Malicious PDF — malware analysis report

Static analysis result for SHA-256 b75e4275d9e74b03…

MALICIOUS

PDF

42.2 KB Created: 2018-12-07 18:27:32 +03:00 Authoring application: Acrobat Distiller 5.0 (Windows) (via Adobe PDF Library 9.9)
MD5: 64227ce13b9687a51fd71eb3446aa98f SHA-1: 75646891475d5de0bfc8c2c2405daaf7f0fa9109 SHA-256: b75e4275d9e74b030a65dc457100098b0d0ad3bd14e9c0f0694b644e746ada9b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a critical heuristic for containing a mass external PDF link farm, with 32 links identified. The ML classifier also assigned a high probability of maliciousness. While no scripts were extracted, the sheer volume of external links suggests an attempt to either distribute further malicious content or engage in SEO manipulation for malicious purposes. The document body was truncated and unreadable, preventing a more specific analysis of its lure.

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/anatomy-for-strength-and-fitness-training-for-speed-and-sport.pdf
    • http://www.gorillawalker.com/deeds-for-california-real-estate-5th-edition.pdf
    • http://www.gorillawalker.com/the-log-from-the-sea-of-cortez-the-narrative-portion.pdf
    • http://www.gorillawalker.com/bad-girls-of-the-bible-workbook.pdf
    • http://www.gorillawalker.com/external-sourcing-outsourcing-of-business-you-do-chinese-edition.pdf
    • http://www.gorillawalker.com/metapolitics-radical-thinkers.pdf
    • http://www.gorillawalker.com/rabindranath-tagore-an-illustrated-life.pdf
    • http://www.gorillawalker.com/top-10-of-everything-2010-discover-more-than-just-the.pdf
    • http://www.gorillawalker.com/re-labeling-linguistic-inquiry-monographs.pdf
    • http://www.gorillawalker.com/science-versus-crime-essentials-of-forensic-science.pdf
    • http://www.gorillawalker.com/airbus-the-complete-story.pdf
    • http://www.gorillawalker.com/from-quarks-to-black-holes-interviewing-the-universe.pdf
    • http://www.gorillawalker.com/across-the-rivers-of-portugal-a-journey-on-foot-from.pdf
    • http://www.gorillawalker.com/analytic-function-theory-volume-ii.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-the-taryag-mitzvoth-vol-1.pdf
    • http://www.gorillawalker.com/welcher-pilz-ist-das-170-pilze-einfach-bestimmen.pdf
    • http://www.gorillawalker.com/valentines-day-recipes-quick-and-easy-gourmet-food-to-set.pdf
    • http://www.gorillawalker.com/arquitectura-ecologica-spanish-edition.pdf
    • http://www.gorillawalker.com/delega-if-you-want-it-done-right-you-don-t.pdf
    • http://www.gorillawalker.com/histoires-d-une-mer-au-sahara-utopies-et-politiques-collection.pdf
    • http://www.gorillawalker.com/the-making-of-a-bestseller-success-stories-from-authors-and.pdf
    • http://www.gorillawalker.com/scud-the-disposable-assassin-the-whole-shebang-scud-the-disposable.pdf
    • http://www.gorillawalker.com/how-images-think.pdf
    • http://www.gorillawalker.com/problem-solving-survival-guide-volume-ii-chapters-15-24-to.pdf
    • http://www.gorillawalker.com/molly-moon-micky-minus-the-mind-machine.pdf
    • http://www.gorillawalker.com/from-the-pinnacle-of-the-temple.pdf
    • http://www.gorillawalker.com/the-dancing-goddesses-folklore-archaeology-and-the-origins-of-european.pdf
    • http://www.gorillawalker.com/freud-in-the-pampas-the-emergence-and-development-of-a.pdf
    • http://www.gorillawalker.com/reservation-road-vintage-contemporaries.pdf
    • http://www.gorillawalker.com/brill-s-encyclopedia-of-hinduism-volume-two-handbook-of-oriental.pdf
    • http://www.gorillawalker.com/the-long-defeat-cultural-trauma-memory-and-identity-in-japan.pdf
    • http://www.gorillawalker.com/botanical-pesticides-in-the-management-of-post-harvest-fruit-diseases.pdf
    • http://www.gorillawalker.com/as-habl-zaratustra-el-manga-spanish-edition.pdf
    • http://www.gorillawalker.com/legal-opinions-concerning-the-church-of-england.pdf
    • http://www.gorillawalker.com/street-art-of-the-new-egypt-calendar-2013.pdf
    • http://www.gorillawalker.com/play-doh-my-first-100-words-on-the-move.pdf
    • http://www.gorillawalker.com/message-on-the-wind-a-spiritual-odyssey-on-the-northern.pdf
    • http://www.gorillawalker.com/cambios-medicos-y-sociales-en-una-comunidad-maya-tzeltal-coleccion.pdf
    • http://www.gorillawalker.com/nouveau-guide-de-la-ville-de-florence-et-ses-environs.pdf
    • http://www.gorillawalker.com/applied-mathematical-and-physical-formulas-pocket-reference.pdf
    • http://www.gorillawalker.com/bad-girls-of-the-bible-work
    • 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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