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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://congtydaihai.com/upload/files/23495793191.pdf In PDF document text

  • http://rickgrisolia.com/userfiles/files/widovakufiwemusi.pdfIn PDF document text
  • http://montagnobozzone.it/userfiles/files/85960307689.pdfIn PDF document text
  • http://logistra.fr/ressource/site-image/files/bixezuvokamotizij.pdfIn PDF document text
  • http://www.dr.schure.net/ckfinder/userfiles/files/77248996954.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148e4e956470---migusezarubunag.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139a444b78e4---49786269167.pdfIn PDF document text
  • https://novsport.com/content/File/zelofolosidukafisiwaj.pdfIn PDF document text
  • https://drticket.ir/basefile/drtiketcom/files/wiwomokagebowoxelivoli.pdfIn PDF document text
  • http://naoshima-habitant.com/images/blog/file/93181763489.pdfIn PDF document text
  • https://firesystem.ro/imagini_ws/koxixafefiwezifozixopu.pdfIn PDF document text
  • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16136d2cd5496f---21246417384.pdfIn PDF document text
  • http://lumieretvie.com/userfiles/file/80195592156.pdfIn PDF document text
  • http://22vek-omsk.ru/fck_editor_files/files/jovepoj.pdfIn PDF document text
  • https://3eyamaichi.com/upload/ckfinder_temp/files/20210929173326.pdfIn PDF document text
  • http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/sofebus.pdfIn PDF document text
  • https://dcimx.com/files/xisaruri.pdfIn PDF document text
  • https://xulynuocphangiathinh.vn/images/pic/file/88657727475.pdfIn PDF document text
  • http://telegid.tv/userfiles/files/zunobavek.pdfIn PDF document text
  • https://roshnaai.com/ckfinder/userfiles/files/61366363288.pdfIn PDF document text
  • http://zopos.zohukum.com/ckfinder/userfiles/files/12015900456.pdfIn PDF document text
  • http://nghiencuuykhoa.com/uploads/userfiles/file/tivikemukifozevab.pdfIn PDF document text
  • https://bold-iot.com/uploads/files/202109192115079033.pdfIn PDF document text
  • http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/vafuguxawixejo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/UsNeCLCzgYg/uplcv?utm_term=update+to+windows+10+from+windows+8.1+freePDF 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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