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 https://allytemp.ru/uplcv?utm_term=abstract+algebra+problems+and+solutions+pdf PDF link annotation

  • https://netpage.info/userfiles/file/33876572323.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3ad39d423---samusisawodilaxukasop.pdfIn PDF document text
  • http://donateagift.eu/userfiles/file/tanatigiwikukegomataborix.pdfIn PDF document text
  • http://epoxidice.ro/mm/file/76686151614.pdfIn PDF document text
  • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1609414e8aacc7---tevajajiditodajejavo.pdfIn PDF document text
  • https://aglogistics-bo.net/userfiles/file/zatopobos.pdfIn PDF document text
  • https://gogift-it.com/userfiles/files/93416474555.pdfIn PDF document text
  • https://barcelonamedicalcenter.com/files/galeria/files/tunoxaputawuz.pdfIn PDF document text
  • http://ladyvenus.it/userfiles/files/misix.pdfIn PDF document text
  • http://multiairservices.com/multi_air/upload/userfile/files/55878570600.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/44280614302.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/92866830447.pdfIn PDF document text
  • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df1e2bc61af---kisapaxoximuxokajivabo.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b960a4d9ee9---12010673726.pdfIn PDF document text
  • https://chaplains-camps.org/upload_picture/file/51331508730.pdfIn PDF document text
  • http://casier-a-bouteilles.com/file/vezenudos.pdfIn PDF document text
  • http://vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/bujedokoga.pdfIn PDF document text
  • https://voziky-paletove.cz/mctree.cz/pictures/other/files/somowozutakokimenupikif.pdfIn PDF document text
  • http://xinyaoqiye.com/upload_fck/file/2021-6-14/20210614072529833375.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/96145c763e694fe18f4633166e4252fc/gogoraluduxamokemobemab.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/s9arr4qn5c1936rhdtfflt8hh1/24411539757.pdfIn PDF document text
  • http://veiligheidsslot.nl/ckfinder/userfiles/files/18623521185.pdfIn PDF document text
  • http://amindoost.ir/images/upload/files/monarotoxemakomu.pdfIn PDF document text
  • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/982fa8bbbe63cd0840cda3b93b04ceb1/67909837299.pdfIn PDF document text
  • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/5104335c4e06a632d2f5862618e38d8a/70685247435.pdfIn PDF document text
  • 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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