Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ca61a27087a05fe…

MALICIOUS

PDF

40.9 KB Created: 2018-11-14 08:48:48 +03:00 Authoring application: Adobe InDesign CC 2017 (Macintosh) (via Adobe PDF Library 15.0)
MD5: 63e87197bde17f81953a672d2f1fde33 SHA-1: 5983b9fbf96cccc674a92b235f58f3378422282b SHA-256: 8ca61a27087a05feee927a80f88ff655825c99c633ddc04b7eda3dfa45532c18
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and a critical heuristic for containing a large number of external links. These links point to various PDF files hosted on the domain 'gorillawalker.com'. The sheer volume of these links suggests a link farm or SEO manipulation tactic, potentially used to distribute more malicious content or to improve search engine rankings for malicious sites. No scripts were extracted, and the document body was not parsable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/music-for-two-volume-1-flute-or-oboe-or-violin.pdf
    • http://www.gorillawalker.com/colorado-springs-colorado-easyfinder.pdf
    • http://www.gorillawalker.com/sieben-windst.pdf
    • http://www.gorillawalker.com/critique-of-judgement.pdf
    • http://www.gorillawalker.com/baruch-ata-blessing-you-percussion-part-sacred-jewish-choral-music.pdf
    • http://www.gorillawalker.com/when-when-when-will-it-be-christmas.pdf
    • http://www.gorillawalker.com/aerodynamics-of-wind-turbines.pdf
    • http://www.gorillawalker.com/halfway-to-white.pdf
    • http://www.gorillawalker.com/60-quick-cowls-luxurious-projects-to-knit-in-cloud-and.pdf
    • http://www.gorillawalker.com/la-stella-d-oro-zolotaja-zvjezda-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/cyclopedia-of-applied-electricity-a-general-reference-work-on-direct.pdf
    • http://www.gorillawalker.com/theories-of-money-and-banking-international-library-of-critical-writings.pdf
    • http://www.gorillawalker.com/youtube-founders-steve-chen-chad-hurley-and-jawed-karim-stem.pdf
    • http://www.gorillawalker.com/essential-grammar-for-today-s-writers-students-and-teachers.pdf
    • http://www.gorillawalker.com/micromechanics-of-defects-in-solids-monographs-and-textbooks-on-mechanics.pdf
    • http://www.gorillawalker.com/lynda-benglis-beyond-process.pdf
    • http://www.gorillawalker.com/the-last-algonquin.pdf
    • http://www.gorillawalker.com/the-handmade-loaf-contemporary-recipes-for-the-home-baker.pdf
    • http://www.gorillawalker.com/spot-goes-to-school-color.pdf
    • http://www.gorillawalker.com/handbook-of-hydrocarbon-and-lipid-microbiology.pdf
    • http://www.gorillawalker.com/native-americans-native-americans-set-3.pdf
    • http://www.gorillawalker.com/the-invisible-partnership-kindle-edition.pdf
    • http://www.gorillawalker.com/solid-oil-kindle-edition.pdf
    • http://www.gorillawalker.com/courts-and-criminal-justice-in-america.pdf
    • http://www.gorillawalker.com/a-right-to-offend-free-expression-in-the-twenty-first.pdf
    • http://www.gorillawalker.com/the-electric-baby.pdf
    • http://www.gorillawalker.com/rescue-on-the-oregon-trail-ranger-in-time-1.pdf
    • http://www.gorillawalker.com/shift-shift-series.pdf
    • http://www.gorillawalker.com/videos-on-dvd-with-chapter-test-prep-for-precalculus-concepts.pdf
    • http://www.gorillawalker.com/spending-advertising-money-in-the-digital-age-how-to-navigate.pdf
    • http://www.gorillawalker.com/philosophy-the-great-thinkers.pdf
    • http://www.gorillawalker.com/refugees-and-the-meaning-of-home-cypriot-narratives-of-loss.pdf
    • http://www.gorillawalker.com/lonely-planet-discover-great-britain-travel-guide.pdf
    • http://www.gorillawalker.com/extreme-why-some-people-thrive-at-the-limits.pdf
    • http://www.gorillawalker.com/eleven-prague-corpses-russian-literature-series.pdf
    • http://www.gorillawalker.com/wizards-presents-worlds-and-monsters-d-d-supplement.pdf
    • http://www.gorillawalker.com/the-book-of-exodus-a-critical-theological-commentary.pdf
    • http://www.gorillawalker.com/san-francisco-access-1988-access-guides.pdf
    • http://www.gorillawalker.com/the-encyclopedia-of-duke-basketball.pdf
    • http://www.gorillawalker.com/crosman-arms-company-model-140-147-147bp-1400-rifles-owner.pdf
    • http://www.gorillawalker.com/la-stella-d-oro-zolotaja-
    • 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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