Malicious PDF — malware analysis report

Static analysis result for SHA-256 45170428b2e13671…

MALICIOUS

PDF

42.7 KB Created: 2018-12-08 04:06:19 +03:00 Authoring application: calibre 0.9.13 [http://calibre-ebook.com]
MD5: fe5934cf21a9a7736796784c0e1c71f9 SHA-1: 7e6233dea945613c5a269d3de3945c48840bbdf3 SHA-256: 45170428b2e13671105efbc1f2262358cc97db8c4659c9d3f369b8af8ea801a5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting the document's primary purpose is to distribute or link to other potentially malicious content. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8698

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/baby-shower-fun.pdf
    • http://www.gorillawalker.com/kaplan-gre-exam-math-workbook-kaplan-gre-math-workbook.pdf
    • http://www.gorillawalker.com/advanced-mechanics-of-materials-and-applied-elasticity-5th-edition.pdf
    • http://www.gorillawalker.com/bergman-on-bergman.pdf
    • http://www.gorillawalker.com/cook-freeze-150-delicious-dishes-to-serve-now-and-later.pdf
    • http://www.gorillawalker.com/intertidal-ecology.pdf
    • http://www.gorillawalker.com/philosophy-traditional-and-experimental-readings.pdf
    • http://www.gorillawalker.com/classic-techniques-for-watercolour-landscapes.pdf
    • http://www.gorillawalker.com/como-escribir-guiones-de-television-narrando-con-imagenes-spanish-edition.pdf
    • http://www.gorillawalker.com/laboratory-methods-in-enzymology-dna-volume-529.pdf
    • http://www.gorillawalker.com/100-classic-cocktails-tiny-folio.pdf
    • http://www.gorillawalker.com/a-blessing-and-a-curse-autism-and-me.pdf
    • http://www.gorillawalker.com/space-and-self-in-early-modern-european-cultures-ucla-clark.pdf
    • http://www.gorillawalker.com/the-lean-startup-how-today-s-entrepreneurs-use-continuous-innovation.pdf
    • http://www.gorillawalker.com/statistical-analysis-of-reliability-data-statistics-texts.pdf
    • http://www.gorillawalker.com/frommer-s-bed-and-breakfast-in-the-mid-atlantic-a.pdf
    • http://www.gorillawalker.com/o-el-kitsch-de-lujo-christian-lacroix-dise.pdf
    • http://www.gorillawalker.com/competitive-mindstorms-a-complete-guide-to-robotic-sumo-using-lego.pdf
    • http://www.gorillawalker.com/feminist-interpretations-of-john-dewey-re-reading-the-canon.pdf
    • http://www.gorillawalker.com/the-road-to-al-qaeda-the-story-of-bin-laden.pdf
    • http://www.gorillawalker.com/grey-daze-a-lance-underphal-mystery.pdf
    • http://www.gorillawalker.com/ama-delegates-cheer-call-for-regulatory-relief-brief-article-an.pdf
    • http://www.gorillawalker.com/when-globalization-fails-the-rise-and-fall-of-pax-americana.pdf
    • http://www.gorillawalker.com/capital-bride-matchmaker-co-volume-1.pdf
    • http://www.gorillawalker.com/ripper-notes-murder-by-numbers.pdf
    • http://www.gorillawalker.com/6-chord-songbook-bob-dylan-music-kindle-edition.pdf
    • http://www.gorillawalker.com/java-8-lambdas-functional-programming-for-the-masses.pdf
    • http://www.gorillawalker.com/environmental-biotechnology-principles-and-applications-bruce-e-rittmann-perry-l.pdf
    • http://www.gorillawalker.com/siemens-nx-8-8-5-surface-design-a-step-by.pdf
    • http://www.gorillawalker.com/makunouchi-deluxe-vol-1.pdf
    • http://www.gorillawalker.com/recent-advances-in-structural-dynamics-papers-presented-at-an-international.pdf
    • http://www.gorillawalker.com/it-s-a-dog-s-life-snoopy-peanuts.pdf
    • http://www.gorillawalker.com/specification-driven-product-development.pdf
    • http://www.gorillawalker.com/the-healer-messiah-turning-enemies-into-trustworthy-opponents.pdf
    • http://www.gorillawalker.com/les-traits-caracteristiques-de-la-property-law-anglo-americaine-le.pdf
    • http://www.gorillawalker.com/scarlet-night-killing-time-book-2.pdf
    • http://www.gorillawalker.com/clementines-a-collection-of-poems.pdf
    • http://www.gorillawalker.com/footrot-flats-14-the-footrot-flats.pdf
    • http://www.gorillawalker.com/venice-desired-convergences-inventories-of-the-present.pdf
    • http://www.gorillawalker.com/africa-east-coast-mozambique-port-of-beira-sudoc-d-5.pdf
    • http://www.gorilla
    • 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://calibre-ebook.com
    • 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#
    +1 more URL(s)

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