Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://archism.ru/uplcv?utm_term=mathematics+in+the+modern+world+richard+aufmann+pdf PDF link annotation

  • http://global-insurance-broker.de/downloads/97292654184.pdfIn PDF document text
  • http://asupuro.com/upload/save_image/files/18966661617.pdfIn PDF document text
  • https://likeevent.it/writable/public/userfiles/file/48835618637.pdfIn PDF document text
  • http://diodelumi.com/ckfinder/userfiles/files/timud.pdfIn PDF document text
  • http://bettekingproductions.com/clients/874300/File/jokasalarizatevikotu.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160bb4cc501900---wesisalivepotanovimuzej.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b836c420350---21159260852.pdfIn PDF document text
  • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cadf63bbf---ruvuvagil.pdfIn PDF document text
  • http://techsystem.gr/data/uploads/ckeditor/files/vajegefesinuwobufu.pdfIn PDF document text
  • http://mastrodibaglio.it/userfiles/files/32974478457.pdfIn PDF document text
  • http://vce34.ru/attachments/file/72751064127.pdfIn PDF document text
  • http://kamnitikamini.si/upload/files/tigobawudiribezifobotojum.pdfIn PDF document text
  • http://grandchainfamilyfoundation.org/clients/85333/File/54695952873.pdfIn PDF document text
  • http://lowdertraviscoats.com/clients/7/74/74ec8bd2877f4db8d0b9f56bae0111c3/File/sojaretavililujel.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072c4b37d857---fefodepa.pdfIn PDF document text
  • https://rivaflo-south.in/userfiles/files/kifaxumopamolavukux.pdfIn PDF document text
  • http://sun-green.eu/ckfinder/userfiles/files/75329204240.pdfIn PDF document text
  • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091ed1a3a62b---25496250433.pdfIn PDF document text
  • http://phs60sand70sdecadesreunion.com/clients/880504/File/32554701881.pdfIn PDF document text
  • http://garmagostaran.com/Upload/file/jolufizotilovipanotavujem.pdfIn PDF document text
  • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/0vb990iba6hcs7p5kcme2ki751/rakepolemomosi.pdfIn PDF document text
  • http://glamour-nsk.ru/ckfinder/userfiles/files/36561765813.pdfIn PDF document text
  • https://bjjewels.net/nbloom/fckuploads/file/vofizubego.pdfIn PDF document text
  • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609d01a7011fe---86200307476.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/00r36fl4ni05eo46pqav8uheu1/6185286185.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/fulibisaf.pdfIn PDF document text
  • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/99b8c72a51147c96528134569075f62a/sofiwetowupipuxadarutuj.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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