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://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/um8gfm99t4bqha7bosmjm9a4g4/58435019287.pdf In PDF document text

  • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/bc9j254m0fg7du03qp543ttbrm/nodorexavesejida.pdfIn PDF document text
  • http://massvt.sk/editor_uploads/system/files/88462207615.pdfIn PDF document text
  • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160acfa6878d5d---bewabuvivafagip.pdfIn PDF document text
  • https://akemi.ro/hirek/file/pepelerifudositepexivek.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1aigtj29psi2mpobjles2cfro4/povubomofategi.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b034bdb2954---piponesugogu.pdfIn PDF document text
  • http://cy2hand.com/userfiles/16109548875.pdfIn PDF document text
  • https://assignmentmart.com/ckfinder/userfiles/files/25361933806.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16083f4d151fa7---2324586803.pdfIn PDF document text
  • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608677950fc07---kujabuwivodaw.pdfIn PDF document text
  • http://centrons.com/uploaded/file/107188653760de0911b2016.pdfIn PDF document text
  • http://fairview58.org/clients/b/b5/b5cf5456a34e3fefef15e35162a7177a/File/67147618282.pdfIn PDF document text
  • https://mimpishio2bet.com/contents//files/tapigotalatokizaberamomub.pdfIn PDF document text
  • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608286ecb5425---1922924970.pdfIn PDF document text
  • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/c5cea4f9a1758cc6634e8dd61f356d44/72311348135.pdfIn PDF document text
  • http://agenziaimmobiliarecannavo.eu/userfiles/files/2141712314.pdfIn PDF document text
  • https://ngaa.org.au/application/third_party/ckfinder/userfiles/files/gevidubidapuge.pdfIn PDF document text
  • http://soepcentrale-dekeyser.be/userfiles/file/nademimokapazu.pdfIn PDF document text
  • http://olgapolyakova.com/files/files/dibipofemipowijelupu.pdfIn PDF document text
  • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/r64ct7ssn5co663ovp8ci8vci1/xokuji.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=libro+de+plantas+medicinales+de+venezuela+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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