Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab6357b1f6f635a…

MALICIOUS

PDF

43.4 KB Created: 2018-12-03 17:45:55 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 4.0 para Windows)
MD5: 7c88bae38a0d8ade54d47c4bbbbd7bbc SHA-1: ca0635981a94cc03aa0a2341cfc357c05e45f8ac SHA-256: eab6357b1f6f635ab13c3585446244914e69dc5b38d2672ad3c910c07f7d0259
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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this document as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests an attempt to drive traffic or potentially host malicious content indirectly. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/reproductive-biology-and-phylogeny-of-fishes-agnathans-and-bony-fishes.pdf
    • http://www.gorillawalker.com/pathways-to-competence-for-young-children-a-parenting-program.pdf
    • http://www.gorillawalker.com/thermodynamics-an-advanced-textbook-for-chemical-engineers.pdf
    • http://www.gorillawalker.com/my-daughter-s-addiction-a-thief-in-the-family-hardwired.pdf
    • http://www.gorillawalker.com/the-myth-of-sisyphus-and-other-essays-a-vintage-book.pdf
    • http://www.gorillawalker.com/one-million-steps-a-marine-platoon-at-war.pdf
    • http://www.gorillawalker.com/why-usually-honest-people-steal-understanding-treating-and-stopping-nonsensical.pdf
    • http://www.gorillawalker.com/dangerous-weapons-the-sicilian-dazzle-your-opponents.pdf
    • http://www.gorillawalker.com/wrecked-studs-in-spurs.pdf
    • http://www.gorillawalker.com/she-s-come-undone-turtleback-school-library-binding-edition.pdf
    • http://www.gorillawalker.com/the-new-breed-ii.pdf
    • http://www.gorillawalker.com/medical-surgical-care-planning.pdf
    • http://www.gorillawalker.com/how-to-be-a-better-boyfriend-the-relationship-manual-for.pdf
    • http://www.gorillawalker.com/black-mambas-nature-s-children.pdf
    • http://www.gorillawalker.com/sins-of-eden-the-ascension-series-volume-7.pdf
    • http://www.gorillawalker.com/slangalicious-where-we-got-that-crazy-lingo.pdf
    • http://www.gorillawalker.com/dream-of-jujube-trees-recollection-of-singapore-and-plantation-in.pdf
    • http://www.gorillawalker.com/journey-to-a-war.pdf
    • http://www.gorillawalker.com/historia-de-la-mafia-cosa-nostra-camorra-y-n-dranghetta.pdf
    • http://www.gorillawalker.com/beautiful-city-of-barcelona-photo-gallery-kindle-edition.pdf
    • http://www.gorillawalker.com/new-ks2-maths-sat-buster-number-ratio-algebra-for-the.pdf
    • http://www.gorillawalker.com/napoleon-and-his-marshals-two-volumes-in-one.pdf
    • http://www.gorillawalker.com/darker-than-amber-a-travis-mcgee-novel.pdf
    • http://www.gorillawalker.com/strategies-for-change-logical-incrementalism-the-irwin-series-in-management.pdf
    • http://www.gorillawalker.com/religions-of-the-world-shinto-religions-of-the-world.pdf
    • http://www.gorillawalker.com/centauri-knights-d20-big-eyes-small-mouth-rpg-supplement.pdf
    • http://www.gorillawalker.com/here-comes-the-sun-a-journey-to-adoption-in-8.pdf
    • http://www.gorillawalker.com/thermodynamics-for-dummies.pdf
    • http://www.gorillawalker.com/les-diaboliques-she-devils-empire-of-the-senses.pdf
    • http://www.gorillawalker.com/ngeo-pocket-guide-to-backyard-wilderness.pdf
    • http://www.gorillawalker.com/1635-a-parcel-of-rogues-the-ring-of-fire.pdf
    • http://www.gorillawalker.com/differential-rate-fertilizer-applicator-design-and-evaluation-increasing-fertilizer-use.pdf
    • http://www.gorillawalker.com/by-michael-sullivan-algebra-and-trigonometry-eighth-8th-edition.pdf
    • http://www.gorillawalker.com/good-health-is-easy-it-s-being-sick-that-s.pdf
    • http://www.gorillawalker.com/women-in-the-vanishing-cloister-organizational-decline-in-catholic-religious.pdf
    • http://www.gorillawalker.com/knitted-toys.pdf
    • http://www.gorillawalker.com/what-answer.pdf
    • http://www.gorillawalker.com/confederate-finance.pdf
    • http://www.gorillawalker.com/introduction-to-set-theory.pdf
    • http://www.gorillawalker.com/fishing-the-flats-salt-water-sportsman-library.pdf
    • http://www.gorillawalker.com/why-usually-honest-people-steal-understanding-trea
    • 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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