Malicious PDF — malware analysis report

Static analysis result for SHA-256 1886f092395ff146…

MALICIOUS

PDF

35.1 KB Created: 2020-03-12 17:17:49 +03:00 Authoring application: PSCRIPT.DRV Version 4.0 (via Acrobat Distiller 3.01 for Windows)
MD5: 0624b9b7bd8011e0933e2168de22a7d3 SHA-1: 7333b579c7e7828754b75232dc7f999ea518bcf9 SHA-256: 1886f092395ff146ff45ab5205cd5deff89ad575818db8c9ee8fd2fc04221954
92 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents on the 'gorillawalker.com' domain. The ML classifier also flagged the document as malicious. The primary attack pattern appears to be the distribution of a large number of links, potentially for SEO manipulation or to serve as a lure for further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8018

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/el-dictador-los-demonios-y-otras-cronicas-spanish-edition.pdf
    • http://www.gorillawalker.com/open-stent-design-design-and-analysis-of-self-expanding-cardiovascular.pdf
    • http://www.gorillawalker.com/jazz-its-evolution-and-essence.pdf
    • http://www.gorillawalker.com/the-commemoration-of-the-dead-an-inaugural-lecture.pdf
    • http://www.gorillawalker.com/christmas-favorites-clarinet-chart.pdf
    • http://www.gorillawalker.com/timberdick-and-the-great-dockyard-spy-scandal-of-1908-goodladies.pdf
    • http://www.gorillawalker.com/the-moral-neoliberal-welfare-and-citizenship-in-italy-chicago-studies.pdf
    • http://www.gorillawalker.com/oye-hormiguita-spanish-edition.pdf
    • http://www.gorillawalker.com/maidens-monsters-and-heroes-the-fantasy-illustrations-of-h-j.pdf
    • http://www.gorillawalker.com/mi-libro-de-trenes-my-book-of-trains-spanish-edition.pdf
    • http://www.gorillawalker.com/grow-your-own.pdf
    • http://www.gorillawalker.com/tattoo-information-guide-tips-on-ideas-locating-designs-and-removal.pdf
    • http://www.gorillawalker.com/mla-style-of-documentation-a-pocket-guide-the.pdf
    • http://www.gorillawalker.com/cast-iron-dinner-recipes-easy-and-delicious-cast-iron-dinner.pdf
    • http://www.gorillawalker.com/architecture-for-a-hybrid-landscape-proposals-for-the-california-delta.pdf
    • http://www.gorillawalker.com/diagnostic-pathology-of-parasitic-infections-with-clinical-correlations.pdf
    • http://www.gorillawalker.com/undead-paperback.pdf
    • http://www.gorillawalker.com/a-gathering-of-grand-canyon-historians-ideas-arguments-and-first.pdf
    • http://www.gorillawalker.com/basic-digital-photography-a-comprehensive-step-by-step-guide-to.pdf
    • http://www.gorillawalker.com/unlearning-with-hannah-arendt.pdf
    • http://www.gorillawalker.com/tax-policy-in-oecd-countries-choices-and-conflicts.pdf
    • http://www.gorillawalker.com/how-to-study-history.pdf
    • http://www.gorillawalker.com/dyslexia-handbook.pdf
    • http://www.gorillawalker.com/where-to-go-when-italy-dk-eyewitness-travel.pdf
    • http://www.gorillawalker.com/der-junge-vom-wald-german-edition.pdf
    • http://www.gorillawalker.com/health-safety-in-construction-revision-guide-for-the-nebosh-national.pdf
    • http://www.gorillawalker.com/rocked-by-the-billionaire-rock-star-erotica-the-bad-girls.pdf
    • http://www.gorillawalker.com/information-for-academic-library-decision-making-the-case-for-organizational.pdf
    • http://www.gorillawalker.com/regionalism-and-nationalism-in-the-united-states-the-attack-on.pdf
    • http://www.gorillawalker.com/hitler-youth-growing-up-in-hitler-s-shadow-bccb-blue.pdf
    • http://www.gorillawalker.com/one-odd-old-owl-child-s-play-library.pdf
    • http://www.gorillawalker.com/lo-voy-a-lograr-spanish-edition.pdf
    • http://www.gorillawalker.com/tina.pdf
    • http://www.gorillawalker.com/the-realmwalker-chronicles-the-pillars-of-natura-volume-2.pdf
    • http://www.gorillawalker.com/gace-health-and-physical-education-secrets-study-guide-gace-test.pdf
    • http://www.gorillawalker.com/praying-with-pictures.pdf
    • http://www.gorillawalker.com/walter-benjamin-selected-writings-volume-2-1927-1934.pdf
    • http://www.gorillawalker.com/the-student-voice-handbook-bridging-the-academic-practitioner-divide.pdf
    • http://www.gorillawalker.com/ops-story-the-the-true-story-of-tupamaro-terrorists-assassinati.pdf
    • http://www.gorillawalker.com/seven-quintillion-five-hundred-quadrillion-grains-of-sand-on-planet.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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