Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4981bad0b4f11ad…

MALICIOUS

PDF

43.2 KB Created: 2018-11-30 20:35:24 +03:00 Authoring application: Adobe InDesign CC (Macintosh) (via Adobe PDF Library 10.0.1)
MD5: c98d61c1daa68884b011c21bb50d93f0 SHA-1: ba55f24cc6e2a53aa9ca7e4ba4e20c18f690b189 SHA-256: b4981bad0b4f11ada52ebd95e9d28f04d0a9f27a1e9070ccc7cb876da34e07cf
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a large farm of external links, suggesting a malicious intent to manipulate search engine results or distribute further malware. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the embedded link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8683

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/audsley-s-ornaments.pdf
    • http://www.gorillawalker.com/dr-slump-vol-14-chinese-edition.pdf
    • http://www.gorillawalker.com/friends-with-the-scale-how-to-turn-your-scale-into.pdf
    • http://www.gorillawalker.com/ultimate-warrior-a-life-lived-forever-the-legend-of-a.pdf
    • http://www.gorillawalker.com/captain-billy-s-troopers-a-writer-s-life.pdf
    • http://www.gorillawalker.com/northern-diamonds.pdf
    • http://www.gorillawalker.com/the-technical-development-of-air-cargo-uld-s-onboard-handling.pdf
    • http://www.gorillawalker.com/the-awful-end-of-prince-william-the-silent-the-first.pdf
    • http://www.gorillawalker.com/farewell-to-the-party-of-lincoln.pdf
    • http://www.gorillawalker.com/weber-5e-text-coursepoint-plus-collins-3e-text-package.pdf
    • http://www.gorillawalker.com/essays-in-the-study-of-scientific-discourse-methods-practice-and.pdf
    • http://www.gorillawalker.com/child-bride-the-untold-story-of-priscilla-beaulieu-presley-kindle.pdf
    • http://www.gorillawalker.com/hypnic-jerks.pdf
    • http://www.gorillawalker.com/railroad-accident-report-collision-of-burlington-northern-santa-fe-freight.pdf
    • http://www.gorillawalker.com/eleanor-roosevelt-a-life-of-discovery-newbery-honor-book.pdf
    • http://www.gorillawalker.com/shipwrecks-history-series.pdf
    • http://www.gorillawalker.com/gentrification-in-a-global-context-housing-and-society-series.pdf
    • http://www.gorillawalker.com/responsible-business-a-textbook-for-theory-practice-and-change-digital.pdf
    • http://www.gorillawalker.com/the-tv-schedule-book-four-decades-of-network-programming-from.pdf
    • http://www.gorillawalker.com/seoul-survivors-habits-of-the-house.pdf
    • http://www.gorillawalker.com/shadows-in-the-silence-angelfire-trilogy-quality.pdf
    • http://www.gorillawalker.com/carnival-in-rio-samba-samba-samba.pdf
    • http://www.gorillawalker.com/teaching-children-to-read-the-teacher-makes-the-difference-6th.pdf
    • http://www.gorillawalker.com/johann-sebastian-bach-15-two-part-inventions-for-solo-guitar.pdf
    • http://www.gorillawalker.com/in-god-s-eyes-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/practical-bilingual-dictionary-english-hebrew-hebrew-english-completely-transliterated.pdf
    • http://www.gorillawalker.com/governing-in-europe-effective-and-democratic.pdf
    • http://www.gorillawalker.com/40-ways-anyone-can-build-assets-pack-of-15.pdf
    • http://www.gorillawalker.com/the-british-tariff-for-1853-54-contains-tables-of-the.pdf
    • http://www.gorillawalker.com/prisoner-without-a-name-cell-without-a-number-the-americas.pdf
    • http://www.gorillawalker.com/the-federal-republic-of-germany-and-nato-40-years-after.pdf
    • http://www.gorillawalker.com/corticosteroids-and-peptide-hormones-in-hypertension-serono-symposia-publications-vol.pdf
    • http://www.gorillawalker.com/seventeenth-century-indivisibles-revisited-science-networks-historical-studies.pdf
    • http://www.gorillawalker.com/a-course-of-pure-geometry.pdf
    • http://www.gorillawalker.com/towards-a-postmodern-theory-of-narrative-postmodern-theory-eup.pdf
    • http://www.gorillawalker.com/delicious-gluten-free-cookbook-bundle-quick-and-easy-soup-and.pdf
    • http://www.gorillawalker.com/elephant-6-the-art-visual-culture-magazine-issue-6-spring.pdf
    • http://www.gorillawalker.com/secret-lives-of-seahorses.pdf
    • http://www.gorillawalker.com/2014-gone-with-the-wind-special-edition-wall-calendar.pdf
    • http://www.gorillawalker.com/more-money-than-god.pdf
    • http://www.gorillawalker.com/the-awful-end-of-prince-william-the-silent-the-firs
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.