Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf189dc05401b3aa…

MALICIOUS

PDF

44.2 KB Created: 2019-03-17 11:09:50 +03:00 Authoring application: Writer (via OpenOffice.org 2.0.3)
MD5: 868404ddb3d5e61d9e9d754bd88552b3 SHA-1: b3f5e31eff4adc924dc8ee69d0f718be5c2e5aaf SHA-256: cf189dc05401b3aa47979c19148458c161efeedba9cd851bd75a7e1acc039357
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. The primary heuristic indicates this is a SEO link farm, suggesting the document's purpose is to drive traffic to external PDF files. While no malicious scripts were extracted, the sheer volume of links and the critical heuristic firing suggest a malicious intent to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/standards-principles-and-techniques-in-quantity-food-production-third-edition.pdf
    • http://www.gorillawalker.com/programming-proverbs-for-fortran-programmers-hayden-computer-programming-series.pdf
    • http://www.gorillawalker.com/age-related-cataract.pdf
    • http://www.gorillawalker.com/spices-their-morphology-histology-and-chemistry.pdf
    • http://www.gorillawalker.com/the-time-traveler-s-wife.pdf
    • http://www.gorillawalker.com/understanding-and-managing-oncologic-emergencies-a-resource-for-nurses.pdf
    • http://www.gorillawalker.com/southland.pdf
    • http://www.gorillawalker.com/i-only-joined-for-the-hat-redoubtable-wrens-at-war.pdf
    • http://www.gorillawalker.com/air-safety-investigators-using-science-to-save-lives-one-crash.pdf
    • http://www.gorillawalker.com/how-to-live-in-high-victory.pdf
    • http://www.gorillawalker.com/the-healthy-back-book-simple-exercises-for-an-active-pain.pdf
    • http://www.gorillawalker.com/bach-j-s-concerto-in-d-minor-bwv-1052-for.pdf
    • http://www.gorillawalker.com/stir-fry-greats-delicious-stir-fry-recipes-the-top-84.pdf
    • http://www.gorillawalker.com/the-public-librarian-s-human-resources-handbook-employer-rights-and.pdf
    • http://www.gorillawalker.com/positive-discipline-for-teenagers-revised-2nd-edition-empowering-your-teens.pdf
    • http://www.gorillawalker.com/analysis-of-multidimensional-poverty-theory-and-case-studies-economic-studies.pdf
    • http://www.gorillawalker.com/dynamics-of-atmospheric-flows-atmospheric-transport-and-diffusion-processes-advances.pdf
    • http://www.gorillawalker.com/a-series-of-unrelated-events-kindle-edition.pdf
    • http://www.gorillawalker.com/indonesia-insider-s-guides.pdf
    • http://www.gorillawalker.com/total-quality-management-2nd-edition.pdf
    • http://www.gorillawalker.com/cope-s-early-diagnosis-of-the-acute-abdomen-silen-early.pdf
    • http://www.gorillawalker.com/rocket-ship-galileo.pdf
    • http://www.gorillawalker.com/battletech-field-manual-mercenaries.pdf
    • http://www.gorillawalker.com/hellenistic-sculpture-i-the-styles-of-ca-331-200-b.pdf
    • http://www.gorillawalker.com/beverly-hills-demon-slayer-accidental-demon-slayer-volume-6.pdf
    • http://www.gorillawalker.com/fallen-king-a-jesse-mcdermitt-novel-jesse-mcdermitt-series-volume.pdf
    • http://www.gorillawalker.com/the-west-coast-of-south-america-with-sydney-a-clark.pdf
    • http://www.gorillawalker.com/hans-christian-andersen-illustrated-fairytales-volume-iv.pdf
    • http://www.gorillawalker.com/boston-pizza-international-inc-company-capsule-download-pdf-digital.pdf
    • http://www.gorillawalker.com/perfect-madness-motherhood-in-the-age-of-anxiety.pdf
    • http://www.gorillawalker.com/sarah-moon-photofile.pdf
    • http://www.gorillawalker.com/one-up-on-wall-street-abridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/wonderlijke-avonturen-met-boomgeest-piew-ontdek-hoe-de-surinaamse-mangoboomgeest.pdf
    • http://www.gorillawalker.com/kindergarten-basics-super-deluxe-edition-the-basics.pdf
    • http://www.gorillawalker.com/the-book-of-counsel-the-popol-vuh-of-the-quiche.pdf
    • http://www.gorillawalker.com/k-12-classroom-teaching-a-primer-for-new-professionals-4th.pdf
    • http://www.gorillawalker.com/fundamentals-of-motor-control.pdf
    • http://www.gorillawalker.com/cloning-agricultural-plants-via-in-vitro-techniques.pdf
    • http://www.gorillawalker.com/lake-trout-north-america-s-greatest-game-fish.pdf
    • http://www.gorillawalker.com/le-guide-du-leader-tome-iii-etude-offre-aux-leaders.pdf
    • http://www.gorillawalker.com/air-safety-investigators-using-science-to-save-lives
    • 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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