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 https://vibanghanoi.com/uploads/files/jifirite.pdf In PDF document text

  • http://nedirajtebosnu.net/userfiles/file/98586289528.pdfIn PDF document text
  • https://jingchengs.com/jingchengs/ckfinder/files/20210906050537.pdfIn PDF document text
  • http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/89981854918.pdfIn PDF document text
  • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/tq0ekbb65eccpo49rkkofvvgkd/4113060140.pdfIn PDF document text
  • http://www.jasfec.com/imgs/uploads/79433380253.pdfIn PDF document text
  • http://alpha-th.com/userfiles/file/25386138376.pdfIn PDF document text
  • http://woodlander.sk/grafika/file/2670163156.pdfIn PDF document text
  • http://nissanotogovap.net/uploads/images/files/26019882222.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/82728743671.pdfIn PDF document text
  • http://videotour24.com/data/fckupload/file/93344135929.pdfIn PDF document text
  • https://jerseyshorepirates.com/userfiles/files/nazaxilafubada.pdfIn PDF document text
  • https://cyberbirddog.com/userfiles/files/48785178970.pdfIn PDF document text
  • http://dsfly.com/uploads/files/65737830571.pdfIn PDF document text
  • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16144fc7f4cd11---97094334426.pdfIn PDF document text
  • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16134da2e2d4f9---difunanomu.pdfIn PDF document text
  • https://fainitelecommunication.com/public/editorfiles/file/sipojexufawat.pdfIn PDF document text
  • http://big-blue-bus.com/pics/fotos/1/file/32261272444.pdfIn PDF document text
  • http://dungculamdep.com/fckeditor_userfiles/file/46984392081.pdfIn PDF document text
  • https://www.znackakvality.info/files/buwojazokasitosenuvo.pdfIn PDF document text
  • https://samajsutra.com/userfiles/files/87189634409.pdfIn PDF document text
  • https://aczv.fr/userfiles/file/jolepadijuw.pdfIn PDF document text
  • http://boki.hu/editor_up/96228955782.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=tutuapp+helper+download+iosPDF 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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