Malicious PDF — malware analysis report

Static analysis result for SHA-256 f017fe6fab484449…

MALICIOUS

PDF

42.9 KB Created: 2019-04-07 18:02:39 +03:00 Authoring application: LaTeX with hyperref package (via xdvipdfmx (0.7.8))
MD5: bad234b68b603736f16cfc3c743a2dee SHA-1: 3c55a29857d8c6aa3d8dbcf4ab078f7558e3baa6 SHA-256: f017fe6fab484449f45e3bc60ddac5934bd0cb9d5f5a06b95fb0a4d3e5ffd741
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files on the domain www.gorillawalker.com. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute potentially malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8242

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/the-retirement-management-journal-vol-5-no-1-practitioner-peer.pdf
    • http://www.gorillawalker.com/more-hocus-pocus.pdf
    • http://www.gorillawalker.com/center-stage-bassoon.pdf
    • http://www.gorillawalker.com/nutrition-education-in-medical-schools-hearing-before-the-subcommittee-on.pdf
    • http://www.gorillawalker.com/run-son-run-volume-1.pdf
    • http://www.gorillawalker.com/interpretations-of-probability.pdf
    • http://www.gorillawalker.com/sinful-resort-gender-transformation-erotica-kindle-edition.pdf
    • http://www.gorillawalker.com/bond-markets-analysis-and-strategies-7th-edition.pdf
    • http://www.gorillawalker.com/aesop-s-fables-barnes-noble-classics-series.pdf
    • http://www.gorillawalker.com/technical-analysis-explained-fifth-edition-the-successful-investor-s-guide.pdf
    • http://www.gorillawalker.com/passing-strange-the-complete-book-and-lyrics-of-the-broadway.pdf
    • http://www.gorillawalker.com/nueva-antologia-personal-spanish-edition.pdf
    • http://www.gorillawalker.com/vocal-technique-a-guide-for-conductors-teachers-and-singers.pdf
    • http://www.gorillawalker.com/plastic-surgery-a-problem-based-approach.pdf
    • http://www.gorillawalker.com/the-haunted-a-sarah-roberts-thriller-book-12-kindle-edition.pdf
    • http://www.gorillawalker.com/the-chance-thunder-point.pdf
    • http://www.gorillawalker.com/quadrupole-ion-trap-mass-spectrometry-2nd-edition.pdf
    • http://www.gorillawalker.com/looking-for-normal-acting-edition.pdf
    • http://www.gorillawalker.com/vuelo-del-quetzal-puertas-al-sol.pdf
    • http://www.gorillawalker.com/erich-von-manstein-hitler-s-master-strategist.pdf
    • http://www.gorillawalker.com/faber-piano-adventures-level-2b-learning-library-pack-four-book.pdf
    • http://www.gorillawalker.com/what-the-wine-sellers-buy-plus-three-four-plays-by.pdf
    • http://www.gorillawalker.com/biology-a-functional-approach-fourth-edition.pdf
    • http://www.gorillawalker.com/arabic-graffiti-paperback-edition.pdf
    • http://www.gorillawalker.com/by-philip-d-harvey-schizophrenia-in-late-life-aging-effects.pdf
    • http://www.gorillawalker.com/101-small-business-ideas-for-under-5000.pdf
    • http://www.gorillawalker.com/make-believe-sheet-music.pdf
    • http://www.gorillawalker.com/big-girl-potty-emma-books-kindle-edition.pdf
    • http://www.gorillawalker.com/budgeting-is-more-liberation-than-limitation.pdf
    • http://www.gorillawalker.com/whispers-of-liberation-feminist-perspectives-on-the-new-testament.pdf
    • http://www.gorillawalker.com/british-intelligence-in-the-second-world-war-volume-2-its.pdf
    • http://www.gorillawalker.com/power-politics-and-pentecostals-in-latin-america.pdf
    • http://www.gorillawalker.com/manuale-tipografico-italian-edition.pdf
    • http://www.gorillawalker.com/military-explosives-1919.pdf
    • http://www.gorillawalker.com/twisted-histories-altered-contexts-representing-the-chambri-in-the-world.pdf
    • http://www.gorillawalker.com/national-geographic-magazine-october-1960-vol-118-no-4.pdf
    • http://www.gorillawalker.com/robobots.pdf
    • http://www.gorillawalker.com/medical-informatics-in-obstetrics-and-gynecology-premier-reference-source.pdf
    • http://www.gorillawalker.com/the-story-of-christianity.pdf
    • http://www.gorillawalker.com/engineer-s-guide-to-compression.pdf
    • http://www.gorillawalker.co
    • 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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