Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a557b027f25f949…

MALICIOUS

PDF

45.3 KB Created: 2018-11-26 20:07:01 +03:00 Authoring application: Microsoft® Word 2013
MD5: 0e18b5cedccd84187f2a8930aaf8e72e SHA-1: 94be506ad35a28495708450cedea7a32284e1c4d SHA-256: 6a557b027f25f9494e3a82e3e930618c2eb1eae2b4ba87587fa2cd351821ed7b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on gorillawalker.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7914

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/munich-travel-guide-collins-traveller.pdf
    • http://www.gorillawalker.com/japanese-gardens-taschen-25th-anniversary.pdf
    • http://www.gorillawalker.com/anatomy-of-the-orbit-and-eye-a-diagrammatic-atlas-volume.pdf
    • http://www.gorillawalker.com/japanese-art-of-stone-appreciation.pdf
    • http://www.gorillawalker.com/how-freud-changed-world-civilization-the-triumph-of-truth.pdf
    • http://www.gorillawalker.com/stravinsky-igor-suite-from-l-histoire-du-soldat-for-violin.pdf
    • http://www.gorillawalker.com/elyrian-brides-vii-tawnya-s-loving-book-seven-of-the.pdf
    • http://www.gorillawalker.com/money-and-banking-exploring-business-and-economics.pdf
    • http://www.gorillawalker.com/to-sail-a-darkling-sea-black-tide-rising-book-2.pdf
    • http://www.gorillawalker.com/road-rules.pdf
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    • http://www.gorillawalker.com/mathematical-methods-of-many-body-quantum-field-theory-chapman-hall.pdf
    • http://www.gorillawalker.com/saints-on-series-vol-ii-saints-popes-and-blesseds-speak.pdf
    • http://www.gorillawalker.com/the-human-body-ken-jennings-junior-genius-guides.pdf
    • http://www.gorillawalker.com/come-with-me-to-the-far-east.pdf
    • http://www.gorillawalker.com/fractal-narrative-about-the-relationship-between-geometries-and-technology-and.pdf
    • http://www.gorillawalker.com/rough-guide-map-andalucia-the-costa-del-sol-rough-guides.pdf
    • http://www.gorillawalker.com/test-r-summer-pk10-progress-in-understanding-mathematics-assessment-puma.pdf
    • http://www.gorillawalker.com/empire-a-very-short-introduction.pdf
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    • http://www.gorillawalker.com/autism-compact-research-series.pdf
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    • http://www.gorillawalker.com/the-toltec-path-of-transformation-embracing-the-four-elements-of.pdf
    • http://www.gorillawalker.com/greek-transport-amphorae-a-petrological-and-archaeological-study-fitch-laboratory.pdf
    • http://www.gorillawalker.com/liberation-theology-the-paradigm-shift.pdf
    • http://www.gorillawalker.com/from-the-ashes-the-rise-of-the-university-of-washington.pdf
    • http://www.gorillawalker.com/air-for-javascript-developers-pocket-guide.pdf
    • http://www.gorillawalker.com/mid-latitude-atmospheric-dynamics-a-first-course.pdf
    • http://www.gorillawalker.com/in-search-of-a-hero-the-life-and-times-of.pdf
    • http://www.gorillawalker.com/blood-a-critique-of-christianity-religion-culture-and-public-life.pdf
    • http://www.gorillawalker.com/mark-antony-a-biography-classical-lives.pdf
    • http://www.gorillawalker.com/the-renegade-writer-a-totally-unconventional-guide-to-freelance-writing.pdf
    • http://www.gorillawalker.com/busy-bodies-claire-malloy-mysteries.pdf
    • http://www.gorillawalker.com/boston-a-guide-book.pdf
    • http://www.gorillawalker.com/schizophrenia-you-re-not-insane-understanding-schizophrenia-misdiagnosis-current-research.pdf
    • http://www.gorillawalker.com/finding-your-way-what-happens-when-you-tell-about-abuse.pdf
    • http://www.gorillawalker.com/new-foundations-of-quantum-mechanics.pdf
    • http://www.gorillawalker.com/c-ntame-una-canci-n-canta-y-cuenta-spanish-edition.pdf
    • http://www.gorillawalker.com/the-royal-palace-institution-in-the-first-millennium-bc-regional.pdf
    • http://www.gorillawalker.com/chemical-principles-in-the-laboratory.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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