Malicious PDF — malware analysis report

Static analysis result for SHA-256 3821df4d0547574b…

MALICIOUS

PDF

41.2 KB Created: 2019-03-17 12:31:47 +03:00 Authoring application: QuarkXPress(tm) 6.1
MD5: c14edc5067772b009ba9a9dccdc2e266 SHA-1: b771fe65510054c52b3ddbc22f9f84570c920c90 SHA-256: 3821df4d0547574b21fff83dbb8a99d705a484efd761896e4e0ce527d6ab360a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the linked domains. The document body was heavily obfuscated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/healing-houses-transforming-sick-houses-into-healthy-homes.pdf
    • http://www.gorillawalker.com/travelers-of-a-hundred-ages.pdf
    • http://www.gorillawalker.com/welding-inspection-technology-workbook.pdf
    • http://www.gorillawalker.com/collins-primary-geography-pupil-book-6.pdf
    • http://www.gorillawalker.com/system-and-revelation-the-philosophy-of-franz-rosenzweig-culture-of.pdf
    • http://www.gorillawalker.com/cop-talk-a-dictionary-of-police-slang.pdf
    • http://www.gorillawalker.com/patterns-in-sports-21st-century-basic-skills-library.pdf
    • http://www.gorillawalker.com/dinosaurs-eyes-on-nature-series.pdf
    • http://www.gorillawalker.com/the-simple-guide-to-six-sigma-wtf-what-the-fact.pdf
    • http://www.gorillawalker.com/rosslyn-hoax.pdf
    • http://www.gorillawalker.com/371-harmonized-chorales-and-69-chorale-melodies-with-figured-bass.pdf
    • http://www.gorillawalker.com/the-rambo-family-tree-volume-1-some-descendants-of-gunnar.pdf
    • http://www.gorillawalker.com/the-rockin-60s-the-people-who-made-the-music-classic.pdf
    • http://www.gorillawalker.com/severe-and-hazardous-weather-an-introduction-to-high-impact-meteorology.pdf
    • http://www.gorillawalker.com/sense-of-wonder.pdf
    • http://www.gorillawalker.com/king-james-bible-word-search-romans-120-word-search-puzzles.pdf
    • http://www.gorillawalker.com/human-motivation-with-infotrac-1-semester-printed-access-card.pdf
    • http://www.gorillawalker.com/marine-engineering-volume-one-two-i-ii.pdf
    • http://www.gorillawalker.com/forever-a-lobster-kind-of-love.pdf
    • http://www.gorillawalker.com/buses-yearbook-1999.pdf
    • http://www.gorillawalker.com/towards-relational-sociology-international-library-of-sociology.pdf
    • http://www.gorillawalker.com/love-flight-transported-by-love-book-4.pdf
    • http://www.gorillawalker.com/in-this-corner-forty-two-world-champions-tell-their-stories.pdf
    • http://www.gorillawalker.com/the-motley-fool-you-have-more-than-you-think-the.pdf
    • http://www.gorillawalker.com/vegan-raw-food-cookbook-50-amazing-raw-food-recipes-for.pdf
    • http://www.gorillawalker.com/the-big-muddy-an-environmental-history-of-the-mississippi-and.pdf
    • http://www.gorillawalker.com/cervical-trauma-seminars-in-spine-surgery-volume-19-number-4.pdf
    • http://www.gorillawalker.com/my-mother-my-son.pdf
    • http://www.gorillawalker.com/descriptive-geometry-9th-edition.pdf
    • http://www.gorillawalker.com/die-familie-selicke-german-edition.pdf
    • http://www.gorillawalker.com/the-rescue-season-the-heroic-story-of-parajumpers-on-the.pdf
    • http://www.gorillawalker.com/tales-of-virtue-a-book-of-right-and-wrong-the.pdf
    • http://www.gorillawalker.com/navy-maintenance-fewer-shipyards-may-be-needed-as-ship-repair.pdf
    • http://www.gorillawalker.com/food-around-the-world-a-cultural-perspective-4th-edition.pdf
    • http://www.gorillawalker.com/the-mystery-of-the-mixed-up-zoo-the-boxcar-children.pdf
    • http://www.gorillawalker.com/a-south-african-night.pdf
    • http://www.gorillawalker.com/the-rise-of-the-dutch-republic-volume-1.pdf
    • http://www.gorillawalker.com/bayesian-econometric-methods-econometric-exercises.pdf
    • http://www.gorillawalker.com/children-animals-exploring-the-roots-of-kindness-cruelty.pdf
    • http://www.gorillawalker.com/river-town-two-years-on-the-yangtze-p-s.pdf
    • http://www.gorill
    • 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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