Malicious PDF — malware analysis report

Static analysis result for SHA-256 94c309634db69831…

MALICIOUS

PDF

41.6 KB Created: 2018-11-21 20:53:22 +03:00 Authoring application: www.freepdfconvert.com (via http://www.freepdfconvert.com)
MD5: 4816d952c5a14efd2dccc40b8c176dc3 SHA-1: b4951e607258c26d906fc24be74021ba97e43ce0 SHA-256: 94c309634db69831ead7013c28cd8dc1e3d4d5bdcd171bd0344d98a5fc23be98
60 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files on the domain www.gorillawalker.com. This is indicative of a link farm or SEO manipulation tactic. While no malicious scripts were extracted, the sheer volume of links and the heuristic firing suggest a malicious intent to drive traffic or distribute further content. The document body is heavily obfuscated and does not provide clear textual clues.

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/finally-found-you-tempting-signs.pdf
    • http://www.gorillawalker.com/steck-vaughn-strategies-for-success-student-workbook-level-f-math.pdf
    • http://www.gorillawalker.com/vacation-work-overseas-summer-jobs-2000-summer-jobs-worldwide.pdf
    • http://www.gorillawalker.com/by-the-hand-of-mormon-scenes-from-the-land-of.pdf
    • http://www.gorillawalker.com/r-kompakt-der-schnelle-einstieg-in-die-datenanalyse-springer-lehrbuch.pdf
    • http://www.gorillawalker.com/ship-of-gold-in-the-deep-blue-sea.pdf
    • http://www.gorillawalker.com/fatigue-and-fracture-mechanics-volume-37.pdf
    • http://www.gorillawalker.com/lent-a-guide-to-the-eucharist-and-hours-liturgical-seasons.pdf
    • http://www.gorillawalker.com/the-gates-a-samuel-johnson-tale-the-samuel-johnson-series.pdf
    • http://www.gorillawalker.com/sequences-sequencing-colorcards.pdf
    • http://www.gorillawalker.com/a-dictionary-of-english-folklore-oxford-paperback-reference.pdf
    • http://www.gorillawalker.com/computer-aided-concurrent-integral-design-research-reports-esprit-project-5168.pdf
    • http://www.gorillawalker.com/angel-of-darkness.pdf
    • http://www.gorillawalker.com/food-microbiology-a-laboratory-manual.pdf
    • http://www.gorillawalker.com/leaders-and-legacies-contributions-to-the-profession-of-counseling.pdf
    • http://www.gorillawalker.com/the-gluten-free-baking-mix-cookbook-kindle-edition.pdf
    • http://www.gorillawalker.com/the-milk-underground-the-cliff-becker-book-prize-in-translation.pdf
    • http://www.gorillawalker.com/the-feasibility-of-democracy-in-africa-gender-institute-series.pdf
    • http://www.gorillawalker.com/the-junior-doctor-s-guide-to-gastroenterology.pdf
    • http://www.gorillawalker.com/practical-magic-a-translation-of-basic-neuro-linguistic-programming-into.pdf
    • http://www.gorillawalker.com/classical-solos-for-bassoon-bk-cd-rom-hal-leonard-instrumental.pdf
    • http://www.gorillawalker.com/maritime-transport-services-in-the-law-of-the-sea-and.pdf
    • http://www.gorillawalker.com/sayings-and-doings-of-pai-chang-zen-writings-series.pdf
    • http://www.gorillawalker.com/children-s-illustrated-bible.pdf
    • http://www.gorillawalker.com/secrets-for-a-successful-dissertation.pdf
    • http://www.gorillawalker.com/encyclopaedia-of-the-worlds-of-doctor-who-a-d-knight.pdf
    • http://www.gorillawalker.com/the-shroud.pdf
    • http://www.gorillawalker.com/world-motorcycle-endurance-racing.pdf
    • http://www.gorillawalker.com/baroque-pieces-volume-1-recorder.pdf
    • http://www.gorillawalker.com/how-to-care-for-aquariums-the-ultimate-home-aquarium-guide.pdf
    • http://www.gorillawalker.com/theory-of-many-particle-systems-aip-translation-series.pdf
    • http://www.gorillawalker.com/food-acorn-comparing-minibeasts.pdf
    • http://www.gorillawalker.com/tm-38-301-1-us-army-technical-manual-joint-oil.pdf
    • http://www.gorillawalker.com/frederick-douglass-a-biography-greenwood-biographies.pdf
    • http://www.gorillawalker.com/marine-biodeterioration-an-interdisciplinary-study.pdf
    • http://www.gorillawalker.com/fullmetal-alchemist-box-set.pdf
    • http://www.gorillawalker.com/the-best-of-irish-breads-and-baking.pdf
    • http://www.gorillawalker.com/the-duke-of-dark-desires-the-wild-quartet-kindle-edition.pdf
    • http://www.gorillawalker.com/pup-idol-top-of-the-pups.pdf
    • http://www.gorillawalker.com/air-sparging-for-site-remediation.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://www.freepdfconvert.com
    • 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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