Malicious PDF — malware analysis report

Static analysis result for SHA-256 e83dfb515d5bbf85…

MALICIOUS

PDF

43.8 KB Created: 2019-01-06 08:07:34 +03:00 Authoring application: dvips(k) 5.95a Copyright 2005 Radical Eye Software (via GPL Ghostscript 8.61)
MD5: 77cb7061a017f1c95d5f1410edb429cd SHA-1: 80b9698b7773383a6ce92fbfec00bdb8878ce25b SHA-256: e83dfb515d5bbf85b9f6cebad9d469adb486465d5d14325603ca9644db3158a3
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a large number of external links, all pointing to PDFs hosted on www.gorillawalker.com. This suggests a link farm or SEO manipulation tactic. While no scripts were extracted, the embedded URLs themselves are the primary indicators of malicious intent, likely to drive traffic or distribute further content. The document body is heavily obfuscated and unreadable.

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/buenos-aires-english-spanish-version-3rd-edition-spanish-edition.pdf
    • http://www.gorillawalker.com/drawing-simplified-in-pen-pencil-brush.pdf
    • http://www.gorillawalker.com/wheater-s-basic-histopathology-a-colour-atlas-and-text-3e.pdf
    • http://www.gorillawalker.com/south-africa-a-world-in-one-country-travel-guide.pdf
    • http://www.gorillawalker.com/shanghai-the-architecture-of-china-s-great-urban-center.pdf
    • http://www.gorillawalker.com/superstars-omnibus-i.pdf
    • http://www.gorillawalker.com/danish-arctic-expeditions-1605-to-1620-in-two-books-book.pdf
    • http://www.gorillawalker.com/system-identification-using-noisy-measurements-synthesis-lectures-on-signal-processing.pdf
    • http://www.gorillawalker.com/hall-of-the-silver-threads-book-4-fairy-blue-light.pdf
    • http://www.gorillawalker.com/the-real-eve-modern-man-s-journey-out-of-africa.pdf
    • http://www.gorillawalker.com/handbook-for-remediation-of-petroleum-contaminated-sites-a-risk-based.pdf
    • http://www.gorillawalker.com/critical-care-clinical-companion.pdf
    • http://www.gorillawalker.com/the-2011-import-and-export-market-for-pins-and-needles.pdf
    • http://www.gorillawalker.com/practicable-socialism-essays-on-social-reform.pdf
    • http://www.gorillawalker.com/edward-vii-s-children.pdf
    • http://www.gorillawalker.com/post-world-war-ii-box-camera-photos-from-guam.pdf
    • http://www.gorillawalker.com/god-in-the-shadows-evil-in-god-s-world.pdf
    • http://www.gorillawalker.com/severn-avon-mid-worcestershire-ring-and-cotswold-canals-saul-sapperton.pdf
    • http://www.gorillawalker.com/do-over-an-avon-flare-book.pdf
    • http://www.gorillawalker.com/i-lan-in-di-sun.pdf
    • http://www.gorillawalker.com/law-of-evidence-digital.pdf
    • http://www.gorillawalker.com/electrochemistry-v-topics-in-current-chemistry-volume-170.pdf
    • http://www.gorillawalker.com/gateway-to-the-aesir-book-1-of-the-david-page.pdf
    • http://www.gorillawalker.com/studies-on-modern-scholarship.pdf
    • http://www.gorillawalker.com/homer-the-essential-iliad.pdf
    • http://www.gorillawalker.com/poison-a-dragonian-series-novella-the-dragonian-series.pdf
    • http://www.gorillawalker.com/les-miserables-piano-solos.pdf
    • http://www.gorillawalker.com/perspecta-37-famous-the-yale-architectural-journal-no-37.pdf
    • http://www.gorillawalker.com/embedded-enterprise-and-social-capital-international-perspectives.pdf
    • http://www.gorillawalker.com/computer-methods-in-mechanics-lectures-of-the-cmm-2009-advanced.pdf
    • http://www.gorillawalker.com/great-photography-techniques-flash.pdf
    • http://www.gorillawalker.com/directory-of-state-court-clerks-and-county-courthouses-2015-state.pdf
    • http://www.gorillawalker.com/osteoporosis-dietotherapy-chinese-edition.pdf
    • http://www.gorillawalker.com/desert-god-a-novel-of-ancient-egypt-kindle-edition.pdf
    • http://www.gorillawalker.com/entrenados-mi-m.pdf
    • http://www.gorillawalker.com/al-bukhari-s-authentic-hadiths-menstrual-periods-bk-6.pdf
    • http://www.gorillawalker.com/the-challenge-of-wto-law-collected-essays.pdf
    • http://www.gorillawalker.com/synoptic-memorizer-of-materia-medica-vol-1-and-2-in.pdf
    • http://www.gorillawalker.com/commercial-bank-management-producing-and-selling-financial-services-mcgraw-hill.pdf
    • http://www.gorillawalker.com/dark-visions-conversations-with-the-masters-of-the-horror-film.pdf
    • http://www.gorillawalker.com/syste
    • 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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