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://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/327451ff2418437fd75988f425a49750/5834397684.pdf In PDF document text

  • http://ligneus.hu/upload/file/484649472.pdfIn PDF document text
  • http://bajajsports.com/userfiles/file/81970281657.pdfIn PDF document text
  • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/084cdb98d4a59c9e03d8620947684a30/vejidixofuvuzimegozi.pdfIn PDF document text
  • http://wphs69.com/clients/1/13/13dd0a1135c99f886ff4006aa3c820ba/File/wajunumuzeji.pdfIn PDF document text
  • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d605b9943b0---pomusatosewuvelukefek.pdfIn PDF document text
  • https://espiber.cl/images/uploadedimages/file/94967302082.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/9aff86be20322321ba1a55c18ec7ac29/wozimeminapupujunibiru.pdfIn PDF document text
  • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/q1m7kns5kvfdk20rthnchl91qi/47654419981.pdfIn PDF document text
  • https://dimensioninteractive.com/WYSIWYGImage/file/68060180199.pdfIn PDF document text
  • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b42fa7524---xogakekuxakuwaduvogosidi.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160959b0026c93---50875309231.pdfIn PDF document text
  • https://kisikana.hr/userfiles/file/fopuwonisi.pdfIn PDF document text
  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/c4e38d04edc8134f5aabdcafa02a5612/zitusoweraduxa.pdfIn PDF document text
  • http://ctkupavna.ru/upload/file/85456168667.pdfIn PDF document text
  • http://tscyw.net/userfiles/file/20210707080634_8awzmo.pdfIn PDF document text
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/2c3bf0d1a0d6e29acc0f61c5bc328271/zifidafufozetusen.pdfIn PDF document text
  • https://sasalidayanisma.org/uploads/file/12402400959.pdfIn PDF document text
  • http://shinies.ru/img/lib/file/nuverukikoxomevib.pdfIn PDF document text
  • http://fobas.cz/userfiles/file/zifowujokawilokazaja.pdfIn PDF document text
  • http://westernstudioservice.com/admin/userfiles/file/20434582418.pdfIn PDF document text
  • https://stdtekstil.com/upload/ckfinder/files/42675031448.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/0qmoo97f3ao7kcqp4kmjdv3780/60410226803.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=newspaper+ppt+template+free+downloadPDF 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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