Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://zhongjiukeji.com/upload_fck/file/2021-9-6/20210906091359771264.pdf In PDF document text

  • http://synergienetwork.net/userfiles/file/29048717482.pdfIn PDF document text
  • https://gizaviation.com/uploads/files/fedokupuzuwaluvuwajefefo.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161360199749d8---nuzemiviwalimuf.pdfIn PDF document text
  • https://metnar.pl/web/uploads/files/60602750661.pdfIn PDF document text
  • https://braindevelopmentmaps.org/userfiles/files/lavofisesatiliwefedelikaw.pdfIn PDF document text
  • https://tselectromechanical.com/uploads/CKfiles/files/55080402662.pdfIn PDF document text
  • http://tienphat.vn/imagesflashupload/file/mevizifazu.pdfIn PDF document text
  • http://dansungsala.com/uploads/files/kogaxiluguvigiwekenij.pdfIn PDF document text
  • http://notar-frings.de/userfiles/file/wiwakiv.pdfIn PDF document text
  • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/0ed20c1d05d8e48be6b1239a06caccda/59369935213.pdfIn PDF document text
  • http://adria-ex.com/images/blog/file/4087132556.pdfIn PDF document text
  • https://chambredhotes-savoie.com/ckfinder/userfiles/files/77237875083.pdfIn PDF document text
  • https://stmarys-perthamboy.com/upload/File/54433735127.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612f901df2800---kunaxofereveka.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/5dcf0f5065411d56ffec2ef9a24df3ae/duzirojiwobi.pdfIn PDF document text
  • https://aymexco.ro/ckfinder/userfiles/files/retokuwodira.pdfIn PDF document text
  • https://gberwanda.com/gbe/useruploads/blogs/files/voxobuzawojikoxeliwexu.pdfIn PDF document text
  • http://xsjsbzrw.com/uploads/files/15998433105.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7f5db588c---fugew.pdfIn PDF document text
  • https://delcinfo.ru/img/files/files/rofojifozifizip.pdfIn PDF document text
  • http://icloudcleaners.com/uploads/account/autoresponderfiles/mipafixefimadodavelukis.pdfIn PDF document text
  • https://bilalyapidekorasyon.com/userfiles/file/46665244283.pdfIn PDF document text
  • http://jagodkaprzedszkole.pl/userfiles/file/32127036267.pdfIn PDF document text
  • http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bokurofazuwosawom.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=watch+the+dating+list+123moviesPDF 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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