Malicious PDF — malware analysis report

Static analysis result for SHA-256 55ced0b3768a66b3…

MALICIOUS

PDF

35.8 KB Created: 2020-02-19 11:19:31 +03:00 Authoring application: PScript5.dll Version 5.2 (via Acrobat Distiller 6.0 (Windows))
MD5: 40ace6eb947d3f7de4f265bfbc3ee27a SHA-1: 488d174112d48846ce4902dc4ddf63d5edfd120d SHA-256: 55ced0b3768a66b3f1b32f56ff0c945a40a93e79a069e476a7249a559513d858
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7977

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/rainforests.pdf
    • http://www.gorillawalker.com/anglo-saxon-remedies-charms-and-prayers-from-british-library-ms.pdf
    • http://www.gorillawalker.com/fish-neurobiology-volume-1-v-1.pdf
    • http://www.gorillawalker.com/simply-spice-home-cooked-indian-food.pdf
    • http://www.gorillawalker.com/forever-blessed-volume-2.pdf
    • http://www.gorillawalker.com/british-modernism-and-censorship.pdf
    • http://www.gorillawalker.com/contaminated-land-the-practice-and-economics-of-redevelopment.pdf
    • http://www.gorillawalker.com/30-worksheets-find-predecessor-of-5-digit-numbers-math-practice.pdf
    • http://www.gorillawalker.com/prescription-murder.pdf
    • http://www.gorillawalker.com/the-modern-caribbean.pdf
    • http://www.gorillawalker.com/color-harmony-2-a-guide-to-creative-color-combinations.pdf
    • http://www.gorillawalker.com/the-twinkies-cookbook-twinkies-85th-anniversary-edition-a-new-sweet.pdf
    • http://www.gorillawalker.com/the-atlas-of-human-migration-global-patterns-of-people-on.pdf
    • http://www.gorillawalker.com/carriages-and-sleighs-228-illustrations-from-the-1862-lawrence-bradley.pdf
    • http://www.gorillawalker.com/fish-for-life-a-remarkable-way-to-achieve-your-dreams.pdf
    • http://www.gorillawalker.com/law-and-the-disordered-an-exploration-in-mental-health-law.pdf
    • http://www.gorillawalker.com/franchise-freedom-or-fantasy-how-to-know-if-a-franchise.pdf
    • http://www.gorillawalker.com/secret-weapons-of-world-war-ii.pdf
    • http://www.gorillawalker.com/sugar-creek-5-marigold-s-werewolf-mates-sugar-creek-5.pdf
    • http://www.gorillawalker.com/the-will-of-the-tribe-inspector-napoleon-bonaparte-the-arthur.pdf
    • http://www.gorillawalker.com/rhode-island-manufacturers-register-2012.pdf
    • http://www.gorillawalker.com/microlight-pilot-s-handbook-8th-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/florence-aa-spiral-guides.pdf
    • http://www.gorillawalker.com/emancipation-of-russian-nobility-1762-1785-princeton-legacy-library.pdf
    • http://www.gorillawalker.com/warships-of-the-world-an-illustrated-encyclopedia-with-more-than.pdf
    • http://www.gorillawalker.com/charlotte-in-new-york-kindle-edition.pdf
    • http://www.gorillawalker.com/uae-country-map-uae-cym-4-country-maps.pdf
    • http://www.gorillawalker.com/the-reel-west-classic-stories-that-inspired-classic-films.pdf
    • http://www.gorillawalker.com/they-have-fooled-you-again-michael-o-flanagan-1876-1942.pdf
    • http://www.gorillawalker.com/the-vaisesika-sutras-of-kanada-translated-by-nandalal-sinha-kindle.pdf
    • http://www.gorillawalker.com/the-artist-s-way.pdf
    • http://www.gorillawalker.com/hentai-sex-pictures-volume-4-kindle-edition.pdf
    • http://www.gorillawalker.com/between-the-empires-society-in-india-300-bce-to-400.pdf
    • http://www.gorillawalker.com/invisible-nation-how-the-kurds-quest-for-statehood-is-shaping.pdf
    • http://www.gorillawalker.com/end-consumer-92-success-secrets-92-most-asked-questions-on.pdf
    • http://www.gorillawalker.com/lloyd-s-law-reports-1965-v-2.pdf
    • http://www.gorillawalker.com/from-plato-to-nietzsche.pdf
    • http://www.gorillawalker.com/defence-acquisition-for-the-twenty-first-century.pdf
    • http://www.gorillawalker.com/alfred-s-teach-yourself-to-play-mandolin-everything-you-need.pdf
    • http://www.gorillawalker.com/the-complete-guide-to-kung-fu-fighting-styles.pdf
    • http://www.gorillawalker.com/the-twinkies-cookboo
    • 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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