Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda0e87d207bb608…

MALICIOUS

PDF

33.1 KB Created: 2019-09-15 17:45:22 +03:00 Authoring application: Writer (via OpenOffice.org 1.1.2)
MD5: b6c06893393313f81a851be5c1ff0604 SHA-1: fccd2c284da64c0e956b10d01cb83d280fdfaeaf SHA-256: bda0e87d207bb6083b544112d44b0b3158b95aedecec75f7f9f573b836c6e2b3
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. A critical heuristic identified a large number of external PDF links, suggesting a link farm or a method to distribute malicious content. The embedded URLs point to various PDF documents hosted on www.gorillawalker.com. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/31-escritura-que-todo-l.pdf
    • http://www.gorillawalker.com/the-acquisition-of-hebrew-the-crosslinguistic-study-of-language-acquisition.pdf
    • http://www.gorillawalker.com/lightposts-for-living-the-art-of-choosing-a-joyful-life.pdf
    • http://www.gorillawalker.com/the-alternative-dispute-resolution-practice-guide-2-volume-set.pdf
    • http://www.gorillawalker.com/the-art-of-asking-ask-better-questions-get-better-answers.pdf
    • http://www.gorillawalker.com/the-long-twelfth-century-view-of-the-anglo-saxon-past.pdf
    • http://www.gorillawalker.com/the-wandering-scholars-of-the-middle-ages.pdf
    • http://www.gorillawalker.com/veterinary-and-animal-ethics-proceedings-of-the-first-international-conference.pdf
    • http://www.gorillawalker.com/federal-taxation-comprehensive-topics-2015.pdf
    • http://www.gorillawalker.com/my-kingdom-of-books-an-autobiography.pdf
    • http://www.gorillawalker.com/nate-the-great-and-the-fishy-prize.pdf
    • http://www.gorillawalker.com/are-we-a-hair-s-breadth-from-disaster-fire-cable.pdf
    • http://www.gorillawalker.com/street-deceit.pdf
    • http://www.gorillawalker.com/daniel-beltra-spill.pdf
    • http://www.gorillawalker.com/blue-book-pocket-guide-for-colt-dates-of-manufacture.pdf
    • http://www.gorillawalker.com/sanity-madness-and-the-family-families-of-schizophrenics-pelican.pdf
    • http://www.gorillawalker.com/heath-pre-algebra.pdf
    • http://www.gorillawalker.com/craft-beer-for-the-homebrewer-recipes-from-america-s-top.pdf
    • http://www.gorillawalker.com/what-s-so-funny-about-faith-a-memoir-from-the.pdf
    • http://www.gorillawalker.com/the-search-for-wondla.pdf
    • http://www.gorillawalker.com/adult-children-of-alcoholics-expanded-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/the-dialogical-imperative-a-christian-reflection-on-interfaith-encounter-faith.pdf
    • http://www.gorillawalker.com/a-bracing-life-kindle-edition.pdf
    • http://www.gorillawalker.com/dialogue-the-mixed-game-dialogue-studies.pdf
    • http://www.gorillawalker.com/the-insiders-guide-to-florida-keys-and-key-west-4th.pdf
    • http://www.gorillawalker.com/handbook-of-polymers-for-pharmaceutical-technologies-biodegradable-polymers-volume-3.pdf
    • http://www.gorillawalker.com/neuroscience-for-counselors-and-therapists-integrating-the-sciences-of-mind.pdf
    • http://www.gorillawalker.com/children-of-the-park-the-ghosts-in-strzyzow-poland.pdf
    • http://www.gorillawalker.com/junkbots-bugbots-and-bots-on-wheels-building-simple-robots-with.pdf
    • http://www.gorillawalker.com/sir-henry-morton-stanley-confederate.pdf
    • http://www.gorillawalker.com/the-word-as-scalpel-a-history-of-medical-sociology.pdf
    • http://www.gorillawalker.com/building-code-basics-residential-based-on-the-2006-international-residential.pdf
    • http://www.gorillawalker.com/science-experiments-on-file-vol-2.pdf
    • http://www.gorillawalker.com/lost-and-found-in-san-francisco.pdf
    • http://www.gorillawalker.com/silicon-based-millimetre-wave-technology-volume-174-advances-in-imaging.pdf
    • http://www.gorillawalker.com/tourmaline.pdf
    • http://www.gorillawalker.com/small-scale-gas-to-liquid-fuel-synthesis.pdf
    • http://www.gorillawalker.com/itazura-na-kiss-volume-11-manga.pdf
    • http://www.gorillawalker.com/the-disassembled-man.pdf
    • http://www.gorillawalker.com/lavender-springs-spa-director-guide.pdf
    • http://www.gorillawalker.com/my-kingdom-of-book
    • 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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