Malicious PDF — malware analysis report

Static analysis result for SHA-256 62108c613dfad5af…

MALICIOUS

PDF

48.4 KB Created: 2019-03-17 11:33:20 +03:00 Authoring application: - (via Acrobat Distiller 4.0 for Windows)
MD5: d0f61af9081dd8333ad849c2da418384 SHA-1: 5dbb75ab552b05c47b50a2c731f0a4410715fb1a SHA-256: 62108c613dfad5af9b81caaad2a05ecdbbd34ebbdd8891c9c213deda6b978252
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing 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, 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/the-reichsarmee-organisation-flags-and-uniform-supplement-1756-1762.pdf
    • http://www.gorillawalker.com/bids-tenders-and-proposals-winning-business-through-best-practice-bids.pdf
    • http://www.gorillawalker.com/summary-earth-the-sequel-fred-krupp-and-miriam-horn-kindle.pdf
    • http://www.gorillawalker.com/eagle-strike-the-story-of-the-controversial-airborne-assault-on.pdf
    • http://www.gorillawalker.com/101-colors-and-shapes-activities-a-year-of-fun-series.pdf
    • http://www.gorillawalker.com/not-one-dollar-more-how-to-save-3-000-to.pdf
    • http://www.gorillawalker.com/the-15-minute-back-pain-and-neck-pain-management-program.pdf
    • http://www.gorillawalker.com/troubles-des-apprentissages-dictionnaire-pratique-french-edition.pdf
    • http://www.gorillawalker.com/the-japanese-experience-a-short-history-of-japan-history-of.pdf
    • http://www.gorillawalker.com/divine-right-and-democracy-an-anthology-of-political-writing-in.pdf
    • http://www.gorillawalker.com/canadian-family-law-law-in-a-nutshell.pdf
    • http://www.gorillawalker.com/bmw-2002-ultimate-portfolio-1968-1976.pdf
    • http://www.gorillawalker.com/sexing-war-policing-gender-motherhood-myth-and-women-s-political.pdf
    • http://www.gorillawalker.com/really-easy-jazzin-about-fun-pieces-for-oboe.pdf
    • http://www.gorillawalker.com/latino-image-makers-in-hollywood-performers-filmmakers-and-films-since.pdf
    • http://www.gorillawalker.com/colleges-that-change-lives-40-schools-that-will-change-the.pdf
    • http://www.gorillawalker.com/ian-walker-racing-the-man-and-his-cars.pdf
    • http://www.gorillawalker.com/business-planning-for-editorial-freelancers-a-guide-for-new-starters.pdf
    • http://www.gorillawalker.com/mel-bay-studies-in-drum-set-independence-volume-one.pdf
    • http://www.gorillawalker.com/ghost-songs-kindle-edition.pdf
    • http://www.gorillawalker.com/time-will-tell-timeless-series-volume-1.pdf
    • http://www.gorillawalker.com/watkins-mill-factory-on-the-farm.pdf
    • http://www.gorillawalker.com/mountain-doctrine-tibet-s-fundamental-treatise-on-other-emptiness-and.pdf
    • http://www.gorillawalker.com/frankenstein-or-the-modern-prometheus-new-2015-deluxe-edition-with.pdf
    • http://www.gorillawalker.com/organic-farming-source-book.pdf
    • http://www.gorillawalker.com/william-wegman-paintings-drawings-photographs-videotapes.pdf
    • http://www.gorillawalker.com/insight-guide-to-peru-serial.pdf
    • http://www.gorillawalker.com/wernick-s-guide-to-u-s-immigration-and-citizenship-2015.pdf
    • http://www.gorillawalker.com/unpolished-gem-my-mother-my-grandmother-and-me.pdf
    • http://www.gorillawalker.com/applied-longitudinal-data-analysis-for-epidemiology-a-practical-guide-cambridge.pdf
    • http://www.gorillawalker.com/wills-and-probate-teach-yourself-books.pdf
    • http://www.gorillawalker.com/the-impact-of-swc-measures-for-soil-fertility-management-the.pdf
    • http://www.gorillawalker.com/the-walking-dead-vol-2-miles-behind-us.pdf
    • http://www.gorillawalker.com/geothermal-energy-from-theoretical-models-to-exploration-and-development.pdf
    • http://www.gorillawalker.com/alfred-s-basic-adult-all-in-one-course-bk-1.pdf
    • http://www.gorillawalker.com/homo-aestheticus-the-invention-of-taste-in-the-democratic-age.pdf
    • http://www.gorillawalker.com/biomedical-signal-processing-and-signal-modeling.pdf
    • http://www.gorillawalker.com/a-song-of-thanksgiving-a-suite-of-classic-hymns-for.pdf
    • http://www.gorillawalker.com/construction-statistics-annual-2012.pdf
    • http://www.gorillawalker.com/hi-lo-nonfiction-passages-for-struggling-readers-grades-4-150.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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