Malicious PDF — malware analysis report

Static analysis result for SHA-256 754c87f995e654dd…

MALICIOUS

PDF

41.2 KB Created: 2018-11-30 20:30:15 +03:00 Authoring application: Adobe InDesign CS5 (7.0) (via Adobe PDF Library 9.9)
MD5: dd59aadaf132d55145ddfc4fe5ad3ba9 SHA-1: 283e4870dbf0987800043a5725ed2ddaee9559ae SHA-256: 754c87f995e654dd891d797138ab1b86647ffc5932d6dec0a6ecb16924037964
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a malicious intent to manipulate search engine results or redirect users to potentially harmful content. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence score indicate a malicious document, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/new-brain-imaging-techniques-in-psychopharmacology-oxford-medical-publications.pdf
    • http://www.gorillawalker.com/the-identity-of-france-vol-1-history-and-environment-v.pdf
    • http://www.gorillawalker.com/kitty-kitty-bang-bang-a-novel-zane-presents.pdf
    • http://www.gorillawalker.com/for-appearance-sake-the-historical-encyclopedia-of-good-looks-beauty.pdf
    • http://www.gorillawalker.com/the-history-of-dragon-gate-vol-6-deeply-drunk.pdf
    • http://www.gorillawalker.com/me-too.pdf
    • http://www.gorillawalker.com/the-strange-case-of-hellish-nell-the-true-story-of.pdf
    • http://www.gorillawalker.com/visual-analogy-consciousness-as-the-art-of-connecting.pdf
    • http://www.gorillawalker.com/toussaint-s-clause-the-founding-fathers-and-the-haitian-revolution.pdf
    • http://www.gorillawalker.com/dam-breach-modeling-technology-water-science-and-technology-library.pdf
    • http://www.gorillawalker.com/inventing-and-reinventing-the-goddess-contemporary-iterations-of-hindu-deities.pdf
    • http://www.gorillawalker.com/the-imagined-civil-war-popular-literature-of-the-north-and.pdf
    • http://www.gorillawalker.com/usborne-soccer-school.pdf
    • http://www.gorillawalker.com/exploring-color-photography-fifth-edition-focal-press-2011.pdf
    • http://www.gorillawalker.com/steck-vaughn-focus-on-science-student-edition-level-c.pdf
    • http://www.gorillawalker.com/a-la-hora-del-cafe-poesia-con-el-aroma-de.pdf
    • http://www.gorillawalker.com/neuroanatomy-through-clinical-cases-second-edition.pdf
    • http://www.gorillawalker.com/home-made-sweets-candies-and-fudge-how-to-make-them.pdf
    • http://www.gorillawalker.com/a-journal-in-poetry-the-70th-year.pdf
    • http://www.gorillawalker.com/caffeine-drug-library.pdf
    • http://www.gorillawalker.com/esp-ritu-spero-el-spanish-edition.pdf
    • http://www.gorillawalker.com/desecration-london-psychic-book-1.pdf
    • http://www.gorillawalker.com/backward-glass.pdf
    • http://www.gorillawalker.com/alfred-s-teach-yourself-to-play-harmonica-bk-cd.pdf
    • http://www.gorillawalker.com/married-couples-reading-happy-birthday-desire-lust-passion-fantasies-married.pdf
    • http://www.gorillawalker.com/royal-horticultural-society-desk-address-book.pdf
    • http://www.gorillawalker.com/chapter-3-fast-file-physical-activity-and-fitness-glencoe-teen.pdf
    • http://www.gorillawalker.com/beginning-cellist-s-songbook.pdf
    • http://www.gorillawalker.com/handloader-s-digest-12th-edition.pdf
    • http://www.gorillawalker.com/by-optometry-science-techniques-and-clinical-management-second-2nd-edition.pdf
    • http://www.gorillawalker.com/cluster-algebra-and-poisson-geometry-mathematical-surveys-and-monographs.pdf
    • http://www.gorillawalker.com/the-boss-s-bedroom-agenda-harlequin-comics.pdf
    • http://www.gorillawalker.com/ephesians-philippians-and-colossians-new-testament-commentaries-gospel-advocate.pdf
    • http://www.gorillawalker.com/technology-due-diligence-best-practices-for-chief-information-officers-venture.pdf
    • http://www.gorillawalker.com/basic-refrigeration-and-air-conditioning.pdf
    • http://www.gorillawalker.com/introduction-to-profound-prayer.pdf
    • http://www.gorillawalker.com/tundra-john-purkiss-thriller-book-4-kindle-edition.pdf
    • http://www.gorillawalker.com/the-w-e-t-workout-water-exercises-and-techniques-to.pdf
    • http://www.gorillawalker.com/rbrvs-payment-calculator-2007.pdf
    • http://www.gorillawalker.com/visions-of-the-city-utopianism-power-and-politics-in-twentieth.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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