Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eef7a1f032a64a0…

MALICIOUS

PDF

44.9 KB Created: 2018-12-15 08:11:23 +03:00 Authoring application: Adobe InDesign CS4 (6.0) (via Adobe PDF Library 9.0)
MD5: b1e97f3cd9871f6ec672735fe3e764be SHA-1: 368cfcc45ad560e154d5ecc34d3b58a95cc604f1 SHA-256: 5eef7a1f032a64a0625733b9e7725ecd4d9da22073cbbaff0bec90a971f33538
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, suggesting a link farm or a method to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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/mary-the-contemplative.pdf
    • http://www.gorillawalker.com/gamilaraay-yuwaalaraay-yuwaalayaay-dictionary.pdf
    • http://www.gorillawalker.com/astrometeorology-planetary-power-in-weather-forecasting.pdf
    • http://www.gorillawalker.com/the-cup-and-the-crown-silver-bowl.pdf
    • http://www.gorillawalker.com/montenegro-travel-guide-attractions-eating-drinking-shopping-places-to-stay.pdf
    • http://www.gorillawalker.com/laboratory-manual-for-principles-of-general-chemistry-6th-edition.pdf
    • http://www.gorillawalker.com/tiara-club-at-silver-towers-11-princess-sophia-and-the.pdf
    • http://www.gorillawalker.com/major-project-construction-contract-guide.pdf
    • http://www.gorillawalker.com/fast-attack-submarine-the-seawolf-class-high-tech-military-weapons.pdf
    • http://www.gorillawalker.com/panzerwrecks-2-german-armour-1944-45.pdf
    • http://www.gorillawalker.com/reader-s-digest-write-better-speak-better.pdf
    • http://www.gorillawalker.com/education-2-0-the-learningweb-revolution-and-the-transformation-of.pdf
    • http://www.gorillawalker.com/essentials-of-electromyography.pdf
    • http://www.gorillawalker.com/emergency-medical-responder-first-on-scene-10th-edition.pdf
    • http://www.gorillawalker.com/the-essential-guide-to-chakras-discover-the-healing-power-of.pdf
    • http://www.gorillawalker.com/maharsi-durvasa-and-sri-durvasa-asrama-kindle-edition.pdf
    • http://www.gorillawalker.com/llangollen-and-montgomery-canals-waterways-world-canal-guides.pdf
    • http://www.gorillawalker.com/joe-pass-jazz-play-along-volume-186-book-cd.pdf
    • http://www.gorillawalker.com/a-comprehensive-treatment-of-q-calculus.pdf
    • http://www.gorillawalker.com/excess-baggage-getting-out-of-your-own-way.pdf
    • http://www.gorillawalker.com/first-picture-math-first-picture-board-books.pdf
    • http://www.gorillawalker.com/michigan-manual-of-plastic-surgery-lippincott-manual-series.pdf
    • http://www.gorillawalker.com/the-book-of-yields-accuracy-in-food-costing-and-purchasing.pdf
    • http://www.gorillawalker.com/la-milagrosa-dieta-del-ph-para-la-diabetes-salud-y.pdf
    • http://www.gorillawalker.com/woodcock-johnson-iv-reports-recommendations-and-strategies.pdf
    • http://www.gorillawalker.com/alien-slavers-ii-breaking-brandi.pdf
    • http://www.gorillawalker.com/football-hooliganism-fan-behaviour-and-crime-contemporary-issues.pdf
    • http://www.gorillawalker.com/the-hellbound-heart-a-novel.pdf
    • http://www.gorillawalker.com/starting-your-career-as-a-musician.pdf
    • http://www.gorillawalker.com/start-windsurfing-right-the-national-standard-for-quality-sailing-instruction.pdf
    • http://www.gorillawalker.com/european-wind-energy-conference-1984-proceedings.pdf
    • http://www.gorillawalker.com/the-art-of-natural-family-planning-premenopause-student-guide.pdf
    • http://www.gorillawalker.com/two-kinds-of-knowledge.pdf
    • http://www.gorillawalker.com/build-your-vocabulary-1-lower-intermediate.pdf
    • http://www.gorillawalker.com/the-air-up-there-more-great-quotations-on-flight.pdf
    • http://www.gorillawalker.com/buttermilk-sky-thorndike-press-large-print-christian-historical-fiction.pdf
    • http://www.gorillawalker.com/studyguide-for-fundamentals-of-microelectronics-by-razavi-behzad.pdf
    • http://www.gorillawalker.com/air-and-water-super-science-experiments.pdf
    • http://www.gorillawalker.com/the-longings-and-limits-of-global-citizenship-education-the-moral.pdf
    • http://www.gorillawalker.com/straight-from-the-heart-my-life-in-politics-and-other.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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