Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f932ddd2dc0f3b4…

MALICIOUS

PDF

45.1 KB Created: 2018-12-07 18:27:56 +03:00 Authoring application: - (via Acrobat Distiller 15.0 (Windows))
MD5: be420e59af08773e59ac8ead4146c299 SHA-1: 50a60e5d43e52e0b6b95340dbc1e8ea6d30f0347 SHA-256: 0f932ddd2dc0f3b40a76af3af1e19e4ed0340984edb81ce86b7acd7f8e2dddad
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 on the domain gorillawalker.com. This is indicative of a link farm, likely intended for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious.

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/viral-hepatitis-and-the-russian-war-in-chechnya.pdf
    • http://www.gorillawalker.com/big-top-otto-elephants-never-forget.pdf
    • http://www.gorillawalker.com/handbook-of-charged-particle-optics.pdf
    • http://www.gorillawalker.com/cases-and-materials-on-pleading-and-procedure-university-casebook-series.pdf
    • http://www.gorillawalker.com/pharmacy-technician-flash-review.pdf
    • http://www.gorillawalker.com/explorer-s-guide-west-texas-a-great-destination-explorer-s.pdf
    • http://www.gorillawalker.com/loving-mr-spock.pdf
    • http://www.gorillawalker.com/fuzzy-set-theory-foundations-and-applications.pdf
    • http://www.gorillawalker.com/report-of-the-cruise-of-the-u-s-revenue-cutter.pdf
    • http://www.gorillawalker.com/halo-5-2016-mini-poster-calendar.pdf
    • http://www.gorillawalker.com/the-ayurvedic-vegan-kitchen-finding-harmony-through-food.pdf
    • http://www.gorillawalker.com/stem-cell-dialogues-a-philosophical-and-scientific-inquiry-into-medical.pdf
    • http://www.gorillawalker.com/the-sky-never-changes-testimonies-from-the-guatemalan-labor-movement.pdf
    • http://www.gorillawalker.com/tiger-tiger-a-memoir.pdf
    • http://www.gorillawalker.com/praga-prague-iudades-y-paises-del-mundo-spanish-edition.pdf
    • http://www.gorillawalker.com/magicae-terra-season-one-kindle-edition.pdf
    • http://www.gorillawalker.com/chumbara-french-folk-song-for-two-part-chorus-and-piano.pdf
    • http://www.gorillawalker.com/social-complexity-and-the-development-of-towns-in-iberia-ba.pdf
    • http://www.gorillawalker.com/flash-photography-beginner-tips-learn-photo-lighting-flash-for-cameras.pdf
    • http://www.gorillawalker.com/london-college-of-music-handbook-for-certificate-examinations-in-electric.pdf
    • http://www.gorillawalker.com/relational-cultural-therapy-theories-of-psychotherapy.pdf
    • http://www.gorillawalker.com/n-t-c-s-american-idioms-dictionary-english.pdf
    • http://www.gorillawalker.com/old-goat-in-a-tin-boat-a-2-100-mile.pdf
    • http://www.gorillawalker.com/levinas-totality-and-infinity-a-reader-s-guide-reader-s.pdf
    • http://www.gorillawalker.com/the-candy-striper.pdf
    • http://www.gorillawalker.com/astronomia-contemporanea-contemporary-astronomy-spanish-edition.pdf
    • http://www.gorillawalker.com/life-in-dixie-during-the-war-civil-war-georgia.pdf
    • http://www.gorillawalker.com/forbidden-fruit-the-ethics-of-secularism.pdf
    • http://www.gorillawalker.com/the-secrets-chastisement-and-triumph-of-the-two-hearts-kindle.pdf
    • http://www.gorillawalker.com/go-baby-go-hello-baby-board-books.pdf
    • http://www.gorillawalker.com/world-religions-a-historical-approach.pdf
    • http://www.gorillawalker.com/romans-bible-studies-in-paul-s-letter-to-the-romans.pdf
    • http://www.gorillawalker.com/a-narrative-of-the-mission-of-the-united-brethren-among.pdf
    • http://www.gorillawalker.com/medical-transcription-techniques-technologies-and-editing-skills-3rd-third-edition.pdf
    • http://www.gorillawalker.com/atheism-what-s-it-all-about-what-s-wrong-with.pdf
    • http://www.gorillawalker.com/scenes-from-village-life.pdf
    • http://www.gorillawalker.com/modelling-the-panther-tank-modelling-guides.pdf
    • http://www.gorillawalker.com/ward-based-critical-care-a-guide-for-health-professionals.pdf
    • http://www.gorillawalker.com/green-thumb-guides.pdf
    • http://www.gorillawalker.com/cinderella-for-tablet-devices-usborne-first-reading-level-four.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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