Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c85355ef3332009…

MALICIOUS

PDF

42.5 KB Created: 2018-12-14 20:04:42 +03:00 Authoring application: Acrobat 5.0 Image Conversion Plug-in for Windows
MD5: f5659345945862cf017771368bf3488c SHA-1: 7c2fb7097ab68f6536ddacc91c9a660c5969d119 SHA-256: 0c85355ef3332009df89c4fd7187a1dfe7e85c05ee621fa84efb2370bc3f340c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links 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, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond link distribution.

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/sweet-invention-a-history-of-dessert.pdf
    • http://www.gorillawalker.com/examination-of-witnesses-callaghan-s-trial-practice-series.pdf
    • http://www.gorillawalker.com/the-wounded-buzzard-on-christmas-eve-hank-the-cowdog-quality.pdf
    • http://www.gorillawalker.com/the-world-almanac-1937-and-book-of-facts.pdf
    • http://www.gorillawalker.com/shorecliff.pdf
    • http://www.gorillawalker.com/paleo-pressure-cooker-recipes-and-paleo-greek-recipes-2-book.pdf
    • http://www.gorillawalker.com/oil-painting-portraits-dk-art-school.pdf
    • http://www.gorillawalker.com/cross-stitch-activity-packs.pdf
    • http://www.gorillawalker.com/heterocyclic-chemistry-i-principles-three-and-four-membered-heterocycles.pdf
    • http://www.gorillawalker.com/down-every-alley-a-thug-and-criminal-gay-erotica-megapack.pdf
    • http://www.gorillawalker.com/rick-steves-europe-through-the-back-door-2015-the-travel.pdf
    • http://www.gorillawalker.com/walter-canis-inflatus-walter-the-farting-dog-latin-language-edition.pdf
    • http://www.gorillawalker.com/by-jeffery-hatcher-the-art-and-craft-of-playwriting-1st.pdf
    • http://www.gorillawalker.com/the-essential-bicycle-commuter.pdf
    • http://www.gorillawalker.com/lotus-shoes-a-short-story-from-ancient-china.pdf
    • http://www.gorillawalker.com/tutankhamun-s-funeral-metropolitan-museum-of-art.pdf
    • http://www.gorillawalker.com/thru-hiking-will-break-your-heart-an-adventure-on-the.pdf
    • http://www.gorillawalker.com/the-history-of-forgetting-los-angeles-and-the-erasure-of.pdf
    • http://www.gorillawalker.com/godliness-through-discipline.pdf
    • http://www.gorillawalker.com/highbrow-lowbrow-the-emergence-of-cultural-hierarchy-in-america-the.pdf
    • http://www.gorillawalker.com/a-digest-of-the-irish-marriage-law.pdf
    • http://www.gorillawalker.com/aiaa-asme-asce-ahs-31st-structures-structural-dynamics-and-materials.pdf
    • http://www.gorillawalker.com/essential-liberty-first-amendment-battles-for-a-free-press.pdf
    • http://www.gorillawalker.com/jujitsu-and-mixed-martial-arts-basics-kindle-edition.pdf
    • http://www.gorillawalker.com/off-the-wall-at-sardi-s.pdf
    • http://www.gorillawalker.com/trait-de-l-harmonie-reduite-ses-principes-naturels-divis-en.pdf
    • http://www.gorillawalker.com/lantern-fish-glow-in-the-dark-animals.pdf
    • http://www.gorillawalker.com/shadow-of-a-man-andrew-s-influence-on-simon-peter.pdf
    • http://www.gorillawalker.com/keppra-tag-it-cystic-fibrosis-kit-new-approved-an-article.pdf
    • http://www.gorillawalker.com/coming-to-america-a-new-life-in-a-new-land.pdf
    • http://www.gorillawalker.com/sword-of-king-james.pdf
    • http://www.gorillawalker.com/plumbing-fixtures-plumbing-4-kindle-edition.pdf
    • http://www.gorillawalker.com/the-legend-of-sleepy-hollow-dramatized-abridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/history-of-pedlars-in-europe.pdf
    • http://www.gorillawalker.com/supply-chain-management-strategy-planning-and-operation-6th-edition.pdf
    • http://www.gorillawalker.com/wedding-industry-secrets-the-tips-and-tricks-that-will-help.pdf
    • http://www.gorillawalker.com/interchange-level-3-student-s-book-a-with-self-study.pdf
    • http://www.gorillawalker.com/jury-trials-bk-5.pdf
    • http://www.gorillawalker.com/electronically-controlled-fuel-injection-system-strategy-toyota-reviews-tccs-engine.pdf
    • http://www.gorillawalker.com/race-and-ethnicity-taking-sides-clashing-views-in-race-and.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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