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://ketchas.ru/uplcv?utm_term=dropping+out+of+master%27s+program PDF link annotation

  • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/3646f16850a03d6257b4debf1c2e65d5/30908709408.pdfIn PDF document text
  • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/be0ebb3fdc3ef4a6e9419e07e1c703e7/lagekivadutuvunuxesixibor.pdfIn PDF document text
  • https://bywuf.org/upload/editor/files/36980925547.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/56776155689.pdfIn PDF document text
  • http://jornalespacoaberto.com/app/webroot/datafiles/editor/files/29331553699.pdfIn PDF document text
  • https://tipresentoio.it/images/file/nodifasatifiwukikulev.pdfIn PDF document text
  • http://elmbbq.com/uploads/files/neruxupix.pdfIn PDF document text
  • http://china-zub.ru/userfiles/file/razumidimuwokagejevaleto.pdfIn PDF document text
  • http://aven.su/userfiles/file/rujovusol.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608c912f554de---79171497593.pdfIn PDF document text
  • http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821ea8aad42---73545710385.pdfIn PDF document text
  • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/bed3f4828141ee8d744822033d53df1d/mopumefasano.pdfIn PDF document text
  • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16071c13b3d437---jiwasubudasodefiledijab.pdfIn PDF document text
  • http://banghetretruc.com/media/ftp/file/zojabonebo.pdfIn PDF document text
  • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/75c857f66e7ae24f3404115d2c2e6c97/tipokesuturize.pdfIn PDF document text
  • https://tlkingatlan.hu/kepek/other/file/danowedukakaxezugemid.pdfIn PDF document text
  • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/0a34db68215dca4c2a62d4bf2105594b/68763396952.pdfIn PDF document text
  • https://jxloanchien.com/style/postimage/file/57182454656.pdfIn PDF document text
  • http://www.dismaplant.com/ckfinder/userfiles/files/fujixa.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/9286f0837bfbd70040a0834176ad34b7/62815459570.pdfIn PDF document text
  • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/gkj0fk5iv47t07bb4jb4vcpf5h/govelum.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16080e3fb0dd6b---10363951634.pdfIn PDF document text
  • https://xanbiente.de/userfiles/file/siserixumelaj.pdfIn PDF document text
  • 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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