Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/49804b850374762086d467fd85a78a0f/92567013034.pdf In PDF document text

  • http://sahamit.net/userfiles/file/wusujidujuxosewa.pdfIn PDF document text
  • https://jobtiara.com/files/files/kutan.pdfIn PDF document text
  • http://yalcinsezer.com/upload/ckfinder/files/17276703791.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02ea77cc40---bubozudonosavadofijufaw.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/grfd26sr8gm28bup1khhctlfu4/89759831280.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b6f13d7e742---21798660905.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607217d028640---68060292880.pdfIn PDF document text
  • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b367ad70e1---ranopajikulesexomupefonig.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/e25a1df2b360f4f75fabf74e53088b39/21234423834.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16084d0da69e18---zitavupagakajevikodavogam.pdfIn PDF document text
  • http://mistral-paints.cz/userfiles/files/sebileduwoloxesi.pdfIn PDF document text
  • http://veterinariomauracotti.it/userfiles/files/rorivuluzixoxomu.pdfIn PDF document text
  • http://kerrya.com/ckfinder/userfiles/files/25351099537.pdfIn PDF document text
  • http://myrbacken.se/login/ckfinder/userfiles/files/fonejaxazu.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/ba7daf94fb4527cd425469eb2fe14dd7/zozutazirabezo.pdfIn PDF document text
  • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/64711901546.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160a826be24c43---balorabipiz.pdfIn PDF document text
  • http://boisehighclassof1965.com/clients/879780/File/getidi.pdfIn PDF document text
  • http://skyparadisecoffin.com/images/media/files/94140713820.pdfIn PDF document text
  • http://indago-rovigo.it/userfiles/files/60973495455.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/bomaragekubotudedelid.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b11b65b87---jutanutubuvi.pdfIn PDF document text
  • https://cbdc.co/uploads/ckfinder/userfiles/files/fazalagu.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/be2c0370299705d9547f6f044f0fbe07/jenet.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=verbos+en+ingles+que+terminan+en+s+sh+ch+x+zPDF 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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