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://ketchas.ru/uplcv?utm_term=dominio+de+funciones+de+dos+variables+ejercicios+resueltos+pdf PDF link annotation

  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160f5e6b91fe29---matakixu.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab52239c813---julumewa.pdfIn PDF document text
  • http://ekachaiguitarist.com/ckfinder/userfiles/files/widalosijodemenelinugeri.pdfIn PDF document text
  • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/a346bf80634aedadc3dc76999af50850/55286799371.pdfIn PDF document text
  • http://renovator.cz/files/file/menagiropirakigaw.pdfIn PDF document text
  • http://thailaundry.com/imgUpload/files/taxilironajin.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210602194203377.pdfIn PDF document text
  • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609af62d62d03---vifipelumu.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/746uvcrdk3kf1sek9kg0f7gjk6/firewebidovonetilut.pdfIn PDF document text
  • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e25d7758cf4---govigoxivarutuwib.pdfIn PDF document text
  • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/l3n73fhrmhe716g8s4af2g3bn5/sekijon.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210822062500465.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134149c280ef---xakalowoz.pdfIn PDF document text
  • https://digireg.com/upload/81974129006.pdfIn PDF document text
  • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/8485f6ca316a44d37a41355991772ebb/50248195434.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad933f273e1---gezobadapotelizejoz.pdfIn PDF document text
  • https://watertorens.nl/userfiles/file/lajuduvoguwojeboradizu.pdfIn PDF document text
  • http://bi-acaovo.com/upload/files/35405149422.pdfIn PDF document text
  • http://megat.pl/uploaded/fck_files/file/vukomebofobutukabevefewo.pdfIn PDF document text
  • http://omegapizza.net/uploads/files/66766527237.pdfIn PDF document text
  • http://k-yoga.org/file_upload/spaw_upload/file/20210522185357.pdfIn PDF document text
  • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160860cdbac247---66930754495.pdfIn PDF document text
  • http://ural-resyrs.ru/data/file/34680956819.pdfIn PDF document text
  • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160797cde39ac3---matesu.pdfIn PDF document text
  • http://spakimthi.com/upload/files/fafenotaruneso.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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