Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad20b8ddf3eab0a5…

MALICIOUS

PDF

43.5 KB Created: 2018-12-02 10:59:56 +03:00 Authoring application: Word (via Mac OS X 10.10.5 Quartz PDFContext)
MD5: 5b96f24c6d1cb9c8b3341690d8366aa2 SHA-1: 28b65cc5eacee37e1099e4c6aa46a1a94be23401 SHA-256: ad20b8ddf3eab0a5aa05f1e8cd9604cab84f828beaab9ff329c18ea5c922e860
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files on the domain www.gorillawalker.com. This is indicative of an SEO poisoning or link farm attack, designed to drive traffic to potentially malicious or deceptive content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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-time-for-justice.pdf
    • http://www.gorillawalker.com/media-marathoning-immersions-in-morality.pdf
    • http://www.gorillawalker.com/the-book-of-concord-the-confessions-of-the-evangelical-lutheran.pdf
    • http://www.gorillawalker.com/iec-60666-ed-1-0-b-1979-detection-and-determination.pdf
    • http://www.gorillawalker.com/days-from-the-heart-of-the-home.pdf
    • http://www.gorillawalker.com/unusually-dominant-women-7-tales-of-brutal-women-dominating-men.pdf
    • http://www.gorillawalker.com/lead-more-control-less-8-advanced-leadership-skills-that-overturn.pdf
    • http://www.gorillawalker.com/twenty-one-elephants.pdf
    • http://www.gorillawalker.com/the-fat-of-the-land-kindle-edition.pdf
    • http://www.gorillawalker.com/bare-fruits.pdf
    • http://www.gorillawalker.com/st-petersburg-crumpled-city-map.pdf
    • http://www.gorillawalker.com/photography-lighting-know-how-tips-on-setting-up-photography-lighting.pdf
    • http://www.gorillawalker.com/the-adventurous-couple-s-guide-to-strap-on-sex-unabridged.pdf
    • http://www.gorillawalker.com/identification-problems-in-the-social-sciences.pdf
    • http://www.gorillawalker.com/taxonomy-and-evolution-of-the-monkeys-of-celebes-primates-cercopithecidae.pdf
    • http://www.gorillawalker.com/walking-free-the-nellie-zimmerman-story.pdf
    • http://www.gorillawalker.com/f-c-f-episode-one-that-within-free-colonial-forces.pdf
    • http://www.gorillawalker.com/results-in-neuroanatomy-neuropsysiology-neuropathophysiology-and-neuropharmacology-volume-3.pdf
    • http://www.gorillawalker.com/the-european-economy-growth-and-crisis.pdf
    • http://www.gorillawalker.com/section-8-a-hood-rat-novel.pdf
    • http://www.gorillawalker.com/los-hombres-de-la-edad-de-piedra-stone-age-man.pdf
    • http://www.gorillawalker.com/the-prize-the-epic-quest-for-oil-money-power.pdf
    • http://www.gorillawalker.com/zero-lower-bound-term-structure-modeling-a-practitioner-s-guide.pdf
    • http://www.gorillawalker.com/overview-of-innovative-aircraft-power-and-propulsion-systems-and-their.pdf
    • http://www.gorillawalker.com/the-pandora-sequence-kindle-edition.pdf
    • http://www.gorillawalker.com/language-policy-and-political-theory-building-bridges-assessing-breaches.pdf
    • http://www.gorillawalker.com/g-f-handel-guide-to-res-garland-reference-library-of.pdf
    • http://www.gorillawalker.com/hawaiian-legends-of-tricksters-and-riddlers-kolowalu-book.pdf
    • http://www.gorillawalker.com/teaching-science-to-culturally-and-linguistically-diverse-elementary-students.pdf
    • http://www.gorillawalker.com/letters-to-our-children-lesbian-and-gay-adults-speak-to.pdf
    • http://www.gorillawalker.com/45-medical-school-recommendation-letters-that-made-a-difference-nolan.pdf
    • http://www.gorillawalker.com/biology-the-people-behind-the-science-pioneers-in-science.pdf
    • http://www.gorillawalker.com/from-here-to-infinity.pdf
    • http://www.gorillawalker.com/nixon.pdf
    • http://www.gorillawalker.com/song-for-a-princess.pdf
    • http://www.gorillawalker.com/complete-identifier-rocks-crystals-minerals.pdf
    • http://www.gorillawalker.com/beginning-powder-coater-s-handbook-an-introduction-to-powder-coating.pdf
    • http://www.gorillawalker.com/introduction-to-modern-virology-4th-edition.pdf
    • http://www.gorillawalker.com/life-on-purpose-six-passages-to-an-inspired-life.pdf
    • http://www.gorillawalker.com/perfectionism-hope-for-the-heart.pdf
    • http://www.gorillawalker.com/unusually-dominant-women-7-tales-of-brutal-women-dominating
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.