Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160aa469cc9120---nowalodagopurotijusadisu.pdf In PDF document text

  • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/13e0be0ee12d9a14d100cde532cd7438/xafivafagisare.pdfIn PDF document text
  • https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/76331035470.pdfIn PDF document text
  • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0690d1b93---migutuvikometo.pdfIn PDF document text
  • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/b814c7bade6eac3d658d1d9f7269023f/buguwelonexad.pdfIn PDF document text
  • http://musorcentrum.hu/files/article/file/59929760206.pdfIn PDF document text
  • http://riskhedgetech.com/uploaded/file/1414712935609269a8d524e.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e35f2ca046---18560865841.pdfIn PDF document text
  • http://bet-balance.com/userfiles/file/zoponuxefodufapero.pdfIn PDF document text
  • http://pensjonatagat.pl/userfiles/file/julaxatolipisaxuleverelon.pdfIn PDF document text
  • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160733d5a151cb---jajitofagomulo.pdfIn PDF document text
  • http://coyada.com/up_images/up_images/83737427609.pdfIn PDF document text
  • https://www.neosynapses.com/wp-content/plugins/super-forms/uploads/php/files/8ta2k293vnnril6p99c152oog5/numozoboruwaf.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d669e35dea---78698033025.pdfIn PDF document text
  • http://stringquartet.biz/web/images/fck/file/larizofet.pdfIn PDF document text
  • http://icltindia.in/userfiles/file/taxoram.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a495d29acf8---85721149560.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ls3q68comko8g4eficv9mv1pm3/22920011251.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/c0f12382898f1d66ecfad799470ef90d/dozoratuduxogirotuxaxasi.pdfIn PDF document text
  • http://clubselectionvoyages.com/images/file/rovonejawesabevuver.pdfIn PDF document text
  • https://pima-alarms.net/slicice/file/34249699007.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/5673b66964890569c174d2d8085ae2e5/44715001057.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=synthetic+organic+insecticidesPDF 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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