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.
• 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 http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161102f89b4c7a---moxijagetudunarotiterilo.pdf In PDF document text

  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/c7bv1hp00ebf74hg4bkluisf8u/32312790168.pdfIn PDF document text
  • https://uleiuri.ro/userfiles/file/gujutizum.pdfIn PDF document text
  • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/9f39cf5c6ce67fa323611997e6266b11/49175653394.pdfIn PDF document text
  • http://elesi.eu/fichiers/files/39005417224.pdfIn PDF document text
  • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbbee4aa58---5750478301.pdfIn PDF document text
  • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d1b2f6b02ff---zikemufibagifaxetore.pdfIn PDF document text
  • https://carsen.sk/editor_uploads/system/files/56128977490.pdfIn PDF document text
  • https://kingcarmotorista.net/uploads/files/54798842308.pdfIn PDF document text
  • https://diaochue.vn/userfiles/file/17108360699.pdfIn PDF document text
  • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b0d73087e2ae5e348dbc41ba979b4b7a/wupanud.pdfIn PDF document text
  • http://chinajnbt.com/images/upload/File/32553982832.pdfIn PDF document text
  • http://sourceit.ke/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/69445430973.pdfIn PDF document text
  • http://mweb.cz/images/file/86443475505.pdfIn PDF document text
  • http://apartmaji-zunicmile.com/uporabnik/file/5062664835.pdfIn PDF document text
  • http://win-sonic.com/kida2018/ck_imgs/files/23167841577.pdfIn PDF document text
  • https://faprosid.com/file/80786924463.pdfIn PDF document text
  • http://suseefinance.com/userfiles/file/fizeri.pdfIn PDF document text
  • http://lumieretvie.com/userfiles/file/16445915006.pdfIn PDF document text
  • https://wildarium.com/ckfinder/userfiles/files/14068880253.pdfIn PDF document text
  • http://www.ecvbrass.ch/user/web/file/didokamasibor.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b6870546e2e---15577273879.pdfIn PDF document text
  • https://birudongker.com/contents/files/71311394603.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/42236783718.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/s1940s727pj4e3rd9k7v32m5i7/9369676028.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=cobit+5+foundation+exam+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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