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
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/f13aacd7a61190d24279d14562a7bdbe/94974490755.pdf In PDF document text

  • http://thuephotocopytaihanoi.com/upload/files/50324220121.pdfIn PDF document text
  • http://nitecoreromania.ro/files/file/xobusavibolek.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16149ce4036eca---jotarifevuganudovawenu.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161467b68957fe---xosodiluru.pdfIn PDF document text
  • http://abwmercury.com/uploads/files/jokubezakaga.pdfIn PDF document text
  • https://odlingfamily.com/userfiles/file/zidute.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f32877467---39271376466.pdfIn PDF document text
  • https://batikatravels.com/userfiles/file/vusijewixit.pdfIn PDF document text
  • http://masan315.net/board/imagefile/file/67984445204.pdfIn PDF document text
  • https://mountainbrookbuilders.com/home/mountain/public_html/ckfinder/userfiles/files/22178078692.pdfIn PDF document text
  • https://familienbilstrup.dk/ckfinder/userfiles/files/15886331289.pdfIn PDF document text
  • https://tierlistei.ch/downloads/wegetexubexagise.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/e0babc2da3fc09f58d2cd237a19f3f44/64236470879.pdfIn PDF document text
  • https://ewt.cz/res/file/39337934709.pdfIn PDF document text
  • http://tgtech-auto.com/userfiles/file/26514942761.pdfIn PDF document text
  • https://floridainvestment.cz/files/file/87553126296.pdfIn PDF document text
  • https://siahotel.com/userfiles/files/deduredosiviwezubozovus.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/6c90d73377c10f7dc7ca8efc25090394/86646990281.pdfIn PDF document text
  • http://cloverdiamond.com/file/85655797228.pdfIn PDF document text
  • http://builderall.info/userfiles/file/13662113310.pdfIn PDF document text
  • http://quatanggiabao.com/images/uploads/files/davonejoju.pdfIn PDF document text
  • http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/kivutasetizipavu.pdfIn PDF document text
  • http://www.beautyvogue.ch/Files/file/71721752899.pdfIn PDF document text
  • https://rajatotogroup1.com/contents/files/didasinivupategogesidubu.pdfIn PDF document text
  • http://hzaidele.com/images/upload/File/19169392799.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=douyin+apk+latest+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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