Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de55b04350fe8ab…

MALICIOUS

PDF

42.8 KB Created: 2018-12-15 08:34:05 +03:00 Authoring application: FrameMaker 11.0 (via Acrobat Distiller 11.0 (Windows))
MD5: 2009d1a2caf5049f8adb2c82cd2a1284 SHA-1: 138b7729df4bc0c1d0de811a61ab8d38e77c16eb SHA-256: 1de55b04350fe8abbc83dd4f4f7ffd3eb5565c2409a579b3f4b71db2c40de468
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of external links, indicating a potential SEO poisoning or link farm attack. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with 32 external PDF links, many of which point to book titles on the 'gorillawalker.com' domain. While no scripts were extracted, the sheer volume of links suggests an attempt to either drive traffic to potentially compromised or malicious sites, or to manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/molecular-gastronomy-exploring-the-science-of-flavor-arts-traditions-of.pdf
    • http://www.gorillawalker.com/at-the-art-store-compare-numbers-rosen-common-core-math.pdf
    • http://www.gorillawalker.com/finding-ultra-rejecting-middle-age-becoming-one-of-the-world.pdf
    • http://www.gorillawalker.com/shinya-shokudo-1-chinese-edition.pdf
    • http://www.gorillawalker.com/berlin-2012-taschen-diaries.pdf
    • http://www.gorillawalker.com/formation-ballet-photos-de-cours-de-ballet-et-de-chaussons.pdf
    • http://www.gorillawalker.com/nebraska-sss-from-sea-to-shining-sea.pdf
    • http://www.gorillawalker.com/picture-wordsearch-50-fun-picture-wordsearches.pdf
    • http://www.gorillawalker.com/local-anesthesia-in-dentistry-dental-practitioner-handbook.pdf
    • http://www.gorillawalker.com/by-richard-n-aufmann-intermediate-algebra-an-applied-approach-8th.pdf
    • http://www.gorillawalker.com/workbook-for-black-white-photography-paperback-2005-author-kim-mosley.pdf
    • http://www.gorillawalker.com/social-fitness-and-resilience-a-review-of-relevant-constructs-measures.pdf
    • http://www.gorillawalker.com/battered-but-not-broken-help-for-abused-wives-and-their.pdf
    • http://www.gorillawalker.com/principles-of-transgender-medicine-and-surgery-human-sexuality.pdf
    • http://www.gorillawalker.com/the-silent-service-seawolf-class.pdf
    • http://www.gorillawalker.com/the-hurricane-years.pdf
    • http://www.gorillawalker.com/kabul-beauty-school-an-american-woman-goes-behind-the-veil.pdf
    • http://www.gorillawalker.com/student-solutions-manual-for-kaufmann-schwitters-college-algebra-7th.pdf
    • http://www.gorillawalker.com/mystery-box.pdf
    • http://www.gorillawalker.com/the-next-economy-will-you-know-where-your-customers-are.pdf
    • http://www.gorillawalker.com/the-wendy-williams-experience-abridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/the-trinity-alps-companion-hiking-trails-and-fishing-tales-in.pdf
    • http://www.gorillawalker.com/mother-goose-numbers-on-the-loose.pdf
    • http://www.gorillawalker.com/the-other-side-of-him-kindle-edition.pdf
    • http://www.gorillawalker.com/the-pirates-of-somalia-inside-their-hidden-world.pdf
    • http://www.gorillawalker.com/deliciously-vegan.pdf
    • http://www.gorillawalker.com/the-bear-with-the-sword.pdf
    • http://www.gorillawalker.com/pictorial-tour-through-bavaria.pdf
    • http://www.gorillawalker.com/boxed-set-ebony-persuasion-little-black-romance-book-4.pdf
    • http://www.gorillawalker.com/field-guide-to-the-trees-and-shrubs-of-the-miombo.pdf
    • http://www.gorillawalker.com/fausto-e-iaio-italian-edition.pdf
    • http://www.gorillawalker.com/metformin-cited-as-option-for-some-prediabetes-cases-ada-statement.pdf
    • http://www.gorillawalker.com/algorithms-in-c-parts-1-5-bundle-fundamentals-data-structures.pdf
    • http://www.gorillawalker.com/how-to-dj-right-the-art-and-science-of-playing.pdf
    • http://www.gorillawalker.com/creative-workshop-80-challenges-to-sharpen-your-design-skills-kindle.pdf
    • http://www.gorillawalker.com/you-and-your-network-8-vital-links-to-an-exciting.pdf
    • http://www.gorillawalker.com/new-map-xxl-71-inches-original-plate-tectonics-map-school.pdf
    • http://www.gorillawalker.com/exploring-piano-masterworks.pdf
    • http://www.gorillawalker.com/sensory-evaluation-practices-fourth-edition-food-science-and-technology.pdf
    • http://www.gorillawalker.com/character-education-readers-would-it-be-right.pdf
    • http://www.gorillawalker.com/loca
    • 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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