Malicious PDF — malware analysis report

Static analysis result for SHA-256 54d2b5c296a3e28b…

MALICIOUS

PDF

40.9 KB Created: 2019-03-17 02:24:15 +03:00 Authoring application: - (via Mac OS X 10.6.8 Quartz PDFContext)
MD5: d23072d9dec98d1786c0d2e8a0bfd135 SHA-1: 06995a3cdc5f34e0737da84beb8f95d9ec2bf51a SHA-256: 54d2b5c296a3e28b06026d2c9833b80c5cb5d78b3449362b3bfe2c7e7fb220cf
90 Risk Score

Malware Insights

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

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

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/roots-of-chinese-culture-and-medicine-academy-of-chinese-culture.pdf
    • http://www.gorillawalker.com/in-secret-service-a-novel.pdf
    • http://www.gorillawalker.com/even-this-i-get-to-experience-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/cash-the-barringer-brothers.pdf
    • http://www.gorillawalker.com/practical-business-math-procedures-4th-fourth-edition.pdf
    • http://www.gorillawalker.com/conversations-with-jehovah-s-witnesses-kindle-edition.pdf
    • http://www.gorillawalker.com/linguistic-correlates-of-dichotic-speech-processing-in-language-and-speech.pdf
    • http://www.gorillawalker.com/an-illustrated-history-of-uniforms-from-1775-1783-the-american.pdf
    • http://www.gorillawalker.com/working-musicians-defining-moments-from-the-road-the-studio-and.pdf
    • http://www.gorillawalker.com/aspectos-planetarios-spanish-edition.pdf
    • http://www.gorillawalker.com/landmark-the-inside-story-of-america-s-new-health-care.pdf
    • http://www.gorillawalker.com/cthulhu-britannica-london-box-set.pdf
    • http://www.gorillawalker.com/semilinear-schrodinger-equations-courant-lecture-notes.pdf
    • http://www.gorillawalker.com/in-too-deep-the-39-clues-book-6.pdf
    • http://www.gorillawalker.com/maternal-substance-abuse-and-the-developing-nervous-system.pdf
    • http://www.gorillawalker.com/cops-cabbies.pdf
    • http://www.gorillawalker.com/nevada-study-manual-for-property-and-casualty-insurance-passkey-series.pdf
    • http://www.gorillawalker.com/rivers-walk-kindle-edition.pdf
    • http://www.gorillawalker.com/everyone-s-guide-to-angels-what-are-they-what-does.pdf
    • http://www.gorillawalker.com/mary-meade-s-magic-recipes-for-the-electric-blender.pdf
    • http://www.gorillawalker.com/sudoku-puzzles-for-kids.pdf
    • http://www.gorillawalker.com/research-in-the-experimental-and-clinical-aspects-of-brain-tumors.pdf
    • http://www.gorillawalker.com/monika-k.pdf
    • http://www.gorillawalker.com/the-blonde-brat-kindle-edition.pdf
    • http://www.gorillawalker.com/the-queen-is-in-the-garbage-classic-feminist-writers.pdf
    • http://www.gorillawalker.com/spelling-puzzles-grades-6-7.pdf
    • http://www.gorillawalker.com/the-logic-of-provability.pdf
    • http://www.gorillawalker.com/sticky-branding-12-5-principles-to-stand-out-attract-customers.pdf
    • http://www.gorillawalker.com/flamenco-s-guitar-guide-by-david-leiva-guia-de-la.pdf
    • http://www.gorillawalker.com/mosby-s-dental-hygiene-clinical-comp-std-gd-2nd-08.pdf
    • http://www.gorillawalker.com/mortar-gunnery-fm-23-91-kindle-edition.pdf
    • http://www.gorillawalker.com/manual-of-style-for-contract-drafting.pdf
    • http://www.gorillawalker.com/kashmir-and-the-british-raj-1847-1947.pdf
    • http://www.gorillawalker.com/mapa-de-brasil-y-uruguay.pdf
    • http://www.gorillawalker.com/quick-reference-tables-for-business-math.pdf
    • http://www.gorillawalker.com/overview-of-the-bible-part-1.pdf
    • http://www.gorillawalker.com/get-tet-ein-inspector-vos-thriller-e-book-only-german.pdf
    • http://www.gorillawalker.com/environmental-monitoring-and-characterization.pdf
    • http://www.gorillawalker.com/art-on-sight-the-best-art-walks-in-and-near.pdf
    • http://www.gorillawalker.com/the-graying-of-the-flock-a-new-model-for-ministry.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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