Malicious PDF — malware analysis report

Static analysis result for SHA-256 6330995f6f7e21eb…

MALICIOUS

PDF

41.4 KB Created: 2018-11-23 08:00:24 +03:00 Authoring application: Adobe InDesign CS (3.0.1) (via Adobe PDF Library 6.0)
MD5: 61b3129afe2239091e40a14e0f274234 SHA-1: f1845b92c3b829841f5828cae0aa5bf0e6f77cad SHA-256: 6330995f6f7e21ebd94f1e86a018b6ff245e0ef21ac85ba7f38257fed4ecbf6e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ClamAV as a dropper and a machine learning model indicated maliciousness. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links, with the first identified link being http://www.gorillawalker.com/dictionary-of-philippine-folk-beliefs-and-customs.pdf. Although no scripts were explicitly extracted, the nature of the PDF and the numerous external links suggest it is designed to redirect users to potentially malicious content or for SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7266616-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7266616-0
  • 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/dictionary-of-philippine-folk-beliefs-and-customs.pdf
    • http://www.gorillawalker.com/stephen-hopkins-a-rhode-island-statesman.pdf
    • http://www.gorillawalker.com/milk-glass-moon-a-big-stone-gap-novel.pdf
    • http://www.gorillawalker.com/wild-game-gourmet-cooking-critters-for-dinner-refined-road-kill.pdf
    • http://www.gorillawalker.com/vocabulary-games-activities-2.pdf
    • http://www.gorillawalker.com/applications-of-lie-s-theory-of-ordinary-and-partial-differential.pdf
    • http://www.gorillawalker.com/the-shawshank-redemption-screenplay-notes-nhb-shooting-scripts.pdf
    • http://www.gorillawalker.com/disturbance-observer-based-control-methods-and-applications.pdf
    • http://www.gorillawalker.com/optical-fiber-telecommunications-vol-5-part-b-systems-and-networks.pdf
    • http://www.gorillawalker.com/japanese-style-tattoo-art-revisiting-traditional-themes.pdf
    • http://www.gorillawalker.com/pocket-havamal-benjamin-thorpe-version-faux-leather.pdf
    • http://www.gorillawalker.com/the-tragedy-of-pudd-nhead-wilson-easyread-large-bold-edition.pdf
    • http://www.gorillawalker.com/public-management-reform-a-comparative-analysis-new-public-management-governance.pdf
    • http://www.gorillawalker.com/handbook-of-research-on-the-psychology-of-mathematics-education.pdf
    • http://www.gorillawalker.com/macroeconomics-policy-and-practice-pearson-series-in-economics.pdf
    • http://www.gorillawalker.com/single-girls-boxed-set.pdf
    • http://www.gorillawalker.com/resurrection-s-children.pdf
    • http://www.gorillawalker.com/the-coaching-parent-help-your-children-realise-their-potential-by.pdf
    • http://www.gorillawalker.com/symptoms-of-unknown-origin-a-medical-odyssey.pdf
    • http://www.gorillawalker.com/elementary-linear-algebra-a-matrix-approach-elementary-linear-algebra.pdf
    • http://www.gorillawalker.com/changing-the-face-of-power-women-in-the-u-s.pdf
    • http://www.gorillawalker.com/the-shaping-of-the-modern-middle-east.pdf
    • http://www.gorillawalker.com/macbeth-the-graphic-shakespeare.pdf
    • http://www.gorillawalker.com/real-raw-food-meal-replacement-smoothie-recipes.pdf
    • http://www.gorillawalker.com/a-hero-ain-t-nothin-but-a-sandwich.pdf
    • http://www.gorillawalker.com/i-m-pregnant.pdf
    • http://www.gorillawalker.com/bruder-schweigen-the-story-of-the-silent-brothers-volume-1.pdf
    • http://www.gorillawalker.com/two-shoes-new-shoes-nursey-collection.pdf
    • http://www.gorillawalker.com/the-drawings-of-toulouse-lautrec-master-draughtsman-series.pdf
    • http://www.gorillawalker.com/paris-1919-six-months-that-changed-the-world-kindle-edition.pdf
    • http://www.gorillawalker.com/benjamin-s-parasite.pdf
    • http://www.gorillawalker.com/travel-journal-my-trip-to-kenya.pdf
    • http://www.gorillawalker.com/modern-residential-and-commercial-electrical-wiring.pdf
    • http://www.gorillawalker.com/fundamentals-of-5g-mobile-networks.pdf
    • http://www.gorillawalker.com/judas-maccabaeus-hwv-63-act-iii-aria-father-of-heaven.pdf
    • http://www.gorillawalker.com/rudolf-hess-his-betrayal-and-murder.pdf
    • http://www.gorillawalker.com/african-american-legislators-in-the-american-states.pdf
    • http://www.gorillawalker.com/leyendo-el-evangelio-segunda-reimpresion-vida-de-nuestro-se-or.pdf
    • http://www.gorillawalker.com/laminated-peru-map-by-borch-english-spanish-french-italian-and.pdf
    • http://www.gorillawalker.com/urban-design-handbook-techniques-and-working-methods-norton-book-for.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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