Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ed699e05e0ba67…

MALICIOUS

PDF

41.2 KB Created: 2018-11-14 08:20:29 +03:00 Authoring application: calibre 2.23.0 [http://calibre-ebook.com]
MD5: 67e24d67e604b476cc2123249f893671 SHA-1: dc4bf35e4c442ab3f829595bcc03ebc668989e28 SHA-256: 01ed699e05e0ba67ae58ed85d3979c0a4265162a169f826accbb748d7ebd7654
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, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were explicitly extracted, the nature of the embedded links suggests an attempt to manipulate search engine results or distribute further malicious content, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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-yoga-adventure-for-children-playing-dancing-moving-breathing-relaxing.pdf
    • http://www.gorillawalker.com/building-fortress-europe-the-polish-ukrainian-frontier-democracy-citizenship-and.pdf
    • http://www.gorillawalker.com/elgin-dufftown-and-surrounding-area-landranger-maps.pdf
    • http://www.gorillawalker.com/big-cats-and-other-animals-their-beauty-dignity-and-survival.pdf
    • http://www.gorillawalker.com/dod-s-improper-use-of-first-and-business-class-airline.pdf
    • http://www.gorillawalker.com/on-politics-and-parks-kathie-and-ed-cox-jr-books.pdf
    • http://www.gorillawalker.com/a-lifelong-love-a-marriage-journal.pdf
    • http://www.gorillawalker.com/journal-of-chemical-physics-vol-47-no-1-1-july.pdf
    • http://www.gorillawalker.com/berlitz-east-european-phrase-book.pdf
    • http://www.gorillawalker.com/outsourcing-kindle-edition.pdf
    • http://www.gorillawalker.com/lonely-planet-discover-london-travel-guide.pdf
    • http://www.gorillawalker.com/contemporary-s-ged-social-studies-contemporary-s-ged-satellite-series.pdf
    • http://www.gorillawalker.com/1-000-italian-words-berlitz-kids-1000-words.pdf
    • http://www.gorillawalker.com/class-meetings-that-matter-k-5-a-year-s-worth.pdf
    • http://www.gorillawalker.com/so-runs-the-world.pdf
    • http://www.gorillawalker.com/policing-stalin-s-socialism-repression-and-social-order-in-the.pdf
    • http://www.gorillawalker.com/writer-s-choice-grammar-practice-workbook-grade-8.pdf
    • http://www.gorillawalker.com/the-lady-taken-part-3.pdf
    • http://www.gorillawalker.com/catskill-summer-things.pdf
    • http://www.gorillawalker.com/canada-s-constitutional-monarchy.pdf
    • http://www.gorillawalker.com/iec-60235-2a-ed-1-0-b-1974-measurement-of.pdf
    • http://www.gorillawalker.com/tinkers-farm-penguin-readers-easystarts.pdf
    • http://www.gorillawalker.com/shah-abbas-the-ruthless-king-who-became-an-iranian-legend.pdf
    • http://www.gorillawalker.com/large-scale-neuronal-theories-of-the-brain-computational-neuroscience.pdf
    • http://www.gorillawalker.com/victory-lane-shady-falls-series-book-1.pdf
    • http://www.gorillawalker.com/business-analytics-for-managers-use-r.pdf
    • http://www.gorillawalker.com/reading-television-new-accents.pdf
    • http://www.gorillawalker.com/photographing-your-family-and-all-the-kids-and-friends-and.pdf
    • http://www.gorillawalker.com/christ-in-isaiah-kindle-edition.pdf
    • http://www.gorillawalker.com/erexas-bantu-lover-german-edition.pdf
    • http://www.gorillawalker.com/vietnamese-colonial-republican-the-political-vision-of-vu-trong-phung.pdf
    • http://www.gorillawalker.com/the-subject-of-freedom-kant-levinas-commonalities-fup.pdf
    • http://www.gorillawalker.com/perceptual-and-emotional-embodiment-foundations-of-embodied-cognition-volume-1.pdf
    • http://www.gorillawalker.com/sheet-music-bewitched-from-1957-musical-pal-joey-rita-hayworth.pdf
    • http://www.gorillawalker.com/history-beyond-the-text-a-student-s-guide-to-approaching.pdf
    • http://www.gorillawalker.com/organ-concerto-in-b-flat-major-hwv-290-full-score.pdf
    • http://www.gorillawalker.com/delmar-s-dental-assisting-video-1-introduction-to-chairside-assisting.pdf
    • http://www.gorillawalker.com/biochemical-evolution-illinois-biological-monographs.pdf
    • http://www.gorillawalker.com/the-book-of-lineage.pdf
    • http://www.gorillawalker.com/rugby-union-for-dummies-kindle-edition.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://calibre-ebook.com
    • 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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