Malicious PDF — malware analysis report

Static analysis result for SHA-256 afcf562c332d7b12…

MALICIOUS

PDF

42.1 KB Created: 2019-04-04 15:15:13 +03:00 Authoring application: Adobe Acrobat 8.0 Combine Files (via Adobe Acrobat 8.0)
MD5: 325be8e41af82c3d3a7a1e02c8a757ec SHA-1: 7c847da3977e470de866f0f189280f6c506a1f8c SHA-256: afcf562c332d7b121f2a0b50124c5bf4318d82497ff497343484acaed164e9a0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF was flagged by a critical heuristic for containing a large number of external links, suggesting a link farm or distribution mechanism. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of embedded URLs points towards an attempt to lure users to malicious content or manipulate search engine rankings.

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/star-trek-federation-the-first-150-years-by-goodman-david.pdf
    • http://www.gorillawalker.com/psy-eft-o-cocain-crack-psy-z-encyclopedia-of-psychological.pdf
    • http://www.gorillawalker.com/undressed-a-gallery-of-fetishwear.pdf
    • http://www.gorillawalker.com/alaskan-glacier-studies-of-the-national-geographic-society-in-the.pdf
    • http://www.gorillawalker.com/the-imperial-way-by-rail-from-peshawar-to-chi.pdf
    • http://www.gorillawalker.com/sculptured-landscapes-and-calligraphy-the-world-s-youngest-world-class.pdf
    • http://www.gorillawalker.com/a-queen-of-tears-caroline-matilde-queen-of-denmark-and.pdf
    • http://www.gorillawalker.com/designer-s-guide-to-color-4-v-4.pdf
    • http://www.gorillawalker.com/alex-cross-s-trial-reprint-edition-by-patterson-james-dilallo.pdf
    • http://www.gorillawalker.com/toxic-boss-blues.pdf
    • http://www.gorillawalker.com/climate-change-shifting-glaciers-deserts-and-climate-belts-the-hazardous.pdf
    • http://www.gorillawalker.com/political-parties-games-and-redistribution.pdf
    • http://www.gorillawalker.com/creating-3-d-animation-the-aardman-book-of-filmmaking.pdf
    • http://www.gorillawalker.com/stay-tuned-television-s-unforgettable-moments.pdf
    • http://www.gorillawalker.com/jin-chinese-opera-aerobics-ten-segments-long-sleeves-with-cd.pdf
    • http://www.gorillawalker.com/jane-s-airport-atc-equipment-1993-94-jane-s-airport.pdf
    • http://www.gorillawalker.com/enigmas-y-misterios-para-dummies-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/devilfish-the-life-times-of-a-poker-legend-paperback-common.pdf
    • http://www.gorillawalker.com/v-monti-czardas-french-horn-piano.pdf
    • http://www.gorillawalker.com/the-skinny-sexy-mind-the-ultimate-french-secret.pdf
    • http://www.gorillawalker.com/mac-os-x-yosemite-guide-how-to-use-mac-os.pdf
    • http://www.gorillawalker.com/thomas-jefferson-musician-and-violinist.pdf
    • http://www.gorillawalker.com/pocket-posh-sudoku-10-100-puzzles.pdf
    • http://www.gorillawalker.com/plum-and-bamboo-china-s-suzhou-chantefable-tradition.pdf
    • http://www.gorillawalker.com/persian-gulf-war-history-s-great-defeats.pdf
    • http://www.gorillawalker.com/the-court-journals-and-letters-of-frances-burney-volume-ii.pdf
    • http://www.gorillawalker.com/mingus-a-critical-biography-a-da-capo-paperback.pdf
    • http://www.gorillawalker.com/i-m-not-a-terrorist-but-i-ve-played-one.pdf
    • http://www.gorillawalker.com/blood-sisters-lesbian-vampire-tales.pdf
    • http://www.gorillawalker.com/the-norton-anthology-of-world-literature-third-edition-vol-f.pdf
    • http://www.gorillawalker.com/irrigation-agriculture-and-income-diversification-irrigation-income-diversification-food-security.pdf
    • http://www.gorillawalker.com/the-you-factor-a-handbook-for-powerful-living.pdf
    • http://www.gorillawalker.com/alliance-descendants-saga-book-6-kindle-edition.pdf
    • http://www.gorillawalker.com/am-i-small-eimai-mikre-children-s-picture-book-english.pdf
    • http://www.gorillawalker.com/the-instructional-design-knowledge-base-theory-research-and-practice.pdf
    • http://www.gorillawalker.com/a-river-of-tears-a-collection-of-inspiration.pdf
    • http://www.gorillawalker.com/nobody-better-better-than-nobody.pdf
    • http://www.gorillawalker.com/learning-to-teach-textbook-interactive-cd-rom.pdf
    • http://www.gorillawalker.com/the-steam-pig.pdf
    • http://www.gorillawalker.com/so-you-want-to-go-to-guam.pdf
    • http://www.gorillawalker.com/designer-s-guide-to-color-
    • 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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