Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f77e20faa2fa4e7…

MALICIOUS

PDF

31.7 KB Created: 2020-01-03 22:19:52 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.4)
MD5: 4dcf9975e3a2b8a47d61e1b6082dd594 SHA-1: f6d4766d1282f8af86fee24c8319a4d373cc8363 SHA-256: 1f77e20faa2fa4e790503ad4a0c19829d7f4e7cd470c43e2ff4778b7c0479e00
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links pointing to external PDF documents on the domain www.gorillawalker.com. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malware or phish for information. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/a-cappella-songs-for-treble-chorus-sa-ssa-a-cappel.pdf
    • http://www.gorillawalker.com/bathing-spaces-designs-for-pampering-body-and-soul.pdf
    • http://www.gorillawalker.com/travels-in-the-philippines-paperback-2002-author-fedor-jagor.pdf
    • http://www.gorillawalker.com/lawrence-county-press-1888-1894.pdf
    • http://www.gorillawalker.com/squeezed-250-juices-smoothies-and-spritzers.pdf
    • http://www.gorillawalker.com/the-alamo.pdf
    • http://www.gorillawalker.com/dublin-s-trade-in-books-1550-1800-lyell-lectures-in.pdf
    • http://www.gorillawalker.com/ethics-are-more-important-than-r.pdf
    • http://www.gorillawalker.com/field-guide-to-the-birds-of-colombia-1st-edition.pdf
    • http://www.gorillawalker.com/proud-past-bright-future-one-hundred-years-of-canadian-women.pdf
    • http://www.gorillawalker.com/a-history-of-the-peace-conference-of-paris-6-volumes.pdf
    • http://www.gorillawalker.com/la-ecologia-ciencias-de-glencoe-spanish-edition.pdf
    • http://www.gorillawalker.com/sport-and-race-key-texts-in-sports-studies.pdf
    • http://www.gorillawalker.com/sneaking-into-the-step-s-bedroom-older-man-younger-woman.pdf
    • http://www.gorillawalker.com/the-ab-real-book-cd-jazz-trumpet-cd-level-grade.pdf
    • http://www.gorillawalker.com/environmental-crime-a-reader.pdf
    • http://www.gorillawalker.com/the-japanese-spa-a-guide-to-japan-s-finest-ryokan.pdf
    • http://www.gorillawalker.com/art-maui-bans-installation-art.pdf
    • http://www.gorillawalker.com/the-white-architects-of-black-education-ideology-and-power-in.pdf
    • http://www.gorillawalker.com/the-everything-guide-to-careers-in-law-enforcement-by-bagley.pdf
    • http://www.gorillawalker.com/wunder-und-wunderbares-german-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-art-of-fullmetal-alchemist.pdf
    • http://www.gorillawalker.com/international-production-sharing-a-case-for-coherent-policy-framework-discussion.pdf
    • http://www.gorillawalker.com/the-time-traveler-s-guide-to-elizabethan-england-by-mortimer.pdf
    • http://www.gorillawalker.com/a-walk-in-the-night-and-other-stories.pdf
    • http://www.gorillawalker.com/brick-vehicles-amazing-air-land-and-sea-machines-to-build.pdf
    • http://www.gorillawalker.com/unix-programming-environment.pdf
    • http://www.gorillawalker.com/building-financial-models-with-microsoft-excel-a-guide-for-business.pdf
    • http://www.gorillawalker.com/bayou-folk.pdf
    • http://www.gorillawalker.com/adirondack-cabin-country-york-state-books.pdf
    • http://www.gorillawalker.com/high-sticking-scirocco-drama.pdf
    • http://www.gorillawalker.com/a-visual-analogy-guide-to-chemistry.pdf
    • http://www.gorillawalker.com/western-ranch-sticker-activity-book-dover-little-activity-books.pdf
    • http://www.gorillawalker.com/alfresco-4-enterprise-content-management-implementation-kindle-edition.pdf
    • http://www.gorillawalker.com/the-world-of-charles-dickens-the-life-times-and-work.pdf
    • http://www.gorillawalker.com/the-autograph-collector-a-new-guide.pdf
    • http://www.gorillawalker.com/interior-verse-plus-pose-prose-poems-kindle-edition.pdf
    • http://www.gorillawalker.com/handbook-of-ecological-parameters-and-ecotoxicology.pdf
    • http://www.gorillawalker.com/les-iles-du-capricorne.pdf
    • http://www.gorillawalker.com/enoch-the-ethiopian-the-lost-prophet-of-the-bible-greater.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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