Malicious PDF — malware analysis report

Static analysis result for SHA-256 198f069f923701ca…

MALICIOUS

PDF

44.7 KB Created: 2018-11-26 20:06:00 +03:00 Authoring application: tFPDF 1.03
MD5: 3b3dd3b45dac01afe68f9b9f743e4d7d SHA-1: 9455a5ffa86e054d5f3f33b92a019bcb58cdb87b SHA-256: 198f069f923701ca09cff9457d3e1dece30c92a3ecc9059a7237d2f0bbb29688
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on the same domain, suggesting an attempt to manipulate search engine rankings or distribute a large volume of content. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8224

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-choosing-time-kindle-edition.pdf
    • http://www.gorillawalker.com/china-2227-long-long-ago.pdf
    • http://www.gorillawalker.com/german-atrocities-their-nature-and-philosophy-studies-in-belgium-and.pdf
    • http://www.gorillawalker.com/gangs-in-canada.pdf
    • http://www.gorillawalker.com/hiqs-the-incomplete-works-of-kindle-edition.pdf
    • http://www.gorillawalker.com/the-decline-and-fall-of-the-roman-church.pdf
    • http://www.gorillawalker.com/ubuntu-linux-toolbox-1000-commands-for-ubuntu-and-debian-power.pdf
    • http://www.gorillawalker.com/estate-planning-simplified-law-made-simple.pdf
    • http://www.gorillawalker.com/eddie-s-mma-submission-gay-mma-octagon-rough-erotica.pdf
    • http://www.gorillawalker.com/filmed-books-and-plays-1928-1974-grafton-books.pdf
    • http://www.gorillawalker.com/firefighters-folklore-north-american-folklore.pdf
    • http://www.gorillawalker.com/unlock-level-3-reading-and-writing-skills-teacher-s-book.pdf
    • http://www.gorillawalker.com/nyctophilia-kindle-edition.pdf
    • http://www.gorillawalker.com/how-to-shoot-weddings.pdf
    • http://www.gorillawalker.com/survival-manual-survival-guide-survival-handbook-sere-combined-with-department.pdf
    • http://www.gorillawalker.com/juicing-for-health-a-30-day-juice-diet-with-recipes.pdf
    • http://www.gorillawalker.com/armies-of-the-gulf-war-elite.pdf
    • http://www.gorillawalker.com/armchair-reader-the-origins-of-everything.pdf
    • http://www.gorillawalker.com/sustainable-geography-geographical-information-systems.pdf
    • http://www.gorillawalker.com/short-selling-your-home-how-to-navigate-and-benefit-from.pdf
    • http://www.gorillawalker.com/behind-the-mask-of-the-strong-black-woman-voice-and.pdf
    • http://www.gorillawalker.com/men-in-nursing-history-challenges-and-opportunities.pdf
    • http://www.gorillawalker.com/guide-book-of-southern-states-currency-official-red-books.pdf
    • http://www.gorillawalker.com/mustaine-a-life-in-metal-by-mustaine-dave-09-june.pdf
    • http://www.gorillawalker.com/modern-romance.pdf
    • http://www.gorillawalker.com/movie-star-best-job-ever.pdf
    • http://www.gorillawalker.com/the-politics-of-coalition-in-korea-between-institutions-and-culture.pdf
    • http://www.gorillawalker.com/the-chunnel-the-amazing-story-of-the-undersea-crossing-of.pdf
    • http://www.gorillawalker.com/national-geographic-magazine-february-1966-vol-129-no-2.pdf
    • http://www.gorillawalker.com/a-steampunk-s-guide-to-the-apocalypse-steampunk-s-guides.pdf
    • http://www.gorillawalker.com/spin-the-bottle-a-gay-young-adult-romance-story-kindle.pdf
    • http://www.gorillawalker.com/airborne-early-warning-radar-artech-house-radar-library.pdf
    • http://www.gorillawalker.com/lower-tamar-valley-and-plymouth-os-explorer-active-map.pdf
    • http://www.gorillawalker.com/staar-success-strategies-grade-3-mathematics-workbook-study-guide-comprehensive.pdf
    • http://www.gorillawalker.com/swords-into-ploughshares.pdf
    • http://www.gorillawalker.com/genuine-fiscal-policy-to-support-the-development-of-the-modern.pdf
    • http://www.gorillawalker.com/aquatic-and-wetland-plants.pdf
    • http://www.gorillawalker.com/brief-interviews-with-hideous-men-stories.pdf
    • http://www.gorillawalker.com/i-use-a-wheelchair-dinosaur-s-althea-books.pdf
    • http://www.gorillawalker.com/creativity-and-concept-design.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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