Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf250d835df11e00…

MALICIOUS

PDF

41.8 KB Created: 2018-11-23 08:01:16 +03:00 Authoring application: Adobe InDesign CS2 (4.0) (via Adobe PDF Library 7.0)
MD5: 732803e0a5cd451ccdd83d3cddff1840 SHA-1: 07011c4c8e4089653baa289df68bd001f612f9e6 SHA-256: cf250d835df11e0071226e158e8d62c7002d5fcc38e8742cf4d238550c882833
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a significant number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. The document body itself appears to be malformed or encrypted, providing no direct clues to its intent beyond the embedded links.

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/complete-idiot-s-guide-to-tax-free-investing.pdf
    • http://www.gorillawalker.com/embrace-and-bloom-hentai.pdf
    • http://www.gorillawalker.com/old-sweet-songs-a-prairie-home-companion-1974-1976-a.pdf
    • http://www.gorillawalker.com/the-olive-tree.pdf
    • http://www.gorillawalker.com/antipredator-defenses-in-birds-and-mammals-interspecific-interactions.pdf
    • http://www.gorillawalker.com/the-macro-economy-today.pdf
    • http://www.gorillawalker.com/popular-music-culture-the-key-concepts-routledge-key-guides.pdf
    • http://www.gorillawalker.com/virginia-atlas-and-gazetteer-virginia-atlas-gazeteer.pdf
    • http://www.gorillawalker.com/functional-verification-of-dynamically-reconfigurable-fpga-based-systems.pdf
    • http://www.gorillawalker.com/romance-of-the-three-kingdoms-four-volumes-chinese-edition.pdf
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    • http://www.gorillawalker.com/the-rhine-end-to-end-andermatt-to-basel-pt-1.pdf
    • http://www.gorillawalker.com/law-of-employment.pdf
    • http://www.gorillawalker.com/management-of-temporomandibular-disorders-and-occlusion-6e-6th-edition-by.pdf
    • http://www.gorillawalker.com/the-mighty-skullboy-army-2nd-edition-volume-1.pdf
    • http://www.gorillawalker.com/reporting-technical-information-11th-eleventh-edition.pdf
    • http://www.gorillawalker.com/rock-keyboard-the-complete-guide-with-cd-hal-leonard-keyboard.pdf
    • http://www.gorillawalker.com/sex-and-ethics-in-spanish-cinema.pdf
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    • http://www.gorillawalker.com/campsite-to-kitchen-tastes-and-traditions-from-america-s-great.pdf
    • http://www.gorillawalker.com/the-reluctant-swordsman-the-seventh-sword.pdf
    • http://www.gorillawalker.com/a-history-of-gold-and-money-1450-1920-verso-world.pdf
    • http://www.gorillawalker.com/life-is-what-you-make-it-find-your-own-path.pdf
    • http://www.gorillawalker.com/carte-routi-re-italie-ii-v-n-tie.pdf
    • http://www.gorillawalker.com/against-butterflies.pdf
    • http://www.gorillawalker.com/push-button-fitness-dvds-that-help-dancers-stretch-and-tone.pdf
    • http://www.gorillawalker.com/orlando-innamorato-di-matteo-m-bojardo-volume-2-italian-edition.pdf
    • http://www.gorillawalker.com/asian-economic-systems.pdf
    • http://www.gorillawalker.com/the-upside-down-constitution.pdf
    • http://www.gorillawalker.com/in-search-of-a-vision-a-boner-book.pdf
    • http://www.gorillawalker.com/moving-to-puerto-rico-living-on-the-island-of-enchantment.pdf
    • http://www.gorillawalker.com/helicopter-evolution-a-collection-of-vintage-rotorcraft-photographs.pdf
    • http://www.gorillawalker.com/life-story.pdf
    • http://www.gorillawalker.com/the-betsy-tacy-companion-a-biography-of-maud-hart-lovelace.pdf
    • http://www.gorillawalker.com/acca-p6-irish-tax-practice-and-revision-kit.pdf
    • http://www.gorillawalker.com/new-bern-tales-from-the-inner-banks-american-chronicles.pdf
    • http://www.gorillawalker.com/campeones-204-champions-campeones-champions-spanish-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://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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