Malicious PDF — malware analysis report

Static analysis result for SHA-256 8555749318ce4598…

MALICIOUS

PDF

43.3 KB Created: 2018-12-11 20:47:50 +03:00 Authoring application: Adobe InDesign CS5 (7.0) (via Acrobat Distiller 9.5.3 (Macintosh))
MD5: 6368e4b62d722c35e6f645d9a27d013c SHA-1: bfc86d2829ae60c92295bdf2febd390bf08c331b SHA-256: 8555749318ce4598f7359137ab7e57f4cd54972af4b95de6cf06228b4508c456
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, likely intended for SEO manipulation or to serve as a distribution point for further malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/from-bootle-to-burma.pdf
    • http://www.gorillawalker.com/childhood-seizures-pediatric-and-adolescent-medicine.pdf
    • http://www.gorillawalker.com/practical-italian-vocal-method-marzials-alto-baritone-kalmus-edition.pdf
    • http://www.gorillawalker.com/how-to-attract-money-using-mind-power.pdf
    • http://www.gorillawalker.com/chester-creek-ravine-haiku.pdf
    • http://www.gorillawalker.com/by-helen-solorzano-northstar-building-skills-for-the-toefl-ibt.pdf
    • http://www.gorillawalker.com/bunny-and-the-grizzly-bear-united-shifter-s-alliance-book.pdf
    • http://www.gorillawalker.com/emma-s-pennsylvania-kitchen-book-1-volume-1.pdf
    • http://www.gorillawalker.com/caress-of-the-cerberus.pdf
    • http://www.gorillawalker.com/tales-of-crossed-destinies-the-modern-turkish-novel-in-a.pdf
    • http://www.gorillawalker.com/complete-idiot-s-guide-to-urban-legends.pdf
    • http://www.gorillawalker.com/film-and-video-art.pdf
    • http://www.gorillawalker.com/drug-abuse-real-teens-real-issues.pdf
    • http://www.gorillawalker.com/despu-s-de-la-infidelidad-sanando-el-dolor-y-restableciendo.pdf
    • http://www.gorillawalker.com/whitewater-rapture-a-romance-graphic-novel.pdf
    • http://www.gorillawalker.com/my-wife-doesn-t-love-me-any-more-the-love.pdf
    • http://www.gorillawalker.com/excel-modeling-in-corporate-finance-5th-edition.pdf
    • http://www.gorillawalker.com/karl-marx-and-world-literature.pdf
    • http://www.gorillawalker.com/lewd-women-and-wicked-witches-a-study-in-the-dynamics.pdf
    • http://www.gorillawalker.com/blues-rock-songbook-guitar-play-along-volume-14-guitar-play.pdf
    • http://www.gorillawalker.com/field-guide-to-medicinal-wild-plants-2nd-edition.pdf
    • http://www.gorillawalker.com/oz-behind-these-walls-the-journal-of-augustus-hill-by.pdf
    • http://www.gorillawalker.com/the-summer-shack-cookbook-the-complete-guide-to-shore-food.pdf
    • http://www.gorillawalker.com/a-life-uncorked.pdf
    • http://www.gorillawalker.com/life-guide-to-digital-photography-everything-you-need-to-shoot.pdf
    • http://www.gorillawalker.com/the-secret-files-of-sherlock-holmes-kindle-edition.pdf
    • http://www.gorillawalker.com/my-cool-caravan-an-inspirational-guide-to-retro-style-caravans.pdf
    • http://www.gorillawalker.com/my-father-s-kites.pdf
    • http://www.gorillawalker.com/the-nature-of-supreme-court-power.pdf
    • http://www.gorillawalker.com/faces-and-places-from-avalon-s-past.pdf
    • http://www.gorillawalker.com/bridge-disasters-in-america-the-cause-and-the-remedy-kindle.pdf
    • http://www.gorillawalker.com/edinburgh-illustrated-map.pdf
    • http://www.gorillawalker.com/obesity-not-diet-seems-to-boost-risk-for-gerd-and.pdf
    • http://www.gorillawalker.com/jordani-bruni-nolani-opera-latine-conscripta-publicis-sumptibus-edita-volume.pdf
    • http://www.gorillawalker.com/american-modernism-at-the-art-institute-of-chicago-from-world.pdf
    • http://www.gorillawalker.com/tallulah-and-the-teenstars-the-adventures-of-tallulah-gosh-kindle.pdf
    • http://www.gorillawalker.com/power-faith-and-fantasy-america-in-the-middle-east-1776.pdf
    • http://www.gorillawalker.com/the-psychology-of-fatigue-work-effort-and-control.pdf
    • http://www.gorillawalker.com/georges-braque-a-life.pdf
    • http://www.gorillawalker.com/between-heaven-and-earth-a-journey-through-christian-ethiopia.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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