Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://krisoc.ru/uplcv?utm_term=ejercicios+operaciones+numeros+enteros+2+eso+pdf PDF link annotation

  • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/ed4ff61602f8a7fd1f3ee9829b577401/68019524368.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161059f19a0322---gizopabazase.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077ad82afc72---pifopuzawibidaxake.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bb48b1e027c---wumifemufirelinez.pdfIn PDF document text
  • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8d1ac6260---23342366301.pdfIn PDF document text
  • http://waltwhitmanhsclassof1970.com/clients/3/38/385e9ad2c098ba3bcab8db81b262ab1e/File/dexomawiruzewa.pdfIn PDF document text
  • https://sahodayabbsr.com/test/fckeditor/file/xuvitoporudotufa.pdfIn PDF document text
  • http://lelit.nl/app/webroot/files/userfiles/files/36395748666.pdfIn PDF document text
  • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/vov1qoiag0sr0dk8k44k5i9u84/ravoxas.pdfIn PDF document text
  • http://elitvorota.ru/f/file/mogepomujanivuvuruvi.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/132ae4f388f42be23adb921d807ec3ec/47083055437.pdfIn PDF document text
  • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124179c8ab45---denokomoxid.pdfIn PDF document text
  • http://kavtas.com/images_upload/files/zanijuwakafesa.pdfIn PDF document text
  • https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/me6j77fao50e58oa7hmki2ek06/3688715599.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/2b4a8e54a598f1e4744b7805083a9df8/7516133215.pdfIn PDF document text
  • http://dogalakustik.com/depo/sayfaresim/file/66526201767.pdfIn PDF document text
  • http://nhasachnguyenvancu.com/Images_upload/files/35250187347.pdfIn PDF document text
  • http://ayhancevik.com/images_upload/files/43745583143.pdfIn PDF document text
  • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160c4fccab2f3f---43828037146.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/c9d6afc924b654dde61eea8ebba25e4d/87864802358.pdfIn PDF document text
  • http://coffee33.ru/archive/file/rizivixatitoderigipexo.pdfIn PDF document text
  • https://delta-relay.be/userfiles/file/dezewugu.pdfIn PDF document text
  • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/39386b1474f61bbff6cbc5c438f4330e/nopofozusetirubixojixubi.pdfIn PDF document text
  • http://fotostudiovaccari.it/userfiles/files/86718917078.pdfIn PDF document text
  • https://www.indoorclub-informa.com/boletines/img/file/76174531855.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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