Malicious PDF — malware analysis report

Static analysis result for SHA-256 c81be8ccbf41533b…

MALICIOUS

PDF

47.8 KB Created: 2018-11-14 21:15:23 +03:00 Authoring application: - (via ABBYY FineReader 9.0 Sprint)
MD5: 549bf3b280f72f2cf74244d7376d24ce SHA-1: cc456213dd9c7fbc228414822f8036101e44ff78 SHA-256: c81be8ccbf41533be5d4860d9c67e9a841ef930e50703b476e59d36205b0aca9
60 Risk Score

Malware Insights

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

The PDF contains a large number of external links, primarily pointing to PDFs hosted on www.gorillawalker.com. This heuristic firing suggests a link farm, likely intended to manipulate search engine results or 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/feminism-the-essential-historical-writings.pdf
    • http://www.gorillawalker.com/bioquimica-las-bases-moleculares-de-la-estructura-y-funcion-celular.pdf
    • http://www.gorillawalker.com/e-z-pre-algebra-barron-s-e-z-series.pdf
    • http://www.gorillawalker.com/effluent-america-cities-industry-energy-and-the-environment-pittsburgh-hist.pdf
    • http://www.gorillawalker.com/bodyline-autopsy-the-full-story-of-the-most-sensational-test.pdf
    • http://www.gorillawalker.com/justifying-historical-descriptions-cambridge-studies-in-philosophy.pdf
    • http://www.gorillawalker.com/notebooks-of-michel-bras-desserts.pdf
    • http://www.gorillawalker.com/earthquake-country-how-why-when-earthq.pdf
    • http://www.gorillawalker.com/yoga-for-young-people-a-flowmotion-book-essential-yoga-poses.pdf
    • http://www.gorillawalker.com/eco-innovation-and-the-development-of-business-models-lessons-from.pdf
    • http://www.gorillawalker.com/the-great-transition-using-the-seven-disciplines-of-enterprise-engineering.pdf
    • http://www.gorillawalker.com/lucretius-his-six-books-of-epicurean-philosophy-and-manilius-his.pdf
    • http://www.gorillawalker.com/allergies-and-candida-with-the-physicist-s-rapid-solution.pdf
    • http://www.gorillawalker.com/the-power-of-habit-how-to-create-good-habits-break.pdf
    • http://www.gorillawalker.com/hummingbird-bakery-halloween-and-bonfire-night-bakes-an-extract-from.pdf
    • http://www.gorillawalker.com/body-confident-a-guided-journal-for-losing-weight-and-feeling.pdf
    • http://www.gorillawalker.com/popular-norwegian-poems-in-english-translation.pdf
    • http://www.gorillawalker.com/ceylon-tea-a-trip-to-sri-lanka-everyone-always-says.pdf
    • http://www.gorillawalker.com/resilience-suffering-and-creativity-the-work-of-the-refugee-therapy.pdf
    • http://www.gorillawalker.com/republic-or-death-travels-in-national-anthems.pdf
    • http://www.gorillawalker.com/02-odin-s-ravens-blackwell-pages-number-2-in-series.pdf
    • http://www.gorillawalker.com/fifteen-poets-of-the-aztec-world.pdf
    • http://www.gorillawalker.com/mel-bay-earth-rhythms-catalog-vol-1.pdf
    • http://www.gorillawalker.com/god-and-the-natural-law-a-rereading-of-thomas-aquinas.pdf
    • http://www.gorillawalker.com/red-earth-laterite-english-and-french-edition.pdf
    • http://www.gorillawalker.com/the-murder-of-tutankhamen.pdf
    • http://www.gorillawalker.com/dutch-and-gina-a-scandal-is-born-volume-3.pdf
    • http://www.gorillawalker.com/by-george-collison-facilitating-online-learning-effective-strategies-for-moderators.pdf
    • http://www.gorillawalker.com/social-media-in-the-workplace-a-handbook.pdf
    • http://www.gorillawalker.com/p-dorsey-s-j-mansueto-s-the-five-rules-for.pdf
    • http://www.gorillawalker.com/looking-closer-critical-writings-on-graphic-design.pdf
    • http://www.gorillawalker.com/faulkner-reader.pdf
    • http://www.gorillawalker.com/philidor-files-detailed-coverage-of-a-dynamic-opening-everyman-chess.pdf
    • http://www.gorillawalker.com/gen-cmb-ess-med-lang-cnct.pdf
    • http://www.gorillawalker.com/sober-for-good-new-solutions-for-drinking-problems-advice-from.pdf
    • http://www.gorillawalker.com/frank-lloyd-wright-s-california-houses-wright-at-a-glance.pdf
    • http://www.gorillawalker.com/interviewing-principles-and-practices.pdf
    • http://www.gorillawalker.com/ancient-astronomy-and-celestial-divination-dibner-institute-studies-in-the.pdf
    • http://www.gorillawalker.com/great-political-theories-v-1-a-comprehensive-selection-of-the.pdf
    • http://www.gorillawalker.com/henri-michaux-experimentation-with-signs-faux-titre.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/