Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc2b021e6af56aa…

MALICIOUS

PDF

44.3 KB Created: 2018-11-14 11:21:35 +03:00 Authoring application: SYSTEM400 Rev 16.02 (via Acrobat Distiller 4.05 for Windows, Powered by PDF Polisher Pro 5.01 420)
MD5: 25286677652a3abc70ac2ed0986e6e58 SHA-1: 8ff0cb02af4320a5c1cd899a5b21f139a1abf6dd SHA-256: 1dc2b021e6af56aabb9aff5c9e153986cab856487a2a62e9d9e22cbf08dbdde5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, limiting the ability to determine specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9007

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/accepting-the-alpha-great-lakes-wolves-volume-1.pdf
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    • http://www.gorillawalker.com/the-changing-american-countryside-rural-people-and-places.pdf
    • http://www.gorillawalker.com/the-world-market-for-beauty-or-make-up-skin-care.pdf
    • http://www.gorillawalker.com/the-hunger-games-vietnamese-edition.pdf
    • http://www.gorillawalker.com/dumky-piano-trio-op-90-for-violin-cello-and-piano.pdf
    • http://www.gorillawalker.com/the-neuroscience-of-animal-intelligence.pdf
    • http://www.gorillawalker.com/visual-prosthesis-the-interdisciplinary-dialogue-acm-monograph-series.pdf
    • http://www.gorillawalker.com/sudden-departure-of-the-frasers.pdf
    • http://www.gorillawalker.com/mejoramiento-genetico-de-las-cosechas-genetic-improvement-of-crops-spanish.pdf
    • http://www.gorillawalker.com/ley-de-elecciones-de-la-republica-o-del-uruguay-french.pdf
    • http://www.gorillawalker.com/digital-camera-and-photoshop-digital-photo-processing-with-cd-rom.pdf
    • http://www.gorillawalker.com/plasma-physics-an-introduction-to-statistical-physics-of-charged-particles.pdf
    • http://www.gorillawalker.com/sonata-no-1-for-trumpet.pdf
    • http://www.gorillawalker.com/the-new-york-times-stress-free-crosswords-easy-relaxing-puzzles.pdf
    • http://www.gorillawalker.com/books-to-grow-by-fun-children-s-books-recommended-by.pdf
    • http://www.gorillawalker.com/international-taxation-casebook-series.pdf
    • http://www.gorillawalker.com/favorite-rudimental-solos-of-campbell-cuccia-and-pratt-the.pdf
    • http://www.gorillawalker.com/nature-style-elegant-decorating-with-leaves-twigs-stones.pdf
    • http://www.gorillawalker.com/the-pony-trap-escaping-the-1987-smu-football-death-penalty.pdf
    • http://www.gorillawalker.com/making-good-how-ex-convicts-reform-and-rebuild-their-lives.pdf
    • http://www.gorillawalker.com/a-concise-dictionary-of-english-slang.pdf
    • http://www.gorillawalker.com/churchgoing-today-time-to-listen.pdf
    • http://www.gorillawalker.com/occult-science-in-india-and-among-the-ancients-with-an.pdf
    • http://www.gorillawalker.com/lame-horse-causes-symptoms-and-treatments.pdf
    • http://www.gorillawalker.com/booklist-s-guide-to-the-year-s-best-books-1992.pdf
    • http://www.gorillawalker.com/tarot-psychology-handbook-for-the-jungian-tarot.pdf
    • http://www.gorillawalker.com/girl-s-guide-to-a-mind-blowing-sex-life-secrets.pdf
    • http://www.gorillawalker.com/where-on-earth-am-i.pdf
    • http://www.gorillawalker.com/the-window-of-the-lord-s-return-are-we-the.pdf
    • http://www.gorillawalker.com/the-gingham-dog-and-the-calico-cat.pdf
    • http://www.gorillawalker.com/josie-s-story-a-mother-s-inspiring-crusade-to-make.pdf
    • http://www.gorillawalker.com/dreams-a-biblical-model-of-interpretation.pdf
    • http://www.gorillawalker.com/physics-and-politics.pdf
    • http://www.gorillawalker.com/lonely-planet-buenos-aires-city-travel-guide.pdf
    • http://www.gorillawalker.com/faustina-the-mystic-her-message.pdf
    • http://www.gorillawalker.com/symphony-no-43-in-e-flat-major-hob-i-43.pdf
    • http://www.gorillawalker.com/breve-historia-de-la-esquizofrenia-spanish-edition.pdf
    • http://www.gorillawalker.com/tables-of-dimensions-indices-and-branching-rules-for-representations-of.pdf
    • http://www.gorillawalker.com/process-systems-risk-management-volume-6-process-systems-engineering.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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