Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfa391a728c4ceec…

MALICIOUS

PDF

41.9 KB Created: 2018-12-15 20:02:20 +03:00 Authoring application: Acrobat PDFMaker 7.0 for Word (via Acrobat Distiller 7.0 (Windows))
MD5: 693e6f389c19c6761f96498dd58255d9 SHA-1: fdf29dd02ecbe75a05a2950f7bd6f4af03d9c2e1 SHA-256: dfa391a728c4ceec65e761816c60da8ef5f14b5fbf251c30aa34892f7c4745ff
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS classifier also flagged the document with high confidence. The embedded URLs point to various PDF documents hosted on the same domain, suggesting a link farm or redirection scheme designed to obscure the ultimate malicious destination. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact final payload.

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/journal-of-a-tour-to-malta-greece-asia-minor-carthage.pdf
    • http://www.gorillawalker.com/the-complete-reporter-fundamentals-of-news-gathering-writing-and-editing.pdf
    • http://www.gorillawalker.com/grundlagen-der-orchestration-teil-1-text-volume-1-german-edition.pdf
    • http://www.gorillawalker.com/clinical-psychiatry-and-the-law.pdf
    • http://www.gorillawalker.com/pie-graphs-21st-century-basic-skills-library.pdf
    • http://www.gorillawalker.com/when-my-mind-wanders-it-brings-back-souvenirs-kindle-edition.pdf
    • http://www.gorillawalker.com/die-rolle-und-funktionsweise-der-europ-ischen-kommission-in-der.pdf
    • http://www.gorillawalker.com/design-guides-for-offshore-structures-green-guide.pdf
    • http://www.gorillawalker.com/curbside-consultation-in-pediatric-dermatology-49-clinical-questions-curbside-consultation.pdf
    • http://www.gorillawalker.com/a-double-barrelled-detective-story.pdf
    • http://www.gorillawalker.com/too-much-schooling-too-little-education-a-paradox-of-black.pdf
    • http://www.gorillawalker.com/abhb-annual-bibliography-of-the-history-of-the-printed-book.pdf
    • http://www.gorillawalker.com/warhammer-daemons-of-chaos-italian-edition.pdf
    • http://www.gorillawalker.com/web-development-and-design-foundations-with-html5-6th-edition.pdf
    • http://www.gorillawalker.com/labour-law-in-canada.pdf
    • http://www.gorillawalker.com/fun-read-2-for-young-teenagers-with-reading-difficulties-including.pdf
    • http://www.gorillawalker.com/chocolate-magnetic-kitchen-calendar-2004.pdf
    • http://www.gorillawalker.com/tano-and-binti.pdf
    • http://www.gorillawalker.com/b-b-chiang-mai-thailand-city-streets-map.pdf
    • http://www.gorillawalker.com/healing-power-of-attunemen-p.pdf
    • http://www.gorillawalker.com/chaucer-the-canterbury-tales-analysing-texts.pdf
    • http://www.gorillawalker.com/immortals-the-calling.pdf
    • http://www.gorillawalker.com/quartet-for-oboe-clarinet-alto-saxophone-and-bassoon-by-arthur.pdf
    • http://www.gorillawalker.com/rowan.pdf
    • http://www.gorillawalker.com/change-of-pace-portland-police-bureau-series-book-3.pdf
    • http://www.gorillawalker.com/challenging-territoriality-in-human-rights-law-building-blocks-for-a.pdf
    • http://www.gorillawalker.com/power-the-essential-works-of-foucault-1954-1984-vol-3.pdf
    • http://www.gorillawalker.com/reawakening-regent-vampire-lords-volume-3.pdf
    • http://www.gorillawalker.com/adding-insult-to-injury.pdf
    • http://www.gorillawalker.com/pillow-princess-part-2-kindle-edition.pdf
    • http://www.gorillawalker.com/shaquille-o-neal-nba-oop-basketball-legends.pdf
    • http://www.gorillawalker.com/my-anecdotal-life.pdf
    • http://www.gorillawalker.com/the-mild-traumatic-brain-injury-workbook-your-program-for-regaining.pdf
    • http://www.gorillawalker.com/dry-skin-and-common-sense.pdf
    • http://www.gorillawalker.com/richmond-fredericksburg-potomac-railroad-the-capital-cities-route.pdf
    • http://www.gorillawalker.com/lavender-springs-spa-worship-leader-guide.pdf
    • http://www.gorillawalker.com/bow-ties-a-practical-guide-men-s-style-series-book.pdf
    • http://www.gorillawalker.com/hamlet-publisher-yale-university-press.pdf
    • http://www.gorillawalker.com/getting-to-maybe-kindle-edition.pdf
    • http://www.gorillawalker.com/lonely-planet-peru-video-videos-vhs-ntsc-vhs-tape.pdf
    • http://www.gorillawalker.com/design-guides-for-offshore-structures-green-guide.p
    • 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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