Malicious PDF — malware analysis report

Static analysis result for SHA-256 c98b1e48603a0f81…

MALICIOUS

PDF

33.1 KB Created: 2019-11-10 05:17:04 +03:00 Authoring application: Adobe Acrobat 8.13 (via Adobe Acrobat 8.13 Image Conversion Plug-in)
MD5: f229835330f475024fb71938662bcbc4 SHA-1: b8dced2adf4c409c4579d01597e39ed00a3a157e SHA-256: c98b1e48603a0f811df4f99f015e2cc1d4581f61f8d4478bf90a85afd07a2127
90 Risk Score

Malware Insights

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

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 primary attack pattern involves directing users to a large collection of URLs, likely for SEO manipulation or to serve as a distribution point for further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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-order-of-kythira.pdf
    • http://www.gorillawalker.com/mutants-masterminds-lockdown-mutants-masterminds-sourcebook.pdf
    • http://www.gorillawalker.com/children-of-the-dragon-exalted-trilogy-of-the-second-age.pdf
    • http://www.gorillawalker.com/what-s-the-deal-with-500-questions-today-s-students.pdf
    • http://www.gorillawalker.com/minnie-and-moo-the-night-of-the-living-bed-with.pdf
    • http://www.gorillawalker.com/war-is-not-a-game-the-new-antiwar-soldiers-and.pdf
    • http://www.gorillawalker.com/walking-in-provence-west-dr-me-proven-al-vaucluse-var.pdf
    • http://www.gorillawalker.com/one-bite-at-a-time-revised-nourishing-recipes-for-cancer.pdf
    • http://www.gorillawalker.com/the-value-of-escharotics-medicines-whish-will-destroy-any-living.pdf
    • http://www.gorillawalker.com/how-to-draw-how-to-draw-people.pdf
    • http://www.gorillawalker.com/communicating-data-with-tableau-kindle-edition.pdf
    • http://www.gorillawalker.com/environmental-applications-of-nanomaterials-synthesis-sorbents-and-sensors-2nd-edition.pdf
    • http://www.gorillawalker.com/the-sherpa-guide-process-driven-executive-coaching.pdf
    • http://www.gorillawalker.com/strengths-based-generalist-practice-a-collaborative-approach-methods-practice-of.pdf
    • http://www.gorillawalker.com/taiwan.pdf
    • http://www.gorillawalker.com/playing-with-purpose-baseball-devotions-180-spiritual-truths-drawn-from.pdf
    • http://www.gorillawalker.com/the-creedal-imperative.pdf
    • http://www.gorillawalker.com/the-she-wolf-the-accursed-kings-book-5.pdf
    • http://www.gorillawalker.com/the-dressmaker.pdf
    • http://www.gorillawalker.com/slave-to-sensation-psy-changeling-series.pdf
    • http://www.gorillawalker.com/overdosed-america-the-broken-promise-of-american-medicine-p-s.pdf
    • http://www.gorillawalker.com/ecology-2nd-edition.pdf
    • http://www.gorillawalker.com/egypt-child-of-africa-journal-of-african-civilizations-v-12.pdf
    • http://www.gorillawalker.com/callous-disregard-autism-and-vaccines-the-truth-behind-a-tragedy.pdf
    • http://www.gorillawalker.com/systemized-play-at-craps-and-roulette.pdf
    • http://www.gorillawalker.com/the-secret-out-one-thousand-tricks-with-cards-and-other.pdf
    • http://www.gorillawalker.com/the-pantry-primer-how-to-build-a-one-year-food.pdf
    • http://www.gorillawalker.com/women-in-the-club-gender-and-policy-making-in-the.pdf
    • http://www.gorillawalker.com/food-safety-old-habits-new-perspectives.pdf
    • http://www.gorillawalker.com/sodium-and-the-alkali-metals-periodic-table.pdf
    • http://www.gorillawalker.com/aca-ethical-standards-casebook.pdf
    • http://www.gorillawalker.com/alif-baa-third-edition-alif-baa-introduction-to-arabic-letters.pdf
    • http://www.gorillawalker.com/dolphins-nature-watch.pdf
    • http://www.gorillawalker.com/monkey-room-kindle-edition.pdf
    • http://www.gorillawalker.com/music-appreciation-quick-study-academic.pdf
    • http://www.gorillawalker.com/burning-desire-federal-agent-chronicles-book-1.pdf
    • http://www.gorillawalker.com/fd-toronto-1986.pdf
    • http://www.gorillawalker.com/parkinson-disease-a-naturopathic-approach-woodland-health.pdf
    • http://www.gorillawalker.com/operation-snow-how-a-soviet-mole-in-fdr-s-white.pdf
    • http://www.gorillawalker.com/anti-tumour-necrosis-factor-therapy-in-inflammatory-bowel-disease-frontiers.pdf
    • http://www.gorillawalker.com
    • 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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