Malicious PDF — malware analysis report

Heuristics 7

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://catamma.ru/uplcv?utm_term=plants+vs+zombies+2+mod+pc PDF link annotation

  • http://www.mezmat.ru/ckfinder/userfiles/files/girejazuwegevuzol.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613358003016a---92451678514.pdfIn PDF document text
  • http://forter.vn/hinhanh/file/delenuwobifodu.pdfIn PDF document text
  • https://buffinvestment.com/upload/ckfinder/files/47669834716.pdfIn PDF document text
  • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613921eeb82b7---wopenuxefumotod.pdfIn PDF document text
  • http://szyoujin.com/UploadFile/file/20210909214607682.pdfIn PDF document text
  • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1614c4837094fa---22068898499.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d468fda54b---44988424173.pdfIn PDF document text
  • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614958868db6f---87405355330.pdfIn PDF document text
  • https://butagallery.com/userfiles/files/80162530961.pdfIn PDF document text
  • http://www.sosonomo.com/ckfinder/userfiles/files/81830375131.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e0698a177.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16145895ce7a39---wexijivopumuriberi.pdfIn PDF document text
  • https://biholka.cz/uploades/userfiles/file/77761337745.pdfIn PDF document text
  • http://chretkinia.pl/userfiles/file/musidoxemunetenevagilibox.pdfIn PDF document text
  • https://tsolisp.com/files/file/xipewej.pdfIn PDF document text
  • http://innova-perila.ru/upload/files/fufilarazojix.pdfIn PDF document text
  • https://speculatio.in/userfiles/file/guburukefelulepelanavoj.pdfIn PDF document text
  • http://elementyzlaczne.pl/media/file/74690709123.pdfIn PDF document text
  • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614af2bb300ae---kexewoxebudutejoxorulom.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613f6788a0b31---nalofaparolete.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/7ere896tmrfsbhm7feq1hqrem6/rujipafavinuvovisufukofap.pdfIn PDF document text
  • http://foto-klub.dk/userfiles/file/58279824609.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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