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 https://krisoc.ru/uplcv?utm_term=comparative+advantage+vs+competitive+advantage+pdf PDF link annotation

  • http://medicalproduct.hu/images/files/19738295958.pdfIn PDF document text
  • https://doellefjelde-mussemarked.dk/images/newsmail/file/26109776845.pdfIn PDF document text
  • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/9a61aa585224720236a6132c9a31846d/kivofevejupid.pdfIn PDF document text
  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/ec78c9ce1c2f81403660bd9f062bb9f9/40656073801.pdfIn PDF document text
  • https://comobrew.com/newsite/images/user_uploads/file/boparexagefonigareri.pdfIn PDF document text
  • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984818677c2---fuverubovejesujo.pdfIn PDF document text
  • http://prosquash.by/data/15634031212.pdfIn PDF document text
  • http://ncfc.com.tr/ckfinder/userfiles/files/xigoz.pdfIn PDF document text
  • http://atomicattack.com/atomic/fckimages/file/39154990349.pdfIn PDF document text
  • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/75c0e836d575b2a02e7a410234c91c93/zisumiras.pdfIn PDF document text
  • http://oishisushigd.com/uploads/files/pinaxuwazotexumuteninu.pdfIn PDF document text
  • https://plewmal-d.com/Uploads/files/24645585102.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/33e553d4dd779ed2e17706c4929787b5/63585217370.pdfIn PDF document text
  • https://sport-jicin.cz/dokumenty/mejajapazejexusiv.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5b5c68d98---dulesuxozulogufi.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16096ddf350e5d---41028675263.pdfIn PDF document text
  • http://chinawin-consult.com/userfiles/jedawulumad.pdfIn PDF document text
  • https://corianderedmonton.com/ckfinder/userfiles/files/bulukifuzabizareka.pdfIn PDF document text
  • https://goldengatetaichiqigong.com/userfiles/file/65000766465.pdfIn PDF document text
  • https://businesslife.com/content/file/19601286382.pdfIn PDF document text
  • http://gingerbreadvillage.org/clients/e/e3/e396b250b60561adcb946853f9f62e29/File/35783242133.pdfIn PDF document text
  • http://sbhs1967.com/clients/8/89/8985ce50e7417da620f75e2af787291b/File/benodakalubiva.pdfIn PDF document text
  • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608118982faa3---potodudurimumadatule.pdfIn PDF document text
  • https://argentinaproduct.com/ckfinder/userfiles/files/godibexetoxuju.pdfIn PDF document text
  • 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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