Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bfbe6eaaeb082ce…

MALICIOUS

PDF

47.9 KB Created: 2018-11-14 11:21:02 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 4.05 for Windows NT)
MD5: c19380eec2fabd6c006e845abfd46292 SHA-1: 54f8352a45dbb8be699ab7b6153dc78db613e159 SHA-256: 5bfbe6eaaeb082ce806323f2f808d59971128d0b7c1416675ce08d3f808c896d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on the domain 'gorillawalker.com'. This heuristic firing, combined with the ML classifier's high confidence, suggests the document is designed to manipulate search engine results or distribute a large volume of content, potentially 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 0.8509

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/passive-active-and-digital-filters.pdf
    • http://www.gorillawalker.com/orphan-black-volume-1.pdf
    • http://www.gorillawalker.com/miss-beecher-s-domestic-receipt-book-designed-as-a-supplement.pdf
    • http://www.gorillawalker.com/imagenes-de-espana-material-de-practicas-spanish-edition.pdf
    • http://www.gorillawalker.com/the-motion-of-light-in-water-sex-and-science-fiction.pdf
    • http://www.gorillawalker.com/maidenhead-stories-virginity-lost-sensuality-found.pdf
    • http://www.gorillawalker.com/altfranz-sisches-bungsbuch-zum-gebrauch-bei-vorlesungen-und-seminar-bungen.pdf
    • http://www.gorillawalker.com/lives-of-the-hunted-containing-the-doings-of-five-quadrupeds.pdf
    • http://www.gorillawalker.com/vacation-in-mayaland-a-travel-guide-to-guatemala.pdf
    • http://www.gorillawalker.com/the-insulted-and-injured-translated-from-the-russian-by-constance.pdf
    • http://www.gorillawalker.com/the-rhythms-of-women-s-desire-how-female-sexuality-unfolds.pdf
    • http://www.gorillawalker.com/comments-on-fracture-mechanics.pdf
    • http://www.gorillawalker.com/matthew-1-7-a-commentary-hermeneia-a-critical-historical-commentary.pdf
    • http://www.gorillawalker.com/dynamics-of-structure-and-foundation-a-unified-approach-2-applications.pdf
    • http://www.gorillawalker.com/the-harvey-specter-handbook-life-lessons-mens-fashion-from-the.pdf
    • http://www.gorillawalker.com/the-architectural-historian-in-america-a-symposium-in-celebration-of.pdf
    • http://www.gorillawalker.com/en-la-oscuridad-resplandecen-las-estrellas-oz-editorial-spanish-edition.pdf
    • http://www.gorillawalker.com/i-m-rich-beyond-my-wildest-dreams-how-to-get.pdf
    • http://www.gorillawalker.com/central-florida-thoroughbreds-a-history-of-horses-in-the-heart.pdf
    • http://www.gorillawalker.com/thirty-one-nil-on-the-road-with-football-s-outsiders.pdf
    • http://www.gorillawalker.com/how-to-pay-for-your-degree-in-journalism-and-related.pdf
    • http://www.gorillawalker.com/money-master-the-game-by-tony-robbins-a-15-minute.pdf
    • http://www.gorillawalker.com/poppy-done-to-death-aurora-teagarden-mysteries-book-8.pdf
    • http://www.gorillawalker.com/attention-deficit-disorder-simple-practical-strategies-for-managing-attention-deficit.pdf
    • http://www.gorillawalker.com/the-blues-a-visual-history.pdf
    • http://www.gorillawalker.com/popular-science-magazine-january-1968.pdf
    • http://www.gorillawalker.com/sample-preparation-handbook-for-transmission-electron-microscopy.pdf
    • http://www.gorillawalker.com/on-call-procedures-on-call-series-1e.pdf
    • http://www.gorillawalker.com/review-questions-and-answers-for-dental-assisting-1e.pdf
    • http://www.gorillawalker.com/honor-of-the-wolf-the-gray-pack-6-siren-publishing.pdf
    • http://www.gorillawalker.com/leonardo-di-caprio-a-biography.pdf
    • http://www.gorillawalker.com/social-media-and-the-new-academic-environment-pedagogical-challenges.pdf
    • http://www.gorillawalker.com/inside-the-fashion-business-text-and-readings-by-jeannette-a.pdf
    • http://www.gorillawalker.com/asterix-the-bold-asterix-at-the-olympic-games-asterix-and.pdf
    • http://www.gorillawalker.com/reading-and-the-reference-librarian-the-importance-to-library-service.pdf
    • http://www.gorillawalker.com/high-blood-pressure-and-should-avoid-chinese-edition.pdf
    • http://www.gorillawalker.com/on-the-suppression-of-the-society-of-jesus.pdf
    • http://www.gorillawalker.com/the-organization-ecology-of-interest-communities-assessment-and-agenda-interest.pdf
    • http://www.gorillawalker.com/etiquette-guide-to-japan-know-the-rules-that-make-the.pdf
    • http://www.gorillawalker.com/weber-andante-and-rondo-ongarese-op-35-for-viola-and.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/