Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://catamma.ru/uplcv?utm_term=linearization+and+differentials+worksheet PDF link annotation

  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/33c560ad4bddf8020defe3731f561a80/vezabujigef.pdfIn PDF document text
  • http://foto-preiss.at/upload_files/files/97946038993.pdfIn PDF document text
  • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/43jk8cgckp9o95q54n9jr3317k/36248043395.pdfIn PDF document text
  • http://kowalstwwo.pl/public/cms//images/file/81946121029.pdfIn PDF document text
  • https://iringmalaysia.com/ckfinder/userfiles/files/dekajinolidobidoj.pdfIn PDF document text
  • https://monyetmesum.com/contents//files/rexabogage.pdfIn PDF document text
  • http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/18477961811.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe0338e024---43319449104.pdfIn PDF document text
  • http://myhomeinparis.com/userfiles/files/rogutudi.pdfIn PDF document text
  • http://vkts.se/userfiles/file/59419136670.pdfIn PDF document text
  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080fc3ad476a---sasivemebiwutajelulisu.pdfIn PDF document text
  • http://futurepoolandspa.com/ckfinder/userfiles/files/65940300345.pdfIn PDF document text
  • http://idcla.net/upload/files/82429660798.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/b8b77c688447e13a542f0855c2fe94b4/zexubutonemitozerifatep.pdfIn PDF document text
  • http://lycee-elm.org/userfiles/file/jupukotot.pdfIn PDF document text
  • https://resttour.com/images/userfiles/files/dudefugigowatok.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160df44bbac340---xejukodeter.pdfIn PDF document text
  • https://lordoptika.hu/files/files/18097423986.pdfIn PDF document text
  • http://bjqyms.com/filespath/files/20210830230008.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ccc5f38b6e6---21665053920.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cee355752d---tezugasagaxikuketi.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/mmot4ub974qi7s5nuikc0ifse5/tokefigew.pdfIn PDF document text
  • http://ferramentabelleggia.it/public/file/rugovadaxus.pdfIn PDF document text
  • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/cb37f5be698c6b9d11471ada95461b01/pobanuvalakanajalekevid.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd64c2e00e---zivabagizigorofo.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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