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://medvor.ru/uplcv?utm_term=scaricare+app+android+tablet PDF link annotation

  • https://www.colline-eternelle.com/ckfinder/userfiles/files/jiwalu.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/e3ca4d7cc3d431a96d54a93556acf09f/pebepode.pdfIn PDF document text
  • http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/57624065946.pdfIn PDF document text
  • http://ttc-investco.com/img/files/tixozowijezew.pdfIn PDF document text
  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/s6tmpvf7idncd4e6ii4e11q3c9/57930478625.pdfIn PDF document text
  • http://anoh.net/pds/userfiles/files/muvuzezovu.pdfIn PDF document text
  • https://ip-kamera-rendszer.nuttydog.hu/ckfinder/userfiles/files/ridavogerajaja.pdfIn PDF document text
  • http://viethanit.vn/hinhanh/file/woferituxumi.pdfIn PDF document text
  • http://progettarecasa.com/userfiles/files/wizubewarekometazegamemet.pdfIn PDF document text
  • http://www.puhito.hu/uploads/vatodupizasebirowa.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16139e2b4d8e91---1334049140.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161459911e165a---73020287073.pdfIn PDF document text
  • http://2478.ru/admin/ckfinder/userfiles/files/woxegi.pdfIn PDF document text
  • https://rajaketiga.com/contents/files/tapaduxamofimelum.pdfIn PDF document text
  • http://mobiliteit.nu/files/fonatisabefukobenaxepe.pdfIn PDF document text
  • https://www.aukuras.org/ckfinder/userfiles/files/19831023067.pdfIn PDF document text
  • http://wxbeimei.cn/upload/ckimg/files/202109050802161018.pdfIn PDF document text
  • http://excitechem.com/userfiles/file/2889024263.pdfIn PDF document text
  • https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/zuzone.pdfIn PDF document text
  • http://moskvaznaet.ru/upload/files/15265920062.pdfIn PDF document text
  • https://gibidesign.com/fckfiles/file/73913879121.pdfIn PDF document text
  • http://alrabbanoilandgas.com/file/files/33451148368.pdfIn PDF document text
  • https://pensionradvanice.cz/res/file/mobuj.pdfIn PDF document text
  • http://year-c.com/upload_fck/file/2021-9-10/20210910192950767964.pdfIn PDF document text
  • http://greenglobepms.com/uploads/35422816681.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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