Malicious PDF — malware analysis report

Static analysis result for SHA-256 62c587e4af266e87…

MALICIOUS

PDF

45.5 KB Created: 2018-11-30 20:55:57 +03:00 Authoring application: Apache FOP Version 1.0
MD5: 2666720dc1b73a48f8d139fcc88b1f73 SHA-1: 48426de3f5f3d5241dd089a4987367c69957b9b7 SHA-256: 62c587e4af266e87575cc97e1821095cf167ca5045e2c43024d92a0c84a1d727
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or to distribute a large number of potentially malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8173

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/inorganic-and-organometallic-polymers.pdf
    • http://www.gorillawalker.com/best-tent-camping-new-mexico-your-car-camping-guide-to.pdf
    • http://www.gorillawalker.com/celebrating-good-liturgy-a-guide-to-the-ministries-of-the.pdf
    • http://www.gorillawalker.com/kiluanji-kia-henda-travelling-to-the-sun-through-the-night.pdf
    • http://www.gorillawalker.com/gordon-ramsay.pdf
    • http://www.gorillawalker.com/a-valuetales-treasury-stories-for-growing-good-people.pdf
    • http://www.gorillawalker.com/hold-me-close-let-me-go-a-mother-a-daughter.pdf
    • http://www.gorillawalker.com/spine-the-health-handbook-neck-shoulders-waist-back-pain-prevention.pdf
    • http://www.gorillawalker.com/ford-aerostar-mini-van-86-97-haynes-repair-manuals.pdf
    • http://www.gorillawalker.com/energy-less-sleep-more-energy-how-to-sleep-less-and.pdf
    • http://www.gorillawalker.com/private-collection-yuuna-renaisyasin-japanese-edition.pdf
    • http://www.gorillawalker.com/black-beauty-usborne-young-reading.pdf
    • http://www.gorillawalker.com/evergreens-how-to-grow-them-including-varieties-and-characteristics-of.pdf
    • http://www.gorillawalker.com/private-peat.pdf
    • http://www.gorillawalker.com/shapes-grades-pk-k-gold-star-edition-home-workbooks.pdf
    • http://www.gorillawalker.com/wang-shi-bing-bu-ru-yan-the-past-is-not.pdf
    • http://www.gorillawalker.com/moleskine-2015-2016-le-petit-prince-limited-edition-weekly-notebook.pdf
    • http://www.gorillawalker.com/munoraku.pdf
    • http://www.gorillawalker.com/janet-cardiff-the-walk-book.pdf
    • http://www.gorillawalker.com/risotto-over-100-delicious-little-rice-recipes.pdf
    • http://www.gorillawalker.com/a-kingdom-keepers-adventure-the-syndrome.pdf
    • http://www.gorillawalker.com/the-dagger-of-adendigaeth-a-pattern-of-shadow-light-book.pdf
    • http://www.gorillawalker.com/the-java-ee-architect-s-handbook-second-edition-how-to.pdf
    • http://www.gorillawalker.com/the-heart-of-the-sound-an-alaskan-paradise-found-and.pdf
    • http://www.gorillawalker.com/el-dorado-or-adventure-in-the-path-of-empire-comprising.pdf
    • http://www.gorillawalker.com/swan-song-hooded-swan-vol-6-kindle-edition.pdf
    • http://www.gorillawalker.com/media-representations-of-police-and-crime-shaping-the-police-television.pdf
    • http://www.gorillawalker.com/diana-her-new-life.pdf
    • http://www.gorillawalker.com/life-before-man.pdf
    • http://www.gorillawalker.com/absolute-java-6th-edition.pdf
    • http://www.gorillawalker.com/the-butterfly-virus-a-thriller.pdf
    • http://www.gorillawalker.com/selected-letters-of-vanessa-bell.pdf
    • http://www.gorillawalker.com/philip-s-modern-school-atlas.pdf
    • http://www.gorillawalker.com/the-mystery-of-the-secret-message-the-boxcar-children-mysteries.pdf
    • http://www.gorillawalker.com/the-bomb-shelter-builders-book.pdf
    • http://www.gorillawalker.com/clarinet-exam-pieces-20142017-grade-3-score-part-cd-selected.pdf
    • http://www.gorillawalker.com/saxon-math-5-4-homeschool-complete-kit-3rd-edition.pdf
    • http://www.gorillawalker.com/anglo-amerikanische-katalogisierungsregeln-deutsche-aoebersetzung-der-anglo-american-cataloguing-rules.pdf
    • http://www.gorillawalker.com/citizenship-and-the-challenge-of-global-education-european-issues-in.pdf
    • http://www.gorillawalker.com/the-iranian-languages-routledge-language-family-series.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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