Malicious PDF — malware analysis report

Heuristics 8

• 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
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://infrive.ru/uplcv?utm_term=unturned+id+clothes PDF link annotation

  • http://huyndaicaudien.com/upload/files/minepafulakiz.pdfIn PDF document text
  • https://heritran.vn/uploads/news_file/saxeboguzir.pdfIn PDF document text
  • https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/85603161970.pdfIn PDF document text
  • http://daphongthuyhueminh.com/uploads/image/files/88852657935.pdfIn PDF document text
  • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/zokafi.pdfIn PDF document text
  • http://pusheng168.com/uploadfiles/20210913194719.pdfIn PDF document text
  • https://sharenkon.com/files/muwovevagerixepifobalazik.pdfIn PDF document text
  • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/vekitumeson.pdfIn PDF document text
  • http://grupafurman.pl/!mag2011/userfiles/file/tifotuf.pdfIn PDF document text
  • http://oishisushigd.com/uploads/files/19310351130.pdfIn PDF document text
  • https://www.sibirprokat.ru/ckfinder/userfiles/files/xofekoxijunon.pdfIn PDF document text
  • https://soswzgierz.pl/web/uploads/files/9002339354.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16141befce1772---95987574802.pdfIn PDF document text
  • http://eska-lift.ru/userfiles/file/tuvone.pdfIn PDF document text
  • https://horgaszvelem.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/25684824053.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613099588b341---fobalezarijupakumonotet.pdfIn PDF document text
  • http://kondicionery-pushkino.ru/upload_picture/file/pajaroxo.pdfIn PDF document text
  • http://ibarugi.com/fckeditor/userfiles/file/91911396435.pdfIn PDF document text
  • https://infrastone.com/userfiles/files/butono.pdfIn PDF document text
  • http://renknh.com/ckupload/files/tenefaxagegogadezefasup.pdfIn PDF document text
  • http://gespk.com/userfiles/file/42802706187.pdfIn PDF document text
  • http://vwtint.com/userData/board/file/73021443391.pdfIn PDF document text
  • http://vinczeandlaszlo.com/upload/tiwesaterulukobuvuk.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1614586975325f---12473202474.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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