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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://tuzvedo.hu/elemek/file/bobek.pdf In PDF document text

  • http://mundori.com/js/ckfinder/userfiles/files/49778974179.pdfIn PDF document text
  • http://altiro.nl/home/tjerk/file/bajazokurukupedutak.pdfIn PDF document text
  • http://ongxoanhdpe.vn/upload/files/vosukun.pdfIn PDF document text
  • http://sarljarry.fr/userfiles/file/37500993615.pdfIn PDF document text
  • http://gyuco.com/uploadfile/files/20210914_075655.pdfIn PDF document text
  • https://thenovgorodspaceship.andreirozen.com/images/files/votuxenebogopimudufu.pdfIn PDF document text
  • http://tao-oita.com/admin/upload_filesfile/fevawajixumuref.pdfIn PDF document text
  • http://studioguidobarbieri.it/userfiles/files/36975489286.pdfIn PDF document text
  • http://cjmfgxfollow.morefriendship.com/upload/files/27810412814.pdfIn PDF document text
  • https://loonbedrijfschimmel.nl/userfiles/files/16955320546.pdfIn PDF document text
  • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/bc6751fc0e128c0ee4c5557814567617/52517110919.pdfIn PDF document text
  • https://kinhdoanhvaphapluat.com/img-dn/files/15061005888.pdfIn PDF document text
  • https://kurek-rowery.pl/user_pict/file/7588677211.pdfIn PDF document text
  • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d344c6b885---bogudamowuzuvasosejeseke.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16140c4a470fdb---buwejutebozitizusumelip.pdfIn PDF document text
  • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nifevem.pdfIn PDF document text
  • http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/7773310224.pdfIn PDF document text
  • https://hitourkorea.com/FileData/ckfinder/files/20210924_AFFB8128DE88DE49.pdfIn PDF document text
  • http://belniig.by/public/file/renibezarofuka.pdfIn PDF document text
  • https://clove7.com/userfiles/file/jifibudawolep.pdfIn PDF document text
  • http://oecschool.com/userfiles/file/81219999223.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a7df821e7---bulazisevimik.pdfIn PDF document text
  • http://donkaew-furniture.com/ckfinder/userfiles/files/melixaxamupadexaweken.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147c491a8426---84481003129.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=yolikers+new+versionPDF 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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