Malicious PDF — malware analysis report

Heuristics 7

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://pistant.ru/uplcv?utm_term=reproduction+in+fungi+pdf PDF link annotation

  • https://sedefartphotography.com/resimler/files/23880211475.pdfIn PDF document text
  • https://bya-ingenieria.com/ckfinder/userfiles/files/logifidawi.pdfIn PDF document text
  • https://csn-alliance.com/data/files/kepopoz.pdfIn PDF document text
  • https://85097781.com/upload/files/zuvenunugopukubudobin.pdfIn PDF document text
  • https://magiccat.pro/ckfinder/userfiles/files/lenezomavupegaxebabexike.pdfIn PDF document text
  • http://axwelindia.com/uploads/23140327573.pdfIn PDF document text
  • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16076c599afbe3---91385432363.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-12/20210512090036360129.pdfIn PDF document text
  • http://ttccid.com/userfiles/files/nunulafi.pdfIn PDF document text
  • http://steakpluspizza.us/userfiles/file/jekeragasibuwaf.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4138cbca7---31600691126.pdfIn PDF document text
  • http://dichvutot99.com/webroot/img/files/gofepelum.pdfIn PDF document text
  • http://lejuriste.ru/files/file/jawewone.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jfepm4ru6ljg7tf99uu0jvd1i4/sakoxe.pdfIn PDF document text
  • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/764409b3974709c612a49c55b8a50d19/53753615849.pdfIn PDF document text
  • https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/1uo1i1k6u059tuem1u2fqqkc3e/27420790691.pdfIn PDF document text
  • http://hitecds.com/userfiles/file/91367682284.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c5fa449a5f7---52595180184.pdfIn PDF document text
  • https://cristalparkhotel.com/ckfinder/userfiles/files/xijudeb.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea06bb915b---savidavanuje.pdfIn PDF document text
  • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741f03a438b---24334466824.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e3773d9fe---zukomewisogiputofuzewesos.pdfIn PDF document text
  • http://vmkmsz.hu/userfiles/file/21207234838.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/g6b00dkb4hrimhurk95724uhdt/nozutajusito.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160fbb9bcc7887---bowaxaxevetedive.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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