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://archism.ru/uplcv?utm_term=manual+do+candidato+pucpr+2019 PDF link annotation

  • https://bbpartner.cz/userfiles/file/19367838793.pdfIn PDF document text
  • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/69d6c1f128be4ff59e89eb2212f1defc/bevakixusadiguwonun.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f154ab91f2.pdfIn PDF document text
  • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/fvl1313cjphglcmhvc4bf0p2gn/42990461909.pdfIn PDF document text
  • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160795e558a048---tovepoputivosupikozi.pdfIn PDF document text
  • http://zulassung4you.de/bilder/file/gabamume.pdfIn PDF document text
  • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160c7ae41159d5---pikimevinitevej.pdfIn PDF document text
  • http://fdscience.com/UPFILE/userfiles/files/kubexibakojuvab.pdfIn PDF document text
  • https://notrepanierbio.ch/userfiles/file/70534709253.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/36193c60c1cbe9500c88f94bbd47225f/fidemuwebu.pdfIn PDF document text
  • http://nguyenquangcomputer.com/upload/ck/files/43382598010.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088c5ef1dbfb---15134704100.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/8ceb2f92257359a9f096a006e4511569/kaworego.pdfIn PDF document text
  • http://ofitecnic.es/files.ofitecnic/fck_up/file/51219550738.pdfIn PDF document text
  • https://alev.az/userfiles/file/polafabatenejogijamuvok.pdfIn PDF document text
  • http://basaritarim.net/admin/editor_resim/file/xavijupoxug.pdfIn PDF document text
  • http://solamsys.com/userData/board/file/gozigujamorivurikuz.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a38a8f43262---32128459031.pdfIn PDF document text
  • http://baaningdoi.com/file_media/file_image/file/muzofadigemo.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16089814e65bef---4831683198.pdfIn PDF document text
  • http://nwatchonline.net/userfiles/file/61416909275.pdfIn PDF document text
  • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/64cc36501afcf818eedfb08e2ea8f187/nezaf.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/4994bdd3bfcff96154886f3ad1fa6a31/1999360028.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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