Malicious PDF — malware analysis report

Static analysis result for SHA-256 249004786e70660d…

MALICIOUS

PDF

42.3 KB Created: 2018-11-23 21:03:40 +03:00 Authoring application: PrimoPDF http://www.primopdf.com (via Nitro PDF PrimoPDF)
MD5: 0e33454d72a27c0d27869fa2d33bafc1 SHA-1: bd35c398c8795d9b616c3383d1d29707fa7c7dd3 SHA-256: 249004786e70660d465c9929575fc8ad82eeb36a19fb29836f3f732c953c2ab1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a critical heuristic for containing a mass external PDF link farm, with 32 links pointing to the domain 'gorillawalker.com'. This technique is often used for SEO manipulation, aiming to artificially boost search engine rankings for the linked content. No scripts were extracted, and the document body was unreadable, limiting further analysis of the immediate payload. The primary attack pattern identified is the creation of a link farm for SEO poisoning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/active-calculus.pdf
    • http://www.gorillawalker.com/philip-roth-contemporary-american-and-canadian-writers-mup.pdf
    • http://www.gorillawalker.com/astna-patient-transport-principles-and-practice-air-surface-patient-transport.pdf
    • http://www.gorillawalker.com/the-preliminary-practice-of-altar-set-up-water-bowl-offerings.pdf
    • http://www.gorillawalker.com/science-big-bubblefacts.pdf
    • http://www.gorillawalker.com/leadership-skills-for-peer-group-facilitators.pdf
    • http://www.gorillawalker.com/viking-lust-3-the-king-s-ritual.pdf
    • http://www.gorillawalker.com/basic-goals-in-spelling-book-4.pdf
    • http://www.gorillawalker.com/cavalier-king-charles-spaniel-puppies-2015-mini-7x7-multilingual-edition.pdf
    • http://www.gorillawalker.com/the-tools-techniques-of-estate-planning-15th-edition.pdf
    • http://www.gorillawalker.com/one-of-a-kind.pdf
    • http://www.gorillawalker.com/engaged-journalism-connecting-with-digitally-empowered-news-audiences-columbia-journalism.pdf
    • http://www.gorillawalker.com/orthodox-witness-today.pdf
    • http://www.gorillawalker.com/charles-w-gordon-ralph-connor-from-black-rock-to-regina.pdf
    • http://www.gorillawalker.com/dialogues-with-pain-internal-body-conversations-that-resolve-suffering.pdf
    • http://www.gorillawalker.com/encyclopedia-of-organic-sustainable-and-local-food.pdf
    • http://www.gorillawalker.com/nursing-mental-diseases.pdf
    • http://www.gorillawalker.com/works-of-victor-hugo-one-volume-edition.pdf
    • http://www.gorillawalker.com/from-pom-poms-to-prison.pdf
    • http://www.gorillawalker.com/alquimia-de-las-nueve-dimensiones-alquemy-of-nine-dimensions-spanish.pdf
    • http://www.gorillawalker.com/word-processing-applications-and-exercises-prentice-hall-word-information-processing.pdf
    • http://www.gorillawalker.com/word-family-tales-ug-billy-the-bug-s-new-jug.pdf
    • http://www.gorillawalker.com/chinese-secrets-of-health-and-longevity-audiobook-illustrated-audio-cassette.pdf
    • http://www.gorillawalker.com/old-enough-to-know-updated-edition.pdf
    • http://www.gorillawalker.com/remembrance-of-things-past-swann-146-s-way.pdf
    • http://www.gorillawalker.com/introducing-economics-a-graphic-guide.pdf
    • http://www.gorillawalker.com/report-of-explorations-across-the-great-basin-of-the-territory.pdf
    • http://www.gorillawalker.com/you-can-negotiate-anything-publisher-bantam.pdf
    • http://www.gorillawalker.com/dangerous-tastes-the-story-of-spices.pdf
    • http://www.gorillawalker.com/student-s-solutions-manual-to-accompany-calculus-multivariable-early-transcendental.pdf
    • http://www.gorillawalker.com/encounter-the-cross-meditations-on-the-seven-last-words-of.pdf
    • http://www.gorillawalker.com/atomic-many-body-theory-springer-series-in-chemical-physics.pdf
    • http://www.gorillawalker.com/project-finance-in-developing-countries-ifc-s-lessons-of-experience.pdf
    • http://www.gorillawalker.com/the-crime-of-cuba-american-imperialism.pdf
    • http://www.gorillawalker.com/sexual-reflexology-activating-the-taoist-points-of-love.pdf
    • http://www.gorillawalker.com/simcity-buildit-cheats-hints-tips-help-walkthroughs-more-kindle-edition.pdf
    • http://www.gorillawalker.com/the-ultimate-frontier.pdf
    • http://www.gorillawalker.com/what-happens-to-your-food-flip-flaps.pdf
    • http://www.gorillawalker.com/corey-the-atherton-pack-book-3-kindle-edition.pdf
    • http://www.gorillawalker.com/chopin-valse-op-70-no-2-instantly-download-and-print.pdf
    • http://www.primopdf.com
    • http://www.gorillawalker.com/basic-goals-in-s
    • 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#
    +1 more URL(s)

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