Malicious PDF — malware analysis report

Static analysis result for SHA-256 59bb1cf90bb44745…

MALICIOUS

PDF

46.2 KB Created: 2018-11-26 20:03:28 +03:00 Authoring application: http://www.helpandmanual.com (via wPDF3 by WPCubed GmbH)
MD5: 9b7a618a4cf7346736b2970fc602b7bd SHA-1: 69ce0f1b6d01f8efa5256ccf594c420dc9ebdf13 SHA-256: 59bb1cf90bb4474587f313b4d543f47e3f51829559e3ce7615f625074d1923d1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this document as malicious. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

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/imagined-london-a-tour-of-the-world-s-greatest-fictional.pdf
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    • http://www.gorillawalker.com/terapia-ocupacional-en-geriatr-a-principios-y-pr-ctica-spanish.pdf
    • http://www.gorillawalker.com/phantom-of-the-opera-for-piano-voice-and-guitar.pdf
    • http://www.gorillawalker.com/national-electrical-estimator-book-and-disk-national-electrical-estimator-w.pdf
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    • http://www.gorillawalker.com/understanding-bitcoin-cryptography-engineering-and-economics-the-wiley-finance-series.pdf
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    • http://www.gorillawalker.com/incurable-blues-the-troubles-triumph-of-blues-legend-hubert-sumlin.pdf
    • http://www.gorillawalker.com/the-ultimate-guide-to-sat-grammar-workbook.pdf
    • http://www.gorillawalker.com/the-book-of-hope.pdf
    • http://www.gorillawalker.com/complete-a-to-z-guide-to-earn-over-100-000.pdf
    • http://www.gorillawalker.com/the-need-for-privacy-protections-is-industry-self-regulation-adequate.pdf
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    • http://www.gorillawalker.com/look-at-this-food.pdf
    • http://www.gorillawalker.com/early-christians-in-disarray-contemporary-lds-perspectives-on-the-christian.pdf
    • http://www.gorillawalker.com/marginalia-for-a-natural-history.pdf
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    • http://www.gorillawalker.com/high-noon-the-inside-story-of-scott-mcnealy-and-the.pdf
    • http://www.gorillawalker.com/pocket-map-of-cuba-and-the-world.pdf
    • http://www.gorillawalker.com/the-reward-and-recognition-process-in-total-quality-management.pdf
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    • http://www.gorillawalker.com/como-a-raposinha-salvou-sua-pele-how-the-little-fox.pdf
    • http://www.gorillawalker.com/biomechanics-of-cells-and-tissues-experiments-models-and-simulations-lecture.pdf
    • http://www.gorillawalker.com/wisdom-for-the-ages-regina-classics.pdf
    • http://www.gorillawalker.com/hawaii-end-of-the-rainbow-kindle-edition.pdf
    • http://www.gorillawalker.com/lab-manual-for-boodley-newman-s-the-commercial-greenhouse-3rd.pdf
    • http://www.gorillawalker.com/rhythms-of-life-the-biological-clocks-that-control-the-daily.pdf
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    • http://www.gorillawalker.com/9-staffel-jagdgeschwader-26-the-battle-of-britain-photo-album.pdf
    • http://www.helpandmanual.com
    • http://www.gorillawalker.com/national-electrical-estimator-book-and-disk-national-
    • 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#
    +1 more URL(s)