Malicious PDF — malware analysis report

Static analysis result for SHA-256 a068498cd996e710…

MALICIOUS

PDF

43.7 KB Created: 2018-12-14 20:47:05 +03:00 Authoring application: TeXmacs-1.0.7.3 (via GPL Ghostscript 8.70)
MD5: 550198336d66f9585bad4f8cc7bbac30 SHA-1: 3b042c9180d43ac8be0edc2d962629b6c9029444 SHA-256: a068498cd996e7101201864f6effc4802c37f83008a79e2fd003688d5202f6eb
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating a link farm with 32 external PDF links, predominantly hosted on www.gorillawalker.com. The document body, though heavily obfuscated, contains numerous URLs pointing to various PDF files on the same domain. This suggests a tactic to inflate search engine rankings or to distribute further malicious content disguised as legitimate documents.

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/the-spanishwoman-s-kitchen.pdf
    • http://www.gorillawalker.com/dendroclimatology-progress-and-prospects-developments-in-paleoenvironmental-research-vol-11.pdf
    • http://www.gorillawalker.com/simone-de-beauvoir-the-making-of-an-intellectual-woman.pdf
    • http://www.gorillawalker.com/knight-without-armour-kindle-edition.pdf
    • http://www.gorillawalker.com/legal-thriller-predatory-kill-a-courtroom-drama-novel-courtroom-drama.pdf
    • http://www.gorillawalker.com/the-geometer-s-sketchpad-dynamic-geometry-software-for-exploring-mathematics.pdf
    • http://www.gorillawalker.com/organic-cookbook-making-the-most-of-fresh-and-seasonal-produce.pdf
    • http://www.gorillawalker.com/institutional-constraints-and-policy-choice-an-exploration-of-local-governance.pdf
    • http://www.gorillawalker.com/california-powerball-combinations-volume16.pdf
    • http://www.gorillawalker.com/vitamix-cookbook-not-just-smoothies-super-delicious-super-easy-recipes.pdf
    • http://www.gorillawalker.com/romantic-violence-memoirs-of-an-american-skinhead.pdf
    • http://www.gorillawalker.com/emily-nation.pdf
    • http://www.gorillawalker.com/explore-my-world-nighttime.pdf
    • http://www.gorillawalker.com/3-characteristic-pieces-op-10-mazurka-no-1-bassoon-2.pdf
    • http://www.gorillawalker.com/assault-in-norway-sabotaging-the-nazi-nuclear-bomb.pdf
    • http://www.gorillawalker.com/play-clay-arty-mouse-boost-packs.pdf
    • http://www.gorillawalker.com/large-print-number-search-puzzle-book-volume-1.pdf
    • http://www.gorillawalker.com/marketing-of-smallholder-crops-in-uganda.pdf
    • http://www.gorillawalker.com/first-german-at-school-usborne-first-languages.pdf
    • http://www.gorillawalker.com/lexi-comp-s-pediatric-dosage-handbook-including-neonatal-dosing-drug.pdf
    • http://www.gorillawalker.com/algebraic-sudoku-book-1-a-fun-way-to-develop-enhance.pdf
    • http://www.gorillawalker.com/sweden-and-norway-sketches-and-stories-of-their-scenery-customs.pdf
    • http://www.gorillawalker.com/the-communication-of-catholics-with-schismatics-1947.pdf
    • http://www.gorillawalker.com/biotechnology-projects-for-young-scientists.pdf
    • http://www.gorillawalker.com/how-to-pee-potty-training-for-girls.pdf
    • http://www.gorillawalker.com/die-ursachen-des-kindbettfiebers-und-ihre-entdeckung-durch-i-ph.pdf
    • http://www.gorillawalker.com/riddle-of-the-prairie-bride-mysteries-through-history-kindle-edition.pdf
    • http://www.gorillawalker.com/quick-bedside-prescriber.pdf
    • http://www.gorillawalker.com/david-busch-s-sony-alpha-slt-a55-a33-guide-to.pdf
    • http://www.gorillawalker.com/hot-peas-and-barley-o-children-s-songs-and-games.pdf
    • http://www.gorillawalker.com/diagnosis-and-prediction-the-ima-volumes-in-mathematics-and-its.pdf
    • http://www.gorillawalker.com/openness-unhindered-further-thoughts-of-an-unlikely-convert-on-sexual.pdf
    • http://www.gorillawalker.com/the-cuckold-collection-8-hot-cuckold-stories.pdf
    • http://www.gorillawalker.com/commercial-transactions-secured-financing-cases-materials-problems.pdf
    • http://www.gorillawalker.com/the-exploitation-of-nancy-benoit-vs-hustler.pdf
    • http://www.gorillawalker.com/subalterns-and-sovereigns.pdf
    • http://www.gorillawalker.com/string-builder-book-iii-cello.pdf
    • http://www.gorillawalker.com/centinela-contra-franceses-textos-b.pdf
    • http://www.gorillawalker.com/uglydoll-school-planner.pdf
    • http://www.gorillawalker.com/my-mortal-enemy-vintage-classics.pdf
    • http://www.gorillawalker.com/organic-cookbook-making-the-most-of-fresh-a
    • 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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