Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa87aa768c1489d…

MALICIOUS

PDF

43.8 KB Created: 2018-12-15 20:18:21 +03:00 Authoring application: PDF CoDe 2015.5473 (c) 2002-2015 European Commission
MD5: 691c5bef52e37d89dae531611ab99f23 SHA-1: 073cf68da86fe1cecb0fc1ca6baab5389dbdd69a SHA-256: 2fa87aa768c1489d63a021857f877abfd2fc1aa21a57d274ebc2a4cb6102916b
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, all hosted on the same domain (www.gorillawalker.com). This pattern is indicative of a link farm or SEO poisoning technique, likely intended to drive traffic or potentially host malicious content disguised as legitimate documents. No scripts were extracted, and the document body was unreadable, so the attack pattern is inferred solely from the link farm heuristic.

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/postmodern-sophistry.pdf
    • http://www.gorillawalker.com/banker-to-the-poor-micro-lending-and-the-battle-against.pdf
    • http://www.gorillawalker.com/a-revelation-of-jesus-christ-a-commentary-on-the-book.pdf
    • http://www.gorillawalker.com/poems-on-various-subjects-religious-and-moral-classic-reprint.pdf
    • http://www.gorillawalker.com/finland-biker-s-road-map-set-motoristin-gt-tiekartat.pdf
    • http://www.gorillawalker.com/report-on-the-accident-to-hs748-series-2a-g-atmi.pdf
    • http://www.gorillawalker.com/300-strategies-for-making-real-estate-business-deals-vol-6.pdf
    • http://www.gorillawalker.com/viewpoint-level-2-workbook-b.pdf
    • http://www.gorillawalker.com/famine-and-community-in-mullingar-poor-law-union-1845-1849.pdf
    • http://www.gorillawalker.com/prentice-hall-literature-penguin-edition-readers-notebook-adapted-version-grade.pdf
    • http://www.gorillawalker.com/a-history-of-the-literature-of-adam-and-eve-society.pdf
    • http://www.gorillawalker.com/the-abject-of-desire-the-aestheticization-of-the-unaesthetic-in.pdf
    • http://www.gorillawalker.com/maggie-and-hopey-color-fun-1.pdf
    • http://www.gorillawalker.com/study-abroad-the-book-of-jobe-kindle-edition.pdf
    • http://www.gorillawalker.com/forests-of-india-volume-iv-4-being-the-history-from.pdf
    • http://www.gorillawalker.com/death-by-a-thousand-cuts.pdf
    • http://www.gorillawalker.com/jung-and-the-ancestors-beyond-biography-mending-the-ancestral-web.pdf
    • http://www.gorillawalker.com/pet-girl.pdf
    • http://www.gorillawalker.com/enlightened-office-politics.pdf
    • http://www.gorillawalker.com/inside-the-seashell.pdf
    • http://www.gorillawalker.com/design-execution-and-management-of-medical-device-clinical-trials.pdf
    • http://www.gorillawalker.com/encounters-with-jesus-the-man-in-his-place-and-time.pdf
    • http://www.gorillawalker.com/sky-telescope-s-mirror-image-field-map-of-the-moon.pdf
    • http://www.gorillawalker.com/gray-matter-a-neurosurgeon-discovers-the-power-of-prayer-one.pdf
    • http://www.gorillawalker.com/what-he-hides-what-he-wants-book-seven-an-alpha.pdf
    • http://www.gorillawalker.com/the-red-dagger-the-heretic-arcanum-book-2-kindle-edition.pdf
    • http://www.gorillawalker.com/making-the-rounds-with-oscar-the-inspirational-story-of-a.pdf
    • http://www.gorillawalker.com/papers-on-special-techniques-in-athenian-vases.pdf
    • http://www.gorillawalker.com/return-of-the-warriors-for-string-orchestra-score.pdf
    • http://www.gorillawalker.com/play-easy-recorder-christmas.pdf
    • http://www.gorillawalker.com/the-amazing-amazon-genie-fba-how-to-earn-a-full.pdf
    • http://www.gorillawalker.com/japan-s-agricultural-policy-regime-nissan-institute-routledge-japanese-studies.pdf
    • http://www.gorillawalker.com/a-little-book-of-sloth.pdf
    • http://www.gorillawalker.com/aarboger-fur-nordisk-oldkyndighed-og-histoire-danish-edition.pdf
    • http://www.gorillawalker.com/the-watts-picture-atlas-watts-reference.pdf
    • http://www.gorillawalker.com/mama-played-baseball.pdf
    • http://www.gorillawalker.com/die-gewaltlosen-drama-in-vier-akten-german-edition.pdf
    • http://www.gorillawalker.com/another-hospital-nightmare-ob-gyn-medical-play-erotica.pdf
    • http://www.gorillawalker.com/the-vegan-slow-cooker-cookbook-30-delicious-easy-and-healthy.pdf
    • http://www.gorillawalker.com/loving-instincts.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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