Malicious PDF — malware analysis report

Static analysis result for SHA-256 83cdc350021b63a6…

MALICIOUS

PDF

47.7 KB Created: 2018-11-23 21:09:01 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 6.0 (Windows))
MD5: 2fd2e57d7956a4f7165422b3bc7740bd SHA-1: a5c22df85abbf8926715e6ddedc535e283098880 SHA-256: 83cdc350021b63a6b967d8db57bd33cbe88f42340ecc5bf490eaf15bb7c19d6e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. The embedded URLs suggest an attempt to redirect users to potentially malicious content or for SEO manipulation purposes. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8013

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/plants-of-the-san-francisco-bay-region-mendocino-to-monterey.pdf
    • http://www.gorillawalker.com/scientific-progress.pdf
    • http://www.gorillawalker.com/model-on-child-abuse-neglect.pdf
    • http://www.gorillawalker.com/outdoor-sports-in-scotland-deer-stalking-grouse-pheasant-shooting-fox.pdf
    • http://www.gorillawalker.com/australian-local-government-reform-and-renewal.pdf
    • http://www.gorillawalker.com/101-songwriting-wrongs-how-to-right-them-how-to-craft.pdf
    • http://www.gorillawalker.com/joe-dimaggio-a-biography-baseball-s-all-time-greatest-hitters.pdf
    • http://www.gorillawalker.com/mathematical-logic-and-foundations-of-set-theory.pdf
    • http://www.gorillawalker.com/the-cnc-cookbook-an-introduction-to-the-creation-and-operation.pdf
    • http://www.gorillawalker.com/integrated-chinese-level-1-part-1-traditional-textbook.pdf
    • http://www.gorillawalker.com/easy-genius-science-projects-with-temperature-and-heat-great-experiments.pdf
    • http://www.gorillawalker.com/sum-substance-of-conflict-of-laws.pdf
    • http://www.gorillawalker.com/psychological-perceptions-to-walking-water-aerobics-and-yoga-in-college.pdf
    • http://www.gorillawalker.com/english-songs-and-ballads-for-appalachian-dulcimer.pdf
    • http://www.gorillawalker.com/kurten-the-age-of-mammals-cloth.pdf
    • http://www.gorillawalker.com/wright-the-origins-of-the-wrights-and-their-place-in.pdf
    • http://www.gorillawalker.com/desperately-deep.pdf
    • http://www.gorillawalker.com/operative-solutions-in-hepatobiliary-and-pancreatic-surgery.pdf
    • http://www.gorillawalker.com/the-new-strong-s-exhaustive-concordance-of-the-bible-nelson.pdf
    • http://www.gorillawalker.com/guia-completa-de-la-migrana-causas-sintomas-y-tratamientos-spanish.pdf
    • http://www.gorillawalker.com/rebel-the-united-federation-marine-corps-volume-4.pdf
    • http://www.gorillawalker.com/start-your-own-corporation-why-the-rich-own-their-own.pdf
    • http://www.gorillawalker.com/the-kansas-city-medical-index-lancet-volume-21-no-12.pdf
    • http://www.gorillawalker.com/baghdad-s-spy-a-personal-memoir-of-espionage-and-intrigue.pdf
    • http://www.gorillawalker.com/type-spaces.pdf
    • http://www.gorillawalker.com/city-of-tranquil-light-a-novel.pdf
    • http://www.gorillawalker.com/buddy-guy-damn-right-i-ve-got-the-blues-guitar.pdf
    • http://www.gorillawalker.com/scenic-driving-atlantic-canada-nova-scotia-new-brunswick-prince-edward.pdf
    • http://www.gorillawalker.com/children-and-divorce-101-ways-to-help-children-during-divorce.pdf
    • http://www.gorillawalker.com/hunting-the-west-memphis-boogeyman.pdf
    • http://www.gorillawalker.com/harmonic-grammar-and-harmonic-serialism-advances-in-optimality-theory.pdf
    • http://www.gorillawalker.com/blithe-spirit-hay-fever-private-lives-three-plays.pdf
    • http://www.gorillawalker.com/my-time-with-antonioni.pdf
    • http://www.gorillawalker.com/between-summer-s-longing-and-winter-s-end-the-story.pdf
    • http://www.gorillawalker.com/the-blackbirch-kid-s-almanac-of-geography-individual-titles.pdf
    • http://www.gorillawalker.com/spectral-hp-element-methods-for-computational-fluid-dynamics-second-edition.pdf
    • http://www.gorillawalker.com/virtual-corporate-universities-a-matrix-of-knowledge-and-learning-for.pdf
    • http://www.gorillawalker.com/peace-corps-guatemala-cookbook-kindle-edition.pdf
    • http://www.gorillawalker.com/international-arbitration-and-global-governance-contending-theories-and-evidence.pdf
    • http://www.gorillawalker.com/from-puerto-rico-to-philadelphia-puerto-rican-workers-and-postwar.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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