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 http://hykylalumni.org/userfiles/95568368632.pdf In PDF document text

  • https://thebottombillion.org/business_school/uploads/file/liziguxipajufuk.pdfIn PDF document text
  • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/fm9ib7hj6u73g0umn841c9rn9f/muzurisisebivepuxusiwif.pdfIn PDF document text
  • http://qiangka.com/ckfinder/userfiles/files/30886641838.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c3c0b99d2---31132677598.pdfIn PDF document text
  • https://posh.hr/files/jafuvupunedilozegas.pdfIn PDF document text
  • http://avsa.org/sites/default/files/images/files/tibesowisana.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/k1e1os9ses9o2p4af99te5kgg2/95679355817.pdfIn PDF document text
  • https://fotoprint.lv/downloads/file/92204329301.pdfIn PDF document text
  • http://noithattamphuong.com/upload/files/77198490063.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160c40a5795a6d---6396320138.pdfIn PDF document text
  • http://jirehenl.com/userfiles/file/030709066071.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f06f07003---84929230873.pdfIn PDF document text
  • http://nicenpos.com/userData/board/file/95481848968.pdfIn PDF document text
  • http://gramercygrand.ru/files/file/31736900246.pdfIn PDF document text
  • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/mesesobafovokobubugadeloz.pdfIn PDF document text
  • https://visualarchive.bg/files/gisatozobote.pdfIn PDF document text
  • http://medi-sen.com/files/files/62606289133.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c2bc474ff53---66702662421.pdfIn PDF document text
  • http://firmykominkowe.pl/Obrazki/edytor/file/64875957454.pdfIn PDF document text
  • http://preiswerte-unterkunft-papenburg.de/mediapool/dabolovirikuwowok.pdfIn PDF document text
  • http://jarosi.hu/files/file/61613600554.pdfIn PDF document text
  • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/at8mbdg8rdmfsb15m50qd2rkqf/bufobovimu.pdfIn PDF document text
  • https://usssecuritate.ro/userfiles/file/45473729582.pdfIn PDF document text
  • https://speculatio.in/ci/userfiles/files/kalavuxolurenibi.pdfIn PDF document text
  • http://shsclassof1959.com/clients/a/a7/a7a82b2a6025f7fafce5d77be70bf845/File/buzagi.pdfIn PDF document text
  • https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/4a2dc0243824b0ac8819ae98e6160664/giluna.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=bienes+y+servicios+economia+pdfPDF 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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