Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbdfe739c4afa85a…

MALICIOUS

PDF

45.3 KB Created: 2019-03-17 06:54:44 +03:00 Authoring application: Adobe Acrobat 8.0 (via Adobe Acrobat 8.0 Image Conversion Plug-in)
MD5: a43a7239666acc6d1d7b50bccb33654c SHA-1: 5e2c528cc5c3b8ed2b4355dbaa0c29965413dcdb SHA-256: bbdfe739c4afa85ac478a91b91117c24631f27fa42a06803d3f527b66c7f67ca
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, a technique often used for SEO manipulation or to host malicious content. The document body is heavily obfuscated and contains numerous URLs pointing to external PDF files, suggesting a link farm or a distribution mechanism for further payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/bradshaw-s-guide-to-scotland-s-railways-vol-6-east.pdf
    • http://www.gorillawalker.com/nietzsche-on-morality.pdf
    • http://www.gorillawalker.com/birds-of-the-west-indies-princeton-field-guides.pdf
    • http://www.gorillawalker.com/the-package-design-book-2-german-english-and-french-edition.pdf
    • http://www.gorillawalker.com/qi-gong-secrets-of.pdf
    • http://www.gorillawalker.com/our-roots-grow-deep-the-story-of-rodale.pdf
    • http://www.gorillawalker.com/hope-and-cure-controversies-challenges-and-clinical-findings-in-the.pdf
    • http://www.gorillawalker.com/philosophical-perspectives-on-play.pdf
    • http://www.gorillawalker.com/la-parabola-dei-ciechi-uno-sguardo-alla-psicopatologia-con-gli.pdf
    • http://www.gorillawalker.com/employment-law-concentrate.pdf
    • http://www.gorillawalker.com/symplectic-geometry-and-secondary-characteristic-classes-progress-in-mathematics-volume.pdf
    • http://www.gorillawalker.com/qi-stagnation-signs-of-stress.pdf
    • http://www.gorillawalker.com/encountering-jesus-christ-rethinking-christological-faith-and-commitment-marquette-studies.pdf
    • http://www.gorillawalker.com/scenic-driving-arizona-3rd.pdf
    • http://www.gorillawalker.com/pulsar-trading-system-for-the-commodity-futures-markets.pdf
    • http://www.gorillawalker.com/come-to-tea-the-little-guide-for-planning-giving-and.pdf
    • http://www.gorillawalker.com/our-sunday-visitor-s-treasury-of-catholic-stories.pdf
    • http://www.gorillawalker.com/advances-in-combinatorial-methods-and-applications-to-probability-and-statistics.pdf
    • http://www.gorillawalker.com/preachers-florilegia-and-sermons-studies-on-the-manipulus-florum-of.pdf
    • http://www.gorillawalker.com/the-philosophy-of-chiropractic.pdf
    • http://www.gorillawalker.com/a-matter-of-wonder-what-biology-reveals-about-us-our.pdf
    • http://www.gorillawalker.com/florida-bicycle-accident-handbook.pdf
    • http://www.gorillawalker.com/sweethearts-for-a-lifetime-making-the-most-of-your-marriage.pdf
    • http://www.gorillawalker.com/contemporary-diagnosis-and-management-of-male-erectile-dysfunction.pdf
    • http://www.gorillawalker.com/elements-of-e-mail-style-communicate-effectively-via-electronic-mail.pdf
    • http://www.gorillawalker.com/skateboarder-s-start-up-a-beginner-s-guide-to-skateboarding.pdf
    • http://www.gorillawalker.com/l-estro-armonico-op3-no8-concerto-grosso-in-a-minor.pdf
    • http://www.gorillawalker.com/multiple-myeloma-translational-and-emerging-therapies.pdf
    • http://www.gorillawalker.com/essays-in-radical-empiricism.pdf
    • http://www.gorillawalker.com/passing-the-ukcat-and-bmat-advice-guidance-and-over-650.pdf
    • http://www.gorillawalker.com/the-secret-footballer-s-guide-to-the-modern-game-tips.pdf
    • http://www.gorillawalker.com/counselling-skills-a-practical-guide-for-counsellors-and-helping-professionals.pdf
    • http://www.gorillawalker.com/rfids-near-field-communications-and-mobile-payments-a-guide-for.pdf
    • http://www.gorillawalker.com/introduction-to-the-theory-of-numbers-4th-edition.pdf
    • http://www.gorillawalker.com/aspect-and-predication-the-semantics-of-argument-structure.pdf
    • http://www.gorillawalker.com/mindfulness-funciona-spanish-edition.pdf
    • http://www.gorillawalker.com/perspectives-on-engineering.pdf
    • http://www.gorillawalker.com/con-los-pies-en-la-tierra-4ta-ed-aprendiendo-a.pdf
    • http://www.gorillawalker.com/microsoft-win32-developer-s-reference-library-dv-microsoft-professional.pdf
    • http://www.gorillawalker.com/gnarr-how-i-became-the-mayor-of-a-large-city.pdf
    • http://www.gorillawalker.com/la-parabol
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.