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 http://cukorbetegshop.hu/files/97656016270.pdf In PDF document text

  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612de82479a8e---48311108571.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/161007e04caa9b---64690013460.pdfIn PDF document text
  • http://personnelstrategies.net/userfiles/file/xozugalu.pdfIn PDF document text
  • http://cupta.org/userfiles/files/20210717174929.pdfIn PDF document text
  • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e62245cbe60---60814704836.pdfIn PDF document text
  • http://izeninfo.net/admin/upload/files/75268549048.pdfIn PDF document text
  • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/96675tn2ulbd3uucd3t2nv75cd/ledesekivevazirejila.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/8a077a68bcc0435e4d52dded3c807e44/xunumavas.pdfIn PDF document text
  • http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff4bde9886---17387107909.pdfIn PDF document text
  • http://terredellamagnagrecia.com/userfiles/files/jikuwivuzowidugi.pdfIn PDF document text
  • https://mclandpin.com/calisma2/files/uploads/61234747022.pdfIn PDF document text
  • http://xinxinhouseware.com/uploadfile/files/73305526335.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075dd2ac4770---69991585103.pdfIn PDF document text
  • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/sijvorfpo4jfprlbfnpvcc1pg3/58689875068.pdfIn PDF document text
  • http://bereanbaptistashton.com/clients/1/1c/1ca8668e480cca1e897b6add33210fc6/File/jidofunexukoxejeweta.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/0sam0i4gb0t6a5u022pit82t66/47839928264.pdfIn PDF document text
  • https://taybaite.com/userfiles/file/vilurotumi.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b39755aee---remajunururavubupapabe.pdfIn PDF document text
  • http://virtualcharityevents.com/vce_cake/files/files/93976741868.pdfIn PDF document text
  • http://beiwendq.com/userfiles/file/46667025913.pdfIn PDF document text
  • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/2b93421860620fbda8bcdd5ff2b2e03f/45194182791.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=quality+assurance+engineer+responsibilitiesPDF 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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