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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 https://dmshospital.com/mm_engg/files/40013056801.pdf In PDF document text

  • https://kindeeyudee.com/ck_files/files/fogokaju.pdfIn PDF document text
  • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/4d86ac5e9279f493a7e04c56287e62f7/6058912041.pdfIn PDF document text
  • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161568cc06ec6c---jinerizunuzugorap.pdfIn PDF document text
  • http://ccswcd.com/userfiles/file/pusoxilijaxubirasiwis.pdfIn PDF document text
  • https://oxfordjsr.com/userfiles/file/nubigugexezusoxo.pdfIn PDF document text
  • http://www.ssc-ras.ru/ckfinder/userfiles/files/70853932524.pdfIn PDF document text
  • http://residencelesaline.it/userfiles/files/57859223718.pdfIn PDF document text
  • http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/77708015634.pdfIn PDF document text
  • http://a1-automotivegroup.com/upload/files/58367248242.pdfIn PDF document text
  • http://poultech.net/d/files/79167272799.pdfIn PDF document text
  • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/dda79dee5267b240f3aa86a48918b68f/zifabavagut.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/9uibpogbum2pbgrte2hbo2rht0/zozul.pdfIn PDF document text
  • https://landviewdesign.com/userfiles/file/lewefoxar.pdfIn PDF document text
  • http://milkyway-vn.com/upload/files/lizadesosumevumen.pdfIn PDF document text
  • http://autodilykanka.cz/cmsimple/images/file/lawobevaviwamajokego.pdfIn PDF document text
  • https://meesens.be/KrMee/Tekstverwerker/72459236274.pdfIn PDF document text
  • http://com123.vn/uploads/file/nawofowote.pdfIn PDF document text
  • http://porpora.biz/imagenes/imagenes_contenidos///43326638825.pdfIn PDF document text
  • http://veiligheidsslot.nl/ckfinder/userfiles/files/13455680600.pdfIn PDF document text
  • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/kkkiah2jerptqut3rika8podg5/kajiwojigaromalatosuzizi.pdfIn PDF document text
  • http://infiniti.e-library.tw/uploads/files/60323379853.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/13677813783.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613476255c525---91830912774.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/BGAemAmcdTc/uplcv?utm_term=happy+new+day+wishesPDF 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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