Malicious PDF — malware analysis report

Static analysis result for SHA-256 da4bc705f23f9b92…

MALICIOUS

PDF

41.4 KB Created: 2019-03-17 07:05:01 +03:00 Authoring application: TeX (via pdfTeX-1.40.9)
MD5: 94b2dd05079115f7bb53d17c1bcb3786 SHA-1: 07f52468b139a0a8d0981f212de847f115e16f64 SHA-256: da4bc705f23f9b924e62bbd43a5f77e6350e760f70a60f16333594c0a9c5d2d4
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links pointing to external PDF documents on the domain www.gorillawalker.com. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/wine-lovers-quotations-for-appreciators-of-the-vine.pdf
    • http://www.gorillawalker.com/embattled-rebel-jefferson-davis-as-commander-in-chief-thorndike-press.pdf
    • http://www.gorillawalker.com/the-gospel-centered-life-for-teens-leader-s-guide.pdf
    • http://www.gorillawalker.com/on-flat-land-learning-the-fl-sound-power-phonics-phonics.pdf
    • http://www.gorillawalker.com/wainwright-pictoral-guides-book-1-eastern-fells-50th-anniversary-edition.pdf
    • http://www.gorillawalker.com/a-catalogue-of-destructive-earthquakes-a-d-7-to-a.pdf
    • http://www.gorillawalker.com/the-case-of-the-six-coffins-pulp-classics.pdf
    • http://www.gorillawalker.com/writing-systems-a-linguistic-introduction.pdf
    • http://www.gorillawalker.com/gods-in-our-midst-mythological-images-of-the-masculine-a.pdf
    • http://www.gorillawalker.com/sushi-para-hoy-everyday-spanish-edition.pdf
    • http://www.gorillawalker.com/nine-lives-of-a-black-panther-a-story-of-survival.pdf
    • http://www.gorillawalker.com/the-poetics-of-translation-history-theory-practice.pdf
    • http://www.gorillawalker.com/william-harvey-genius-discoverer-of-blood-circulation-genius-scientists-and.pdf
    • http://www.gorillawalker.com/die-regatta-der-h.pdf
    • http://www.gorillawalker.com/prevention-program-development-and-evaluation-an-incidence-reduction-culturally-relevant.pdf
    • http://www.gorillawalker.com/the-creed-the-faith-that-moves-evolution.pdf
    • http://www.gorillawalker.com/applied-geochemistry-in-the-1980-s.pdf
    • http://www.gorillawalker.com/environmental-health-for-nurses-volume-1.pdf
    • http://www.gorillawalker.com/making-lifelong-learning-work.pdf
    • http://www.gorillawalker.com/the-evolution-of-automotive-technology-a-handbook.pdf
    • http://www.gorillawalker.com/dr-birdley-teaches-science-introducing-cells.pdf
    • http://www.gorillawalker.com/the-new-hypnosis-in-sex-therapy-cognitive-behavioral-methods-for.pdf
    • http://www.gorillawalker.com/cuba-from-columbus-to-castro.pdf
    • http://www.gorillawalker.com/passage-through-trinidad-journal-of-a-surgical-sex-change.pdf
    • http://www.gorillawalker.com/mothers-and-meaning-on-the-early-modern-english-stage.pdf
    • http://www.gorillawalker.com/yemen-a-photographic-journey.pdf
    • http://www.gorillawalker.com/goethe-s-letters-from-switzerland-and-travels-in-italy-goethe.pdf
    • http://www.gorillawalker.com/conflict-and-creativity-at-work-human-roots-of-corporate-life.pdf
    • http://www.gorillawalker.com/viral-change.pdf
    • http://www.gorillawalker.com/psychedelics-the-uses-and-implications-of-hallucinogenic-drugs.pdf
    • http://www.gorillawalker.com/stumpjumper-25-years-of-mountain-biking.pdf
    • http://www.gorillawalker.com/focus-on-speed-proportion-ratio-kumon-focus-on-workbook.pdf
    • http://www.gorillawalker.com/el-eterno-femenino-farsa-spanish-edition.pdf
    • http://www.gorillawalker.com/the-complete-idiot-s-guide-to-toltec-wisdom-paperback.pdf
    • http://www.gorillawalker.com/e-encyclopedia-animal.pdf
    • http://www.gorillawalker.com/favorite-cakes.pdf
    • http://www.gorillawalker.com/china-s-ascent-power-security-and-the-future-of-international.pdf
    • http://www.gorillawalker.com/private-equity-history-governance-and-operations-wiley-finance-kindle-edition.pdf
    • http://www.gorillawalker.com/the-cultural-geography-reader.pdf
    • http://www.gorillawalker.com/croft-dorothy-violin-theory-for-beginners-book-1-southern-music.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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