Malicious PDF — malware analysis report

Heuristics 6

• 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 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://synerhu.ru/uplcv?utm_term=c+program+to+find+sum+of+n+natural+numbers PDF link annotation

  • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/09cd9a5418539c0d0fc0a3093c179c7f/putiri.pdfIn PDF document text
  • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/8fln7bjm7tqn11o6p30ttf30u2/xutasixujijala.pdfIn PDF document text
  • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/o1qblb9cb0em1te273731kl8na/32365363708.pdfIn PDF document text
  • http://bafiti.com/sklep/userfiles/file/zugifurilenurisumodob.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16090ddb0b105e---11611267985.pdfIn PDF document text
  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa50791be2---wubesovinoge.pdfIn PDF document text
  • http://centralgiving.com/media/userfiles/file/soxenepirarefu.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a75846205ad---96589573731.pdfIn PDF document text
  • https://kueapem.com/contents//files/xanexegom.pdfIn PDF document text
  • http://muntepa.com/userfiles/files/nipemujom.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e487b572f---xuweranuzofutefupusa.pdfIn PDF document text
  • https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/acb5c1718c4fff79917ab2edc56c0cc1/77262321161.pdfIn PDF document text
  • http://lycee-elm.org/userfiles/file/89501760327.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c3783a390ce---18405472988.pdfIn PDF document text
  • http://precedent.by/_newsite/images_from_html_editor/file/15352687166.pdfIn PDF document text
  • http://bjaimama.com/data/upload/2021/07/file/202107090554074068.pdfIn PDF document text
  • http://chinhlytailieuluutru.com/media/ftp/file/tagelevipabubisus.pdfIn PDF document text
  • http://diegogenna.it/userfiles/files/nopitawuxaguwa.pdfIn PDF document text
  • http://nissanotogovap.net/uploads/images/files/31190732684.pdfIn PDF document text
  • https://hotellemaritime.com/hotel/upload/files/65765862759.pdfIn PDF document text
  • https://suavitinhtannha.net/upload/files/88162473523.pdfIn PDF document text
  • http://chukysovin.com/img-svc/files/8519146435.pdfIn PDF document text
  • https://maytinhdalat.vn/images/uploads/files/32625705345.pdfIn PDF document text
  • http://mppscstudy.com/admin/usercontent/file/65188458818.pdfIn PDF document text
  • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607855bb8d963---6530118901.pdfIn PDF document text
  • http://timandlor.com/userfiles/file/risamapixetubulesed.pdfIn PDF document text
  • http://westhollywood.ilovepokebar.com/uploads/files/bigaxajuxufozakegelokuko.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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