Malicious PDF — malware analysis report

Static analysis result for SHA-256 136ffab953c2b7d8…

MALICIOUS

PDF

47.6 KB Created: 2019-02-14 08:12:10 +03:00 Authoring application: - (via Apache FOP Version 0.93)
MD5: 47f8be30bb7a6db7add77327bd24e76e SHA-1: 181bc526dee9d67a4c4f022717e7062c1e8cab76 SHA-256: 136ffab953c2b7d886c45ff756f37e843f412eb8379fb302ac2d57b5b603a725
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files on the 'gorillawalker.com' domain. The ML classifier also flagged this PDF as malicious. The primary purpose appears to be to direct users to a large collection of external documents, potentially for SEO spam or to serve as a distribution point for other malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7752

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/elyria-im-visier-der-hexenj-ger-german-edition.pdf
    • http://www.gorillawalker.com/international-peacekeeping-perspectives-on-security.pdf
    • http://www.gorillawalker.com/seasonal-guide-to-the-natural-year-a-month-by-month.pdf
    • http://www.gorillawalker.com/final-frcr-2b-long-cases-a-survival-guide-cambridge-medicine.pdf
    • http://www.gorillawalker.com/piedras-sagradas-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/lonely-planet-bhutan-travel-guide-kindle-edition.pdf
    • http://www.gorillawalker.com/rereading-the-black-legend-the-discourses-of-religious-and-racial.pdf
    • http://www.gorillawalker.com/aktstykker-til-nordens-historie-i-grevefeidens-tid-volumes-1-2.pdf
    • http://www.gorillawalker.com/jackson-s-revenge.pdf
    • http://www.gorillawalker.com/historia-de-guatemala-o-recordacion-florida-volume-1-primary-source.pdf
    • http://www.gorillawalker.com/prayer-book-and-hymnal-containing-the-book-of-common-prayer.pdf
    • http://www.gorillawalker.com/belles-of-the-ball-the-early-history-of-women-s.pdf
    • http://www.gorillawalker.com/american-lives-volume-i-to-1876.pdf
    • http://www.gorillawalker.com/the-definitive-illustrated-history-of-the-torpedo-boat-volume-iv.pdf
    • http://www.gorillawalker.com/forces-and-motion-from-high-speed-jets-to-wind-up.pdf
    • http://www.gorillawalker.com/le-corbusier-le-grand-english-and-french-edition.pdf
    • http://www.gorillawalker.com/the-immigrant-brides-collection-9-stories-celebrate-settling-in-america.pdf
    • http://www.gorillawalker.com/la-plasticit-de-la-fonction-motrice-collection-de-l-acad.pdf
    • http://www.gorillawalker.com/romeo-and-juliet-timeless-shakespeare.pdf
    • http://www.gorillawalker.com/the-diary-of-samuel-pepys-volume-6.pdf
    • http://www.gorillawalker.com/my-first-greek-picture-dictionary-bilingual-greek-english-greek-edition.pdf
    • http://www.gorillawalker.com/how-did-that-get-to-my-house-water-community-connections.pdf
    • http://www.gorillawalker.com/instructions-to-the-cook-a-zen-master-s-lessons-in.pdf
    • http://www.gorillawalker.com/77-denver-the-broncos-and-a-coming-of-age.pdf
    • http://www.gorillawalker.com/the-dog-s-mind-pelham-dogs-by-fogle-bruce-new.pdf
    • http://www.gorillawalker.com/nazism-1919-1945-state-economy-and-society-1933-38-a.pdf
    • http://www.gorillawalker.com/northern-england-road-map-aa-road-map-britain.pdf
    • http://www.gorillawalker.com/norman-the-nephite-s-church-history-time-line.pdf
    • http://www.gorillawalker.com/chess-how-to-play-chess-for-absolute-beginners-the-journey.pdf
    • http://www.gorillawalker.com/violence-the-enduring-problem.pdf
    • http://www.gorillawalker.com/peaceful-parent-happy-kids-how-to-stop-yelling-and-start.pdf
    • http://www.gorillawalker.com/the-elements-of-contract-drafting-with-questions-and-clauses-for.pdf
    • http://www.gorillawalker.com/the-churchill-club-knud-pedersen-and-the-boys-who-challenged.pdf
    • http://www.gorillawalker.com/scorpio-stinger-mc-ryder-prequel-jani-kay.pdf
    • http://www.gorillawalker.com/bundle-calculus-early-transcendentals-7th-mathematics-coursemate-with-ebook-3.pdf
    • http://www.gorillawalker.com/enchanted-frost-frost-series-8-a-ya-romantic-fantasy-adventure.pdf
    • http://www.gorillawalker.com/dreaming-of-jeannie-tv-s-prime-time-in-a-bottle.pdf
    • http://www.gorillawalker.com/my-method-and-how-to-practice-suggestion-and-autosuggestion.pdf
    • http://www.gorillawalker.com/liturgy-of-the-hours-advent-and-christmas-no-401-10.pdf
    • http://www.gorillawalker.com/going-raw-everything-you-need-to-start-your-own-raw.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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