Malicious PDF — malware analysis report

Heuristics 7

• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://m4krichmond.org/clients/3/3b/3bf4c986be49c21931b3574e72fd8103/File/wutifufutomilegopekodi.pdf In PDF document text

  • https://dancleland.com/img/upload/file/burusu.pdfIn PDF document text
  • https://eternalbliss.net/file/11226994841.pdfIn PDF document text
  • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3b76c79c1f---tavukamuvapofes.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c21b9a596bf---89036728111.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c275d539ec1---xafalobiruwadidinuke.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/0hrh8eft8ov1ub57am2sp2btb7/godojebejomijidiw.pdfIn PDF document text
  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c934236cf2b---vetudifuzene.pdfIn PDF document text
  • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/c823fa2ff577c5b8909f1a4549a1f5bf/92230292158.pdfIn PDF document text
  • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/ea199b191af8288eef7292c32830ed47/11294358490.pdfIn PDF document text
  • https://ka-base.no/images_students/files/mixobewakuxobogogiwe.pdfIn PDF document text
  • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3bfc8907c7---90487671585.pdfIn PDF document text
  • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e008597ea7---depidejun.pdfIn PDF document text
  • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/t69ig9p0ep43rtuuah0g7ua0j1/44045310941.pdfIn PDF document text
  • http://serextion2006.com/js/upload/files/gepaxutivol.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cfcae667415---wigikezogutonepa.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/0cf2accf647f639d90390c75a85f0816/94939662764.pdfIn PDF document text
  • https://feng-shuiworld.com/userfiles/file/jatabomuvivorebala.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bf75ca355d3---46830853330.pdfIn PDF document text
  • http://healingtown.org/userData/board/file/66971157496.pdfIn PDF document text
  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/87780cc1b568ae15248509adab52f579/79871643428.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a9554840543---46162878383.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=dengue+shock+syndrome+treatmentPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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