Malicious PDF — malware analysis report

Static analysis result for SHA-256 0456737e36a6fa37…

MALICIOUS

PDF

44.0 KB Created: 2018-12-28 08:09:01 +03:00 Authoring application: Adobe Acrobat Pro 11.0.0
MD5: 2962cbf09c60ded6538caa97b2546e02 SHA-1: 4e089d3af691ffeef90a41f42854e741e7ee1b1e SHA-256: 0456737e36a6fa3793ee8864f4945b51066580945c9edbc849f1ec1da2b0aa4a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing 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 extracted, the sheer volume of linked PDFs suggests a malicious intent to redirect the user, potentially as a lure or to host further stages of an attack.

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/surfaces-and-interfaces-for-biomaterials.pdf
    • http://www.gorillawalker.com/littlest-pet-shop-my-big-world-of-little-pets-a.pdf
    • http://www.gorillawalker.com/ant-man-second-chance-man-volume-1.pdf
    • http://www.gorillawalker.com/the-complete-idiot-s-guide-to-bridge-2nd-edition.pdf
    • http://www.gorillawalker.com/angola-with-city-map-cartographia-map.pdf
    • http://www.gorillawalker.com/writers-choice-grammar-and-composition-student-edition.pdf
    • http://www.gorillawalker.com/writer-s-workshop-for-the-common-core-a-step-by.pdf
    • http://www.gorillawalker.com/luftwaffe-viermot-aces-1942-45-aircraft-of-the-aces.pdf
    • http://www.gorillawalker.com/cugoano-against-slavery.pdf
    • http://www.gorillawalker.com/sustainable-energy-si-edition.pdf
    • http://www.gorillawalker.com/sediment-transport-in-irrigation-canals-a-new-approach-unesco-ihe.pdf
    • http://www.gorillawalker.com/housewives-at-play-wifey-see-wifey-do.pdf
    • http://www.gorillawalker.com/essentials-of-clinical-pharmacology-in-nursing-instructors-manual-and-test.pdf
    • http://www.gorillawalker.com/a-colour-atlas-of-respiratory-infections-medical-atlas-series.pdf
    • http://www.gorillawalker.com/environmental-democracy-facing-uncertainty-ecopolis.pdf
    • http://www.gorillawalker.com/ubd-sydney-limited-edition-street-directory.pdf
    • http://www.gorillawalker.com/powerpoint-2010-basic-certblaster-student-manual-with-data-ilt.pdf
    • http://www.gorillawalker.com/a-pilot-s-guide-to-foods-that-fly.pdf
    • http://www.gorillawalker.com/das-c-reaktive-protein-immunology-reports-and-reviews-volume-5.pdf
    • http://www.gorillawalker.com/rifles-illustrated-history-of-weapons.pdf
    • http://www.gorillawalker.com/chitra-tagore-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-landlord-s-little-diaper-girl-abdl-age-play-erotic.pdf
    • http://www.gorillawalker.com/concerto-for-clarinet-in-b-flat-original-in-a-major.pdf
    • http://www.gorillawalker.com/pale-as-a-ghost.pdf
    • http://www.gorillawalker.com/who-chose-the-gospels-probing-the-great-gospel-conspiracy.pdf
    • http://www.gorillawalker.com/how-to-play-the-sports-recruiting-game-and-get-an.pdf
    • http://www.gorillawalker.com/the-best-dog-in-the-world.pdf
    • http://www.gorillawalker.com/medical-laboratory-technology-a-procedure-manual-for-routine-diagnostic-tests.pdf
    • http://www.gorillawalker.com/the-travel-hacking-guide-to-norway-a-guide-for-travelers.pdf
    • http://www.gorillawalker.com/song-in-the-silence-the-tale-of-lanen-kaelar-tales.pdf
    • http://www.gorillawalker.com/forsyth-county-ga-street-map.pdf
    • http://www.gorillawalker.com/baltiques-poesie-gallimard-french-edition.pdf
    • http://www.gorillawalker.com/asvab-exam-cram-armed-services-vocational-aptitude-battery-2nd-edition.pdf
    • http://www.gorillawalker.com/edipo-re-e-medea-di-pier-paolo-pasolini-mito-visione.pdf
    • http://www.gorillawalker.com/the-space-between-an-outlander-novella-kindle-edition.pdf
    • http://www.gorillawalker.com/the-music-theory-handbook.pdf
    • http://www.gorillawalker.com/symplectic-topology-and-floer-homology-2-volume-hardback-set-new.pdf
    • http://www.gorillawalker.com/hawkes-eye-view-london.pdf
    • http://www.gorillawalker.com/regenerative-healing-for-life-a-new-paradigm-to-treat-injuries.pdf
    • http://www.gorillawalker.com/a-student-s-guide-to-hearsay.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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