Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca90a5b4e0096f7b…

MALICIOUS

PDF

44.6 KB Created: 2019-02-14 08:13:33 +03:00 Authoring application: Adobe InDesign CS (3.0.1) (via Adobe PDF Library 6.0)
MD5: f6cee6bd79428d6ef6aa011f5c6ca765 SHA-1: acc33568224efec47bbfcc104ea9c0f481ddf4d7 SHA-256: ca90a5b4e0096f7b5783acef6c077a722e82789e5f82d189fcb6e14e2b7174da
90 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files on the same domain. This suggests a link farm or SEO manipulation tactic. The ML classifier also flagged the PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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/why-easter.pdf
    • http://www.gorillawalker.com/multi-level-money-the-complete-guide-to-generating-closing-working.pdf
    • http://www.gorillawalker.com/agricultural-biotechnology-background-and-recent-issues-kindle-edition.pdf
    • http://www.gorillawalker.com/diario-de-sesiones-de-la-c-mara-de-senadores-de.pdf
    • http://www.gorillawalker.com/summertime-porgy-and-bess-piano-vocal-guitar.pdf
    • http://www.gorillawalker.com/ultra-violet-s-pickled-egg-cookbook-plucky-prescripts-from-the.pdf
    • http://www.gorillawalker.com/excentricos-ingleses-the-english-eccentrics-spanish-edition.pdf
    • http://www.gorillawalker.com/plymouth-and-launceston-tavistock-and-looe-landranger-maps-201-os.pdf
    • http://www.gorillawalker.com/keep-me.pdf
    • http://www.gorillawalker.com/i-go-to-extremes-the-billy-joel-story.pdf
    • http://www.gorillawalker.com/hershey-s-milk-chocolate-weights-and-measures-book.pdf
    • http://www.gorillawalker.com/evaluability-assessment-improving-evaluation-quality-and-use.pdf
    • http://www.gorillawalker.com/speak-don-t-freak-six-secrets-to-master-the-fear.pdf
    • http://www.gorillawalker.com/tortillas-duras-ni-pa-frijoles-alcanza-spanish-edition.pdf
    • http://www.gorillawalker.com/love-sex-lies-part-6-love-me-some-him.pdf
    • http://www.gorillawalker.com/fragments-of-lichtenberg-french-literature-series.pdf
    • http://www.gorillawalker.com/desert-gardens.pdf
    • http://www.gorillawalker.com/real-fast-indian-food-more-than-100-simple-delicious-recipes.pdf
    • http://www.gorillawalker.com/inviting-transformation-presentational-speaking-for-a-changing-world.pdf
    • http://www.gorillawalker.com/the-business-of-gaming-economic-and-management-issues-institute-of.pdf
    • http://www.gorillawalker.com/atlantic-ocean-oceans-of-the-world.pdf
    • http://www.gorillawalker.com/health-and-health-care-delivery-in-canada-pageburst-e-book.pdf
    • http://www.gorillawalker.com/redeemer-of-the-realm-book-two-of-the-ravanmark-saga.pdf
    • http://www.gorillawalker.com/der-einfluss-selektiver-serotonin-wiederaufnahmehemmer-ssri-auf-depressive-und-zwanghafte.pdf
    • http://www.gorillawalker.com/environmental-change-and-agricultural-sustainability-in-the-mekong-delta-advances.pdf
    • http://www.gorillawalker.com/bradley-s-melodies-plus-30-pops-for-all-musicians-beginner.pdf
    • http://www.gorillawalker.com/2011-harry-potter-and-the-deathly-hallows-poster.pdf
    • http://www.gorillawalker.com/basic-and-clinical-pharmacology-11th-eleventh-edition-bymasters.pdf
    • http://www.gorillawalker.com/i-m-still-here-confessions-of-a-sex-kitten.pdf
    • http://www.gorillawalker.com/micro-fliers-seventeen-model-planes-to-make-and-fly-mini.pdf
    • http://www.gorillawalker.com/horowitz-vlsi-sys-demo.pdf
    • http://www.gorillawalker.com/structural-geology-an-introduction-to-geometrical-techniques-4th-fourth-edition.pdf
    • http://www.gorillawalker.com/vocabulaire-fran-ais-espagnol-pour-l-autoformation-5000-mots-french.pdf
    • http://www.gorillawalker.com/madeline-s-rescue.pdf
    • http://www.gorillawalker.com/the-new-york-times-easy-crossword-puzzles-omnibus-volume-10.pdf
    • http://www.gorillawalker.com/call-of-duty-modern-warfare-mobilized-ds-instruction-booklet-nintendo.pdf
    • http://www.gorillawalker.com/kaplan-gre-biology-4th-ed.pdf
    • http://www.gorillawalker.com/it-s-over-the-status-updates-series-volume-2.pdf
    • http://www.gorillawalker.com/column-inches-everyday-observations-of-a-gay-pragmatist.pdf
    • http://www.gorillawalker.com/ornamental-horticulture-principles-and-practices.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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