Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b81b7955823eb21…

MALICIOUS

PDF

33.4 KB Created: 2019-12-14 06:58:45 +03:00 Authoring application: Writer (via OpenOffice.org 1.1.2)
MD5: eede149e8b123ad8aba93a8af7444eae SHA-1: fe67a1a75d625ef307a7f861aaffce1e931d22c0 SHA-256: 3b81b7955823eb213c5203928aa34524abc4d2c9c2af0947b89db13a4b0ef940
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content indirectly. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was unreadable.

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/the-continuing-journey.pdf
    • http://www.gorillawalker.com/pocket-practice-ccrn-edition-book-one-practice-questions-with-rationales.pdf
    • http://www.gorillawalker.com/jailhouse-strong-the-successful-mindset-manual-kindle-edition.pdf
    • http://www.gorillawalker.com/a-history-of-the-life-sciences.pdf
    • http://www.gorillawalker.com/nuevos-tacos-cl-sicos-de-lorena-garc-a-spanish-edition.pdf
    • http://www.gorillawalker.com/a-medical-doctor-examines-life-on-three-continents-a-pakistani.pdf
    • http://www.gorillawalker.com/carter-3e-text-workbook-package.pdf
    • http://www.gorillawalker.com/the-a-to-z-of-video-and-audio-visual-jargon.pdf
    • http://www.gorillawalker.com/analytic-aspects-of-quantum-fields.pdf
    • http://www.gorillawalker.com/islam-outline-of-a-classification-scheme.pdf
    • http://www.gorillawalker.com/mummy-dk-eyewitness-books.pdf
    • http://www.gorillawalker.com/on-uganda-s-terms-a-journal-by-an-american-nurse.pdf
    • http://www.gorillawalker.com/allergies-an-entry-from-thomson-gale-s-gale-encyclopedia-of.pdf
    • http://www.gorillawalker.com/shepherd-s-hey-bfms-3-study-score.pdf
    • http://www.gorillawalker.com/standards-for-blood-banks-and-transfusion-services-26th-edition.pdf
    • http://www.gorillawalker.com/isis-inside-the-army-of-terror-kindle-edition.pdf
    • http://www.gorillawalker.com/new-masteringgeology-standalone-access-card-for-earth-an-introduction-to.pdf
    • http://www.gorillawalker.com/die-ungarische-methode-ein-algorithmus-fur-bipartite-matchings-german-edition.pdf
    • http://www.gorillawalker.com/the-statesman-s-yearbook-2014-the-politics-cultures-and-economies.pdf
    • http://www.gorillawalker.com/life-magazine-december-18-1939.pdf
    • http://www.gorillawalker.com/new-zealand-destination.pdf
    • http://www.gorillawalker.com/divided-together-the-united-states-and-the-soviet-union-in.pdf
    • http://www.gorillawalker.com/modernism-narrative-and-humanism.pdf
    • http://www.gorillawalker.com/disappearing-nightly-book-one-of-esther-diamond-esther-diamond-novel.pdf
    • http://www.gorillawalker.com/days-of-fire-and-glory-the-rise-and-fall-of.pdf
    • http://www.gorillawalker.com/play-at-the-center-of-the-curriculum-6th-edition.pdf
    • http://www.gorillawalker.com/burmese-an-introduction-to-the-literary-style-book-1-cassette.pdf
    • http://www.gorillawalker.com/a-psycholinguistic-approach-to-technology-and-language-learning.pdf
    • http://www.gorillawalker.com/the-oss-in-burma-jungle-war-against-the-japanese-modern.pdf
    • http://www.gorillawalker.com/the-creative-director-alternative-rehearsal-techniques.pdf
    • http://www.gorillawalker.com/easy-jazz-classics-easy-jazz-play-along-vol-3-book.pdf
    • http://www.gorillawalker.com/cengage-advantage-books-human-development-a-life-span-view.pdf
    • http://www.gorillawalker.com/comedy-o-rama-variety-pack-too-more-audio-theater-from.pdf
    • http://www.gorillawalker.com/popular-culture-theory-and-methodology-a-basic-introduction-ray-and.pdf
    • http://www.gorillawalker.com/dragons-rising-requiem-for-dragons-book-3.pdf
    • http://www.gorillawalker.com/us-army-technical-manual-tm-55-3930-660-14-transport.pdf
    • http://www.gorillawalker.com/medikidz-explain-abi-what-s-up-with-tamara-paperback.pdf
    • http://www.gorillawalker.com/surfboarding-in-oceania-its-pre-european-distribution.pdf
    • http://www.gorillawalker.com/teamwork-time-super-stickerific-wonder-pets.pdf
    • http://www.gorillawalker.com/how-to-write-irresistible-query-letters.pdf
    • http://www.gorillawalker.com/mummy-d
    • 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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