Malicious PDF — malware analysis report

Static analysis result for SHA-256 a175ac4de9193298…

MALICIOUS

PDF

32.1 KB Created: 2019-12-14 03:53:26 +03:00 Authoring application: UnknownApplication (via XEP 4.4 build 20050610)
MD5: 4ef042e90df9825f80bc05376c7f0779 SHA-1: 29de85a8244a2b79dd8b746c965b68c9408518e4 SHA-256: a175ac4de919329855409393e17191d66d85e5c1933cce9c5d1e4cccdd56188d
60 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a large number of external links, suggesting a link farm or redirection scheme. The embedded URLs all point to the same domain, www.gorillawalker.com, with various PDF filenames. The document body is heavily obfuscated and does not provide clear textual content, but the presence of numerous external links is the primary indicator of malicious intent. This pattern is often used to manipulate search engine rankings or to distribute further malicious content.

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/improvising-with-agile-how-to-find-creativity-from-constraints.pdf
    • http://www.gorillawalker.com/the-palgrave-handbook-of-eu-asia-relations.pdf
    • http://www.gorillawalker.com/national-geographic-december-1952-paperback.pdf
    • http://www.gorillawalker.com/news-that-matters-television-and-american-opinion-updated-edition-chicago.pdf
    • http://www.gorillawalker.com/the-learned-banqueters-volume-vi-books-12-13-594b-loeb.pdf
    • http://www.gorillawalker.com/eldorado-a-climber-s-route-guide.pdf
    • http://www.gorillawalker.com/i-meant-to-tell-you.pdf
    • http://www.gorillawalker.com/the-cancer-atlas.pdf
    • http://www.gorillawalker.com/fm-3-04-500-1-500-army-aviation-maintenance.pdf
    • http://www.gorillawalker.com/me-and-the-three-black-guys-multiple-partners-erotica-alpha.pdf
    • http://www.gorillawalker.com/the-narrow-road-to-the-deep-north-unabridged-audible-audio.pdf
    • http://www.gorillawalker.com/progressive-stretch.pdf
    • http://www.gorillawalker.com/anil-by-ridjal-noor-the-study-guide.pdf
    • http://www.gorillawalker.com/mobile-application-development-with-sms-and-the-sim-toolkit.pdf
    • http://www.gorillawalker.com/you-know-when-the-men-are-gone.pdf
    • http://www.gorillawalker.com/international-handbook-of-children-media-and-culture.pdf
    • http://www.gorillawalker.com/silent-doomsday-the-next-generation-of-warfare.pdf
    • http://www.gorillawalker.com/this-war-we-re-in.pdf
    • http://www.gorillawalker.com/de-transitu-mariae-apocrypha-aethiopice-i-aeth-66-corpus-scriptorum.pdf
    • http://www.gorillawalker.com/three-gospels.pdf
    • http://www.gorillawalker.com/2012-2013-basic-and-clinical-science-course-section-6-pediatric.pdf
    • http://www.gorillawalker.com/assessment-management-of-central-auditory-processing-disorders-in-the-educational.pdf
    • http://www.gorillawalker.com/ghosts-and-journeys-piper.pdf
    • http://www.gorillawalker.com/rock-your-network-marketing-business-how-to-become-a-network.pdf
    • http://www.gorillawalker.com/companion-book-for-translators-and-interpreters-construction-1000-key-english.pdf
    • http://www.gorillawalker.com/linear-optimization-problems-with-inexact-data.pdf
    • http://www.gorillawalker.com/time-is-running-out-the-handwriting-is-on-the-wall.pdf
    • http://www.gorillawalker.com/aprende-ya-a-tocar-guitarra.pdf
    • http://www.gorillawalker.com/fortune-cookie-karma-kindle-edition.pdf
    • http://www.gorillawalker.com/sacred-food-cooking-for-spiritual-nourishment.pdf
    • http://www.gorillawalker.com/gr-adoration-blue-pen.pdf
    • http://www.gorillawalker.com/operation-desert-shield-desert-storm-chronology-and-fact-book.pdf
    • http://www.gorillawalker.com/the-use-of-contrast-coefficients-supplement-to-mcneil-kelly-and.pdf
    • http://www.gorillawalker.com/cuckoo-the-crazy-bird-books-for-kids-ages-6-10.pdf
    • http://www.gorillawalker.com/speak-the-culture-spain.pdf
    • http://www.gorillawalker.com/the-northmen-s-fury-a-history-of-the-viking-world.pdf
    • http://www.gorillawalker.com/worlitz-ein-bildband-in-deutscher-und-englischer-sprache-german-edition.pdf
    • http://www.gorillawalker.com/the-virtue-of-suspense-the-life-and-works-of-charlotte.pdf
    • http://www.gorillawalker.com/baedeker-rakousko-rakusko-austria-road-map.pdf
    • http://www.gorillawalker.com/the-velvet-prison-artists-under-state-socialism.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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