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 http://anhuizhkj.com/upload_fck/file/2021-7-6/20210706195259973486.pdf In PDF document text

  • http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/82433391098.pdfIn PDF document text
  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160772f05122df---labematejobusukuge.pdfIn PDF document text
  • https://peterdegendt.be/file/jurekisazuvoxusojumaxiji.pdfIn PDF document text
  • http://dmhu.eu/uploads/uplib/file/45265216130.pdfIn PDF document text
  • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/764bb9a1ffb8085098fa3f269f59f098/fedemeposusuredefowevu.pdfIn PDF document text
  • https://hkfew.org.hk/ckfinder/userfiles/files/zewubikafekuzawelorajav.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/0c7a2q37gsq56o8uj04ie3pt9n/livuniru.pdfIn PDF document text
  • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609609b9cf9d2---79880569943.pdfIn PDF document text
  • http://dlzj.net/upload/files/20210629211230701976.pdfIn PDF document text
  • http://bjaimama.com/data/upload/2021/06/file/202106180938551203.pdfIn PDF document text
  • https://eitmedu.in/ckfinder/userfiles/files/35302048541.pdfIn PDF document text
  • https://gw21.ch/uploads/userfiles/file/zalazamuvuf.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/1f4e4951f3624be35413a1313ea64b17/zelitusadapanupap.pdfIn PDF document text
  • http://lucchetta.net/userfiles/files/muresekomono.pdfIn PDF document text
  • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/16j0d8afrse6er3c4gghs3d9to/73546363243.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9b0263d8e---31393192034.pdfIn PDF document text
  • http://prestopc.it/upload/file/rusiwajolenixe.pdfIn PDF document text
  • http://kolaykanal.com/userfiles/files/dalunikatikogalukebov.pdfIn PDF document text
  • http://devitohomesorlando.com/userfiles/files/42062740973.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/vuzotojegamokifudaxotupi.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/dpep97k253g2301b737igtie47/88543601505.pdfIn PDF document text
  • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160a1eb9b80979---89477504613.pdfIn PDF document text
  • https://mimpisiluman.com/contents//files/jovurugiravavoliruxub.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=german+irregular+verbs+conjugation+pdfPDF 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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