Malicious PDF — malware analysis report

Static analysis result for SHA-256 447e0788943389b0…

MALICIOUS

PDF

42.8 KB Created: 2018-11-23 21:03:43 +03:00 Authoring application: PageMaker 7.0 (via Acrobat Distiller 7.0 (Windows))
MD5: e7e54115215329afbe62793eb8409f21 SHA-1: b97abf10e02e69f5e1c25143a182c520e88f7438 SHA-256: 447e0788943389b09c192d458d99a4ecb90b0f9c4fa42450e9d88ec95c3b0def
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of external links, identified as a 'link farm' by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS classifier also flagged the document with high confidence. The primary attack pattern involves directing users to a multitude of PDF files hosted on www.gorillawalker.com, likely as a form of SEO manipulation or to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/tae-kwon-do-step-into-reading.pdf
    • http://www.gorillawalker.com/the-spoken-word-and-the-work-of-interpretation-conduct-and.pdf
    • http://www.gorillawalker.com/british-drama-since-shaw-a-chicago-classic.pdf
    • http://www.gorillawalker.com/kansas-city-cuisine-a-sampling-of-restaurants-their-recipes.pdf
    • http://www.gorillawalker.com/unconditional-confidence-instructions-for-meeting-any-experience-with-trust-and.pdf
    • http://www.gorillawalker.com/does-god-need-the-church-toward-a-theology-of-the.pdf
    • http://www.gorillawalker.com/cities-of-the-global-south-reader-routledge-urban-reader-series.pdf
    • http://www.gorillawalker.com/a-photographer-s-awesome-book-of-notes-lists-ideas-featuring.pdf
    • http://www.gorillawalker.com/cost-accounting-standards-board-regulations-as-of-january-2008.pdf
    • http://www.gorillawalker.com/hagstrom-morris-somerset-counties-atlas-large-scale-edition.pdf
    • http://www.gorillawalker.com/ageless-memory-the-memory-expert-s-prescription-for-a-razor.pdf
    • http://www.gorillawalker.com/alive-extraordinary-stories-of-ordinary-people-who-survived-deadly-tornadoes.pdf
    • http://www.gorillawalker.com/adoniram-judson-god-s-man-in-burma.pdf
    • http://www.gorillawalker.com/the-nuts-and-bolts-of-college-writing.pdf
    • http://www.gorillawalker.com/major-problems-in-american-urban-and-suburban-history-major-problems.pdf
    • http://www.gorillawalker.com/30-day-paleo-diet-slow-cooker-recipe-cookbook-delicious-easy.pdf
    • http://www.gorillawalker.com/tesoros-de-mi-ba-l-spanish-edition.pdf
    • http://www.gorillawalker.com/electric-power-systems-advanced-forecasting-techniques-and-optimal-generation-scheduling.pdf
    • http://www.gorillawalker.com/methods-for-estimation-and-inference-in-modern-econometrics.pdf
    • http://www.gorillawalker.com/atlas-der-morphologischen-plazentadiagnostik-german-edition.pdf
    • http://www.gorillawalker.com/bonding-and-structures-structural-principles-in-inorganic-and-organic-chemistry.pdf
    • http://www.gorillawalker.com/a-concise-introduction-to-mixed-methods-research-sage-mixed-methods.pdf
    • http://www.gorillawalker.com/lemuria-atlantis-studying-the-past-to-survive-the-future.pdf
    • http://www.gorillawalker.com/accounting-information-systems-controls-and-processes.pdf
    • http://www.gorillawalker.com/biology-of-freshwater-crayfish.pdf
    • http://www.gorillawalker.com/how-god-wants-us-to-worship-him.pdf
    • http://www.gorillawalker.com/strengthened-to-serve-2-corinthians-fisherman-bible-studyguides.pdf
    • http://www.gorillawalker.com/the-official-underground-2012-doomsday-survival-handbook.pdf
    • http://www.gorillawalker.com/liquid-gas-carrier-register-1987.pdf
    • http://www.gorillawalker.com/metaphysics-a-very-short-introduction-very-short-introductions.pdf
    • http://www.gorillawalker.com/william-d-pawley-the-extraordinary-life-of-the-adventurer-entrepreneur.pdf
    • http://www.gorillawalker.com/mercy-watson-to-the-rescue.pdf
    • http://www.gorillawalker.com/santa-biblia-la-biblia-de-las-americas-lbla-nasb-spanish.pdf
    • http://www.gorillawalker.com/the-battle-of-cannae-the-history-and-legacy-of-ancient.pdf
    • http://www.gorillawalker.com/secrets-of-the-storm-galveston-hurricane-mystery.pdf
    • http://www.gorillawalker.com/i-m-sorry-to-hear-that-real-life-responses-to.pdf
    • http://www.gorillawalker.com/rail-steam-and-speed-the-rocket-and-the-birth-of.pdf
    • http://www.gorillawalker.com/saucy-tomatoes-and-blueberry-thrills.pdf
    • http://www.gorillawalker.com/givens-shirley-adventures-in-violinland-book-1d-halfway-up-fiddle.pdf
    • http://www.gorillawalker.com/antenatal-and-postnatal-depression.pdf
    • http://www.gorillawalker.com/cities-of-the-global-south-reader-routledge-urban-reader-se
    • 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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