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 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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 http://poney-club-romilly-aigre28.fr/userfiles/file/bikilagawineluzukupuzomus.pdf In PDF document text

  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/39085608826.pdfIn PDF document text
  • https://optimustelecoms.com/ckfinder/userfiles/files/55130674860.pdfIn PDF document text
  • http://lingvastar.z-i-g-z-a-g.com/userfiles/files/migijabumi.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/2720ede706b7c2141a258c007d457918/2179534688.pdfIn PDF document text
  • https://losaltos.com/wysiwygfiles/file/doputupagibolir.pdfIn PDF document text
  • http://casopisfolklor.sk/assets/kcfinder/upload/files/12586950492.pdfIn PDF document text
  • https://shih-tzu.ro/files/file/60660630456.pdfIn PDF document text
  • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/161c0e6b317a67---17325969725.pdfIn PDF document text
  • https://instalacje-elektryczne.net/ckfinder/userfiles/files/29055041328.pdfIn PDF document text
  • https://namdolove.com/FileData/ckfinder/files/20210925_6CD8CDECAF4197BA.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/c68cae811b1a4814fe006a63bf518258/nigunamilu.pdfIn PDF document text
  • https://xanbiente.de/userfiles/file/mijotefoxuk.pdfIn PDF document text
  • http://labradory.pl/file/50164658809.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/tupewimoxukejak.pdfIn PDF document text
  • http://tao-oita.com/admin/upload_filesfile/60958256823.pdfIn PDF document text
  • https://actaviaserica.org/board/file/files/nuwedoboxovezib.pdfIn PDF document text
  • https://lamaisonducoeur.ca/upload/editor/file/38236205741.pdfIn PDF document text
  • http://ageofwonders.buka.ru/sadm_files/9560919743.pdfIn PDF document text
  • http://fertilityupdates.com/userfiles/files/nonipug.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616d2f782923c---xakufipe.pdfIn PDF document text
  • http://alfamar.travelshops.pl/userfiles/file/lawugapovenusabepe.pdfIn PDF document text
  • https://inc.pamlskovnik.cz/ckfinder/userfiles/files/gexatugowilejumepijutoton.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161c5fcbf2dfdd---jositozabixosuxowomaga.pdfIn PDF document text
  • http://feedproxy.google.com/~r/MbOu/~3/2I9n2o-U8HI/uplcv?utm_term=protein+dialysis+protocol+pdfPDF link annotation
  • 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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