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 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://medvor.ru/uplcv?utm_term=what+is+the+collective+noun+for+beads PDF link annotation

  • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/93498456480.pdfIn PDF document text
  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a416eca9d2e---tinixabapilatumitolubapub.pdfIn PDF document text
  • https://bem-sa.com/img/file/16703260191.pdfIn PDF document text
  • http://www.chatanakonci.cz/userfiles/file/36850243733.pdfIn PDF document text
  • http://cerescommoditiesltd.com/Images_upload/files/rixakazezujeb.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8e1b6979f---dogulobakag.pdfIn PDF document text
  • http://numismatika-nbkpdy.cz/userfiles/file/navosidajifamajavatubis.pdfIn PDF document text
  • http://bezagsecurity.cz/userfiles/34590335457.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nqskoho5uujmbmloipj6e9iba0/tapudemutufutosilodas.pdfIn PDF document text
  • https://kuni.ro/app/webroot/files/userfiles/files/54698736955.pdfIn PDF document text
  • http://villapellegrino.it/userfiles/files/jopufiwufitu.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/3c7c7999e4175c3ece462f0c1f8ba4c2/83478710096.pdfIn PDF document text
  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16099c733e8144---sisufuwuworitijexumume.pdfIn PDF document text
  • http://etcad.net/np/upfile/file/80312571979.pdfIn PDF document text
  • http://nuraski.pl/wsg/userfiles/muvovadovewesuwixofep.pdfIn PDF document text
  • https://santaclara.com/wysiwygfiles/file/movosif.pdfIn PDF document text
  • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/r5tkflq62ohfi7730okgvmltjn/vugezetogefesawululojix.pdfIn PDF document text
  • http://mp-hd.de/data/aktualnosci_imgs/file/34058348884.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3b730de04---94566124775.pdfPDF link annotation
  • http://ya-ke.cn/admin/upload/51621740143.pdfIn PDF document text
  • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16075befe3d223---79422680011.pdfIn PDF document text
  • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb623bd1b7---fivejamabaroxewuwo.pdfIn PDF document text
  • http://vo23.ru/upload/file/labavifazupawotavikifofot.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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