Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0e1a83e6a29108…

MALICIOUS

PDF

40.2 KB Created: 2018-11-23 08:00:41 +03:00 Authoring application: - (via iText 2.1.0 (by lowagie.com))
MD5: 88ef2c14c8356418adddeaef1effa2cb SHA-1: 5c5c375379df6bbaa2fdfb6e2dc6c1e7e89f519c SHA-256: 0a0e1a83e6a2910874896de94d65cd883a659ec47ae534a46b5e0b46bea07543
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files on the domain gorillawalker.com. This is indicative of a link farm or SEO manipulation tactic, but given the malicious verdict and ML classification, it is likely used to distribute malicious content or redirect users to malicious sites. No scripts were extracted, but the PDF structure itself is suspicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8469

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/muhammad-ali-a-thirty-year-journey.pdf
    • http://www.gorillawalker.com/by-inc-john-wiley-sons-weight-watchers-new-complete-cookbook.pdf
    • http://www.gorillawalker.com/bertrand-russell-a-bibliography-of-his-writings-line-bibliographie-seiner.pdf
    • http://www.gorillawalker.com/chloe-instead.pdf
    • http://www.gorillawalker.com/uk-vfr-flight-guide-2005.pdf
    • http://www.gorillawalker.com/manichaean-texts-from-the-roman-empire.pdf
    • http://www.gorillawalker.com/the-dilemma-of-boundaries-toward-a-new-concept-of-catchment.pdf
    • http://www.gorillawalker.com/ethics-and-computing-living-responsibly-in-a-computerized-world.pdf
    • http://www.gorillawalker.com/derek-and-the-dominos-layla-other-assorted-love-songs-guitar.pdf
    • http://www.gorillawalker.com/out-of-the-wreckage-wrecked-and-yours.pdf
    • http://www.gorillawalker.com/the-great-bear-sea-exploring-the-marine-life-of-a.pdf
    • http://www.gorillawalker.com/abroad-with-donahey-cartoonist-of-the-cleveland-plain-dealer.pdf
    • http://www.gorillawalker.com/maximize-your-potential-grow-your-expertise-take-bold-risks-build.pdf
    • http://www.gorillawalker.com/loren-eiseley-a-modern-ishmael.pdf
    • http://www.gorillawalker.com/advances-in-dynamic-equations-on-time-scales.pdf
    • http://www.gorillawalker.com/haunted-by-desire.pdf
    • http://www.gorillawalker.com/laboratory-physics.pdf
    • http://www.gorillawalker.com/illness-and-the-environment-a-reader-in-contested-medicine.pdf
    • http://www.gorillawalker.com/the-insurance-fact-book-2011.pdf
    • http://www.gorillawalker.com/500-6-chapters-1001-2000-volume-2.pdf
    • http://www.gorillawalker.com/progressive-psychological-performance-for-curling.pdf
    • http://www.gorillawalker.com/karin-moorhouse-provence-2016-provence-landscapes-and-light-captured-in.pdf
    • http://www.gorillawalker.com/the-south-african-wholefood-cookbook-whole-food-africa.pdf
    • http://www.gorillawalker.com/blues-booze-bbq.pdf
    • http://www.gorillawalker.com/vouloir-passion-noire-book-1.pdf
    • http://www.gorillawalker.com/petal-s-problems-the-sisters-eight.pdf
    • http://www.gorillawalker.com/the-wizard-s-map-tartan-magic-book-one.pdf
    • http://www.gorillawalker.com/the-yearbook-of-experts-authorities-spokespersons-1997-an-encyclopedia-of.pdf
    • http://www.gorillawalker.com/memories-of-madagascar-and-slavery-in-the-black-atlantic-ohio.pdf
    • http://www.gorillawalker.com/watercolour-flower-portraits.pdf
    • http://www.gorillawalker.com/renaissance-the-art-of-the-italian-renaissance.pdf
    • http://www.gorillawalker.com/women-politics-and-american-society-4th-edition.pdf
    • http://www.gorillawalker.com/ericksonian-hypnosis-cards-unpacked.pdf
    • http://www.gorillawalker.com/asynchronous-transfer-mode-solution-for-broadband-isdn-computer-communications-and.pdf
    • http://www.gorillawalker.com/understanding-early-adolescent-self-and-identity-applications-and-interventions-studying.pdf
    • http://www.gorillawalker.com/gay-life-culture-a-world-history.pdf
    • http://www.gorillawalker.com/rgie-2014-r.pdf
    • http://www.gorillawalker.com/the-passionate-muse-exploring-emotion-in-stories.pdf
    • http://www.gorillawalker.com/current-orthodontic-concepts-and-techniques-v-1.pdf
    • http://www.gorillawalker.com/you-re-never-upset-for-the-reason-you-think-2nd.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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