-in-heilig-theatre-portland-oregon.pdf
    • http://www.gorillawalker.com/the-art-of-off-camera-flash-photography-techniques-and-images.pdf
    • http://www.gorillawalker.com/descent-into-chaos-the-world-s-most-unstable-region-and.pdf
    • http://www.gorillawalker.com/introducing-electronic-archiving.pdf
    • http://www.gorillawalker.com/the-life-of-buddha-history-of-civilization.pdf
    • http://www.gorillawalker.com/the-grammar-of-graphics-statistics-and-computing.pdf
    • http://www.gorillawalker.com/c-mo-ganar-en-el-deporte-de-los-negocios-si.pdf
    • http://www.gorillawalker.com/opening-the-bidding-official-better-bridge.pdf
    • http://www.gorillawalker.com/religious-liberty-in-south-america-with-special-reference-to-recent.pdf
    • http://www.gorillawalker.com/multicultural-theatre-scenes-and-monologs-from-new-hispanic-asian-and.pdf
    • http://www.gorillawalker.com/kid-beowulf-and-the-song-of-roland.pdf
    • http://www.gorillawalker.com/abuse-in-the-jewish-community-religious-and-communa
    • 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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