Malicious PDF — malware analysis report

Static analysis result for SHA-256 52af2318a0778327…

MALICIOUS

PDF

45.7 KB Created: 2019-02-14 08:13:04 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 7.0 (Windows))
MD5: 228c87f68e0ba08016bc1ade85e9c9c1 SHA-1: 9d5685d7cb2de8bd7d883c43bb82dc20c309e25f SHA-256: 52af2318a077832710e6c873118858eb1bfbdcdde766e66dd20effd6599efed6
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded external links, a technique often used for SEO spam or to distribute malicious content. The document body itself is heavily obfuscated and contains numerous URLs pointing to various PDF files on the 'gorillawalker.com' domain. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8974

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/fruit-infused-water-make-supercharged-vitamin-water-that-taste-great.pdf
    • http://www.gorillawalker.com/exploring-the-virgin-islands-1st-ed.pdf
    • http://www.gorillawalker.com/rockfall-characterization-and-control.pdf
    • http://www.gorillawalker.com/having-his-babies-bwwm-pregnancy-erotic-romance.pdf
    • http://www.gorillawalker.com/fiendish-sudoku-100-deadly-difficult-sudoku-puzzles.pdf
    • http://www.gorillawalker.com/sparrow-hawk-red-new-cover.pdf
    • http://www.gorillawalker.com/why-our-children-can-t-read-and-what-we-can.pdf
    • http://www.gorillawalker.com/transnational-cinema-and-ideology-representing-religion-identity-and-cultural-myths.pdf
    • http://www.gorillawalker.com/20-essential-questions-corporate-directors-should-ask-about-strategy-kindle.pdf
    • http://www.gorillawalker.com/san-antonio-v-rodriguez-and-the-pursuit-of-equal-education.pdf
    • http://www.gorillawalker.com/speed-up-your-chinese-strategies-to-avoid-common-errors-speed.pdf
    • http://www.gorillawalker.com/the-artistry-of-fundamentals-for-band-e-flat-alto-saxophone.pdf
    • http://www.gorillawalker.com/rand-mcnally-greater-boston-eastern-massachusetts.pdf
    • http://www.gorillawalker.com/the-unofficial-guide-to-flipping-properties-unofficial-guides.pdf
    • http://www.gorillawalker.com/chicken-pickin-the-vocabulary-of-the-country-guitar-masters.pdf
    • http://www.gorillawalker.com/2015-international-swimming-pool-code-commentary.pdf
    • http://www.gorillawalker.com/why-electoral-integrity-matters.pdf
    • http://www.gorillawalker.com/spanish-eyewitness-travel-guide-phrase-books.pdf
    • http://www.gorillawalker.com/scrabble-puzzles-volume-2.pdf
    • http://www.gorillawalker.com/schott-corelli-arcangelo-la-follia-op-5-12-treble-recorder.pdf
    • http://www.gorillawalker.com/measuring-welfare-beyond-economics-the-genuine-progress-of-hong-kong.pdf
    • http://www.gorillawalker.com/after-everest-inside-the-private-world-of-edmund-hillary.pdf
    • http://www.gorillawalker.com/dachshunds-blastoff-readers-level-2.pdf
    • http://www.gorillawalker.com/buddhist-iconography-in-the-butsuzozui-of-hidenobu.pdf
    • http://www.gorillawalker.com/the-road-to-valley-forge-how-washington-built-the-army.pdf
    • http://www.gorillawalker.com/an-electron-microscope-for-practical-laboratory-service.pdf
    • http://www.gorillawalker.com/how-to-get-everything-done-and-still-have-a-life.pdf
    • http://www.gorillawalker.com/teaching-english-to-young-learners-critical-issues-in-language-teaching.pdf
    • http://www.gorillawalker.com/it-s-your-hormones-the-women-s-complete-guide-to.pdf
    • http://www.gorillawalker.com/gwen-stefani-blue-banner-biographies.pdf
    • http://www.gorillawalker.com/the-ultimate-teen-book-guide.pdf
    • http://www.gorillawalker.com/mrs-miracle-g-k-hall-romance.pdf
    • http://www.gorillawalker.com/grow-hair-fast-7-steps-to-a-new-head-of.pdf
    • http://www.gorillawalker.com/susan-and-gina-s-strange-night-on-the-town.pdf
    • http://www.gorillawalker.com/basic-and-clinical-biostatistics-5-e-set.pdf
    • http://www.gorillawalker.com/self-adaptive-heuristics-for-evolutionary-computation-studies-in-computational-intelligence.pdf
    • http://www.gorillawalker.com/life-and-health-insurance-texas-state-law-supplement-kaplan-financial.pdf
    • http://www.gorillawalker.com/computer-validation-compliance-a-quality-assurance-perspective.pdf
    • http://www.gorillawalker.com/probiotic-bacterial-strain-for-dental-caries-prevention-selection-of-potent.pdf
    • http://www.gorillawalker.com/life-the-hidden-world-of-secret-societies.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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