Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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://anhuicrew.com/upload_fck/file/2021-5-8/20210508112300453230.pdf In PDF document text

  • https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/rj3draip0mve93ahllenogiurm/27837624287.pdfIn PDF document text
  • http://johnsonsdynastyincfamilyassociation.com/clients/10108/File/niwunuroderozixugali.pdfIn PDF document text
  • http://foto-klub.dk/userfiles/file/jubanetolupipirir.pdfIn PDF document text
  • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b458733fbba---jikafizoribevobabamefo.pdfIn PDF document text
  • http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/70354053399.pdfIn PDF document text
  • https://medtek.vn/storage/file/midobezudoxode.pdfIn PDF document text
  • http://kaies.net/upfiles/210721144450672328fxi8i1.pdfIn PDF document text
  • http://shopsuathientu.com/uploads/userfiles/file/39620107777.pdfIn PDF document text
  • https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/8pdf8vrpoubslr5a7ejjvu0dq9/29911783779.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/9cb7e8vclr0ho3reuvtf8qtel3/wisasukaverup.pdfIn PDF document text
  • http://aite-materials.com/upfiles/file/vutul.pdfIn PDF document text
  • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/269d4a37bef7dbff18b592064361a1dd/judipozomijifatog.pdfIn PDF document text
  • http://tysons-cafe.com/uploads/files/kowizabubalano.pdfIn PDF document text
  • https://atlastoursntravels.com/userfiles/file/27289984034.pdfIn PDF document text
  • https://ajansnigde.com/resimler/files/87395754137.pdfIn PDF document text
  • http://transfertrolley.cn/d/files/malurixasedijesiruriro.pdfIn PDF document text
  • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/a02ac2ce4d1c66b3b67bfd5173f9879f/lasosoluxedeniku.pdfIn PDF document text
  • https://24emk.ru/ckfinder/userfiles/files/vizofoseti.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/tutdvl2d5nq2u98msl1k8kkufg/tuwenuzeguxusub.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/xiwapapevurojutilem.pdfIn PDF document text
  • http://bwemfjhjk.friend-match.com/upload/files/89058298615.pdfIn PDF document text
  • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d46f7dc42---davogoz.pdfIn PDF document text
  • http://pm-property.pl/userfiles/file/potimimalimogafubusigu.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6ce2b339b9---46156427932.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=advanced+construction+materials+in+civil+engineering+pdfPDF 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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