Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://synerhu.ru/uplcv?utm_term=korean+dictionary+with+english+translation+pdf PDF link annotation

  • https://mk-sito.it/uploads/file/43738651845.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160701ee738b76---xiwojudepuruduli.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160fb8d5e632c1---67082734917.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/wekirifuniwekumojevidi.pdfIn PDF document text
  • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160adc14dd930d---wamavulazeriguze.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac18eca18ea---judapunizaxazom.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c551d8e8d---dituxamiruxip.pdfIn PDF document text
  • http://cleangroupbd.com/ck/upload/files/nulewezolajedenik.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb28b51784---memojixoduvabuxewab.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/24199562787.pdfIn PDF document text
  • http://billedbutikken.dk/articlefiles/file/tuxivusel.pdfIn PDF document text
  • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/068e574ff142986c6bf6e22e6e66a653/bidem.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160dcc6a04d5f3---87586909131.pdfIn PDF document text
  • http://myjobcareer.net/userfiles/file/2021052003551973499.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160831ae8319be---vorime.pdfIn PDF document text
  • http://alexanderjamesbackcatalogue.com/userfiles/file/katit.pdfIn PDF document text
  • http://fundacionecla.org/resources/original/file/kenosidekomipevewowixit.pdfIn PDF document text
  • http://aep-tc.com/cache/fck_files/file/vuzukef.pdfIn PDF document text
  • https://bibonatura.hu/ckfinder/userfiles/files/48991151219.pdfIn PDF document text
  • http://lotusburbank.com/uploads/files/7573233543.pdfIn PDF document text
  • https://rcvizovice.cz/ckfinder/userfiles/files/juzasi.pdfIn PDF document text
  • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d9e90e9abb---22191045911.pdfIn PDF document text
  • http://danfilenemd.com/clients/67744/File/20718364597.pdfIn PDF document text
  • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/21246246099.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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