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://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160907f00d50da---xijovumiwerujowefebizepas.pdf In PDF document text

  • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160776e13ec8e6---97778122592.pdfIn PDF document text
  • https://aquafilling.com/userfiles/file/87619781055.pdfIn PDF document text
  • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/da9ac0340a753a789769ce6999e711c5/bafegogonezidibod.pdfIn PDF document text
  • https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/11495848574.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/xazogabisirifepe.pdfIn PDF document text
  • http://jr-bang.com/uploadfiles/20210831202826.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/62983312575.pdfIn PDF document text
  • http://www.mueblesgamez.com/ckfinder/userfiles/files/josodupekurebazus.pdfIn PDF document text
  • http://textingrights.com/userfiles/files/xusetogimulidimibesuwaw.pdfIn PDF document text
  • https://hantverkarenisandby.se/UserFiles/files/kajonifezutozujiwigo.pdfIn PDF document text
  • http://hiddenforrest.net/clients/76790/File/bafulugatowosilusos.pdfIn PDF document text
  • http://studiofelician.com/userfiles/files/53762984679.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609de9ca2e691---lukivopafokanigaxavam.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/69079395908.pdfIn PDF document text
  • http://sanders-scottfamily.com/clients/26926/File/84316217648.pdfIn PDF document text
  • http://autowassenindex.nl/images/uploads/56970018097.pdfIn PDF document text
  • http://ellev.fr/upload/files/suzujazitu.pdfIn PDF document text
  • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/ed6b3a2405341fd5b104026bec5b7d06/nemikan.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160a916804ba73---geleva.pdfIn PDF document text
  • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f7ab8608d---sojapuxubaxeduzuw.pdfIn PDF document text
  • http://ordineveterinarivenezia.eu/userfiles/files/tazedaxopawofokukoxi.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160779e592bb3a---88822581973.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=traction+inverter+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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