Malicious PDF — malware analysis report

Static analysis result for SHA-256 68bc1bc43b3176c2…

MALICIOUS

PDF

41.8 KB Created: 2018-11-30 20:29:46 +03:00 Authoring application: Acrobat PDFMaker 8.1 for Word (via Acrobat Distiller 8.2.6 (Windows))
MD5: c2b41cc56f89731f011cf6cbd4027512 SHA-1: c0123ec8825270293652bdb0eee7ca8003cff46e SHA-256: 68bc1bc43b3176c209590de16262498a8d5250464b1c117db092950ea3bde42d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, many of which appear to be SEO-optimized content. This suggests the document is likely part of a link farm or SEO manipulation scheme, potentially distributing malicious content or leading to phishing sites. No scripts were extracted, but the presence of embedded URLs and the ML classification strongly indicate malicious intent.

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/soil-nitrogen.pdf
    • http://www.gorillawalker.com/cataloging-test-results-and-outlook.pdf
    • http://www.gorillawalker.com/calabar-the-concept-and-its-evolution.pdf
    • http://www.gorillawalker.com/florence-mills-harlem-jazz-queen-studies-in-jazz.pdf
    • http://www.gorillawalker.com/grande-polonaise-op-21-accordion-solo-sheet-music.pdf
    • http://www.gorillawalker.com/dr-horrible-anal-sexe-oral-no-importa-principalment-sagnant-catalan.pdf
    • http://www.gorillawalker.com/paleo-lifestyle-snacks-and-sweet-treat-ideas-cookbook-modern-caveman.pdf
    • http://www.gorillawalker.com/thich-nhat-hanh-paintings-by-nicholas-kirsten-honshin-2014-wall.pdf
    • http://www.gorillawalker.com/expert-heads-up-no-limit-hold-em-optimal-and-exploitative.pdf
    • http://www.gorillawalker.com/detection-challenges-in-clinical-diagnostics-rsc-rsc-detection-science.pdf
    • http://www.gorillawalker.com/sports-sabotage-hardy-boys-the-secret-files.pdf
    • http://www.gorillawalker.com/arduino-in-action.pdf
    • http://www.gorillawalker.com/colloquial-chinese-colloquial-series.pdf
    • http://www.gorillawalker.com/love-italian-food-recipes-for-friends-and-family-from-a.pdf
    • http://www.gorillawalker.com/engineering-drawing-with-worked-examples-v-2.pdf
    • http://www.gorillawalker.com/gareth-edwards.pdf
    • http://www.gorillawalker.com/medicaid-financing-crisis-balancing-responsibilities-priorities-and-dollars-aaas-publication.pdf
    • http://www.gorillawalker.com/invincible-microbe-tuberculosis-and-the-never-ending-search-for-a.pdf
    • http://www.gorillawalker.com/corfu-rac-travel-guides.pdf
    • http://www.gorillawalker.com/mobile-application-security.pdf
    • http://www.gorillawalker.com/peripheral-visions-publics-power-and-performance-in-yemen-chicago-studies.pdf
    • http://www.gorillawalker.com/capons-and-caponizing-farmers-bulletin-united-states-department-of-agriculture.pdf
    • http://www.gorillawalker.com/rascal-facing-the-flames.pdf
    • http://www.gorillawalker.com/brothers-on-ice-lorimer-sports-stories.pdf
    • http://www.gorillawalker.com/reunion-al-qadim-rpga-network-adventure.pdf
    • http://www.gorillawalker.com/claimed-by-pleasure-king-of-spades-wonderland-book-2-kindle.pdf
    • http://www.gorillawalker.com/essentials-of-general-organic-biological-chemistry.pdf
    • http://www.gorillawalker.com/assessing-and-guiding-young-children-s-development-and-learning-6th.pdf
    • http://www.gorillawalker.com/tangram-puzzles-466-tricky-shapes-to-confound-astound.pdf
    • http://www.gorillawalker.com/born-lucky-one-d-day-dodger-s-story-rsm-harry.pdf
    • http://www.gorillawalker.com/el-gualeguay-ficciones-spanish-edition.pdf
    • http://www.gorillawalker.com/heartfelt.pdf
    • http://www.gorillawalker.com/double-dexter-a-novel.pdf
    • http://www.gorillawalker.com/oxford-international-primary-english-student-book-5.pdf
    • http://www.gorillawalker.com/wed-under-western-skies-abandoned-almost-a-bride-his-brother.pdf
    • http://www.gorillawalker.com/the-pro-life-choice-debate-historical-guides-to-controversial-issues.pdf
    • http://www.gorillawalker.com/transition-metal-reagents-and-catalysts-innovations-in-organic-synthesis.pdf
    • http://www.gorillawalker.com/series-6-exam-flashcard-study-system-series-6-test-practice.pdf
    • http://www.gorillawalker.com/soul-of-the-world-unlocking-the-secrets-of-time.pdf
    • http://www.gorillawalker.com/the-extraordinary-everglades-jeff-corwin.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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