Malicious PDF — malware analysis report

Static analysis result for SHA-256 98afea6c4537657d…

MALICIOUS

PDF

43.3 KB Created: 2019-01-06 08:03:01 +03:00 Authoring application: Adobe Acrobat Pro 10.0.0 (via ESP Ghostscript 7.07)
MD5: 74c02cb34a8fbb78c935d8032ca95fb6 SHA-1: f1e3ba541b503b0ffe4de08e0bebd18c33f8bfa5 SHA-256: 98afea6c4537657d9bb3d7863fcf7f988800cc71862efea521ef881ed9dd3fb2
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier and contains a significant number of embedded URLs, indicating a link farm. This suggests the primary purpose is to redirect users to potentially malicious external sites. No scripts were extracted, and the document body was truncated, limiting further analysis of specific lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

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/the-beast-livewire-chillers.pdf
    • http://www.gorillawalker.com/paleoclimates-understanding-climate-change-past-and-present.pdf
    • http://www.gorillawalker.com/christus-op-97-vocal-score-qty-2-a2666.pdf
    • http://www.gorillawalker.com/a-history-of-trinidad-and-tobago-in-the-20th-century.pdf
    • http://www.gorillawalker.com/your-career-how-to-make-it-happen-with-career-transitions.pdf
    • http://www.gorillawalker.com/the-fundamentalist-mindset-psychological-perspectives-on-religion-violence-and-history.pdf
    • http://www.gorillawalker.com/family-friends-cpr.pdf
    • http://www.gorillawalker.com/cotton-basic-inorganic-chemistry.pdf
    • http://www.gorillawalker.com/robert-asprin-s-myth-quoted-myth-adventures.pdf
    • http://www.gorillawalker.com/love-s-story-told-a-life-of-henry-a-murray.pdf
    • http://www.gorillawalker.com/leadership-and-negotiation-in-the-middle-east.pdf
    • http://www.gorillawalker.com/bills-of-lading-a-guide-to-good-practice.pdf
    • http://www.gorillawalker.com/cooperative-learning-grammar.pdf
    • http://www.gorillawalker.com/maghella-n-19-le-tette-dell-esorcista-italian-edition.pdf
    • http://www.gorillawalker.com/embedded-system-applications.pdf
    • http://www.gorillawalker.com/the-crone-women-of-age-wisdom-and-power.pdf
    • http://www.gorillawalker.com/see-in-yonder-manger-low-sheet-music-2-part-choir.pdf
    • http://www.gorillawalker.com/a-treasury-of-foolishly-forgotten-americans-pirates-skinflints-patriots-and.pdf
    • http://www.gorillawalker.com/tolstoy-in-riyadh-a-story-of-a-teacher-and-her.pdf
    • http://www.gorillawalker.com/coacervater-artificial-life-creation-illustrated-book-in-japanese-and-english.pdf
    • http://www.gorillawalker.com/the-gate-to-the-hebrew-arabic-and-syriac-unlocked-by.pdf
    • http://www.gorillawalker.com/administracion-universitario-spanish-edition.pdf
    • http://www.gorillawalker.com/top-secret-meat-pie-how-to-make-an-authentic-maritime.pdf
    • http://www.gorillawalker.com/leading-for-change-race-intimacy-and-leadership-on-divided-university.pdf
    • http://www.gorillawalker.com/surveillance-and-monitoring-of-near-surface-disposal-facilities-for-radioactive.pdf
    • http://www.gorillawalker.com/the-ultimate-guide-to-whisky.pdf
    • http://www.gorillawalker.com/cplr-mckinney-s-new-york-civil-practice-law-and-rules.pdf
    • http://www.gorillawalker.com/education-and-curricular-perspectives-in-the-qur-an.pdf
    • http://www.gorillawalker.com/eggceptional-eggs-focus.pdf
    • http://www.gorillawalker.com/health-and-safety-enforcement-law-and-practice.pdf
    • http://www.gorillawalker.com/1991-selected-standards-on-professional-responsibility-including-california-rules.pdf
    • http://www.gorillawalker.com/explanatory-notes-for-the-geological-map-of-southwest-ghana-1.pdf
    • http://www.gorillawalker.com/what-they-don-t-know.pdf
    • http://www.gorillawalker.com/my-family-and-me-a-memory-scrapbook-for-kids.pdf
    • http://www.gorillawalker.com/myth-adventures-two-bk-2.pdf
    • http://www.gorillawalker.com/clashes-air-combat-over-north-vietnam-1965-1972.pdf
    • http://www.gorillawalker.com/two-strange-beasts-leviathan-and-behemoth-in-the-second-temple.pdf
    • http://www.gorillawalker.com/simply-ming-in-your-kitchen-80-recipes-to-watch-learn.pdf
    • http://www.gorillawalker.com/air-for-violin-and-piano.pdf
    • http://www.gorillawalker.com/planet-name-game-dr-seuss-cat-in-the-hat-step.pdf
    • http://www.gorillawalker.com/a-history-of-trinidad-and-tobago-in-the-2
    • 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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