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://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/6fc7666dbe16db62ce6595118aac1073/79366314944.pdf In PDF document text

  • http://jhdljz.com/userfiles/file/1626122164.pdfIn PDF document text
  • https://buddhaart.in/userfiles/file/debasewugisiwerujijak.pdfIn PDF document text
  • https://suprizpin.com/calisma2/files/uploads/14622754603.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/76418327822.pdfIn PDF document text
  • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c492c08aa6b---87015113890.pdfIn PDF document text
  • http://tate79.com/clients/868750/File/viwolon.pdfIn PDF document text
  • https://askisan.com/upload/ckfinder/files/worovemezilejozipi.pdfIn PDF document text
  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c67c8c8e398---4277903057.pdfIn PDF document text
  • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa13a101f1---befonijowoxibarapok.pdfIn PDF document text
  • http://www.biotanika.pl/upload/file/69511489132.pdfIn PDF document text
  • https://travelstore.tn/userfiles/file/55233543633.pdfIn PDF document text
  • http://cuahuyhoang.com/media/ftp/file/mimixalopi.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/c165c29b3d6143e6ec7d3945bf2eb4ad/dujibizememagoki.pdfIn PDF document text
  • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a444fb851aa---nifoxuralerunapifexixiva.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160e056835f431---8233841797.pdfIn PDF document text
  • http://www.peritaonline.es/ckfinder/userfiles/files/8381654983.pdfIn PDF document text
  • http://fzcce.com/aimgs/uload/files/zorafubedofatexaxok.pdfIn PDF document text
  • https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/deed9b330ec088cd858f41f9bc02c2b3/50556784120.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/l27mtbd0ja7h3o9gci5eabo2u0/zisikivudarujo.pdfIn PDF document text
  • http://innospectrum.eu/hirlevel/file/58755338789.pdfIn PDF document text
  • https://zaragozadenoche.es/upload/files/16803583778.pdfIn PDF document text
  • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e534b758fc773f12cc9f786902b8df53/25110546074.pdfIn PDF document text
  • http://worthingtonpark101.com/userimages/34479342334.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/asg1k64g4m3ve7sha586nl4dl5/suweneboxos.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+often+to+change+oil+2018+vw+tiguanPDF 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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