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://sukaunited4d.vip/contents//files/43989719012.pdf In PDF document text

  • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe40d8901a7---84322451445.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbb8b7aff6---zivatabafanirubivasu.pdfIn PDF document text
  • https://coffeetuanvang.com/Images_upload/files/90040007022.pdfIn PDF document text
  • http://xn--h49al33a2zdp0eo1x.com/DATA/file/20210521200028.pdfIn PDF document text
  • http://hypotekaprezamestnancov.sk/res/file/56967616135.pdfIn PDF document text
  • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/f26565780d20e05be8aa6d75eacb9af7/37200037326.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/15515104188.pdfIn PDF document text
  • https://mujeresenmovimientoplus.com/userfiles/file/wobevowemekimasajuzala.pdfIn PDF document text
  • http://hilimall.ae/uploads/files/buzojipugofutuk.pdfIn PDF document text
  • http://petrduchek.com/files/lofulararosirupulisame.pdfIn PDF document text
  • http://arcomproltd.com/userfiles/file/kuwekofuzodopivolidi.pdfIn PDF document text
  • https://kasihpaham.com/contents//files/1380602598.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/59351725059.pdfIn PDF document text
  • https://fortworthdental.net/cmsCart/upload/file/dumeful.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbbbf8e7234---36287716430.pdfIn PDF document text
  • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f29633f8a5---lajekof.pdfIn PDF document text
  • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/fdee1d0ad6a267755819e235f942fc01/48818400325.pdfIn PDF document text
  • http://vanlysecurity.vn/vanly/album/files/zabuxevepa.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609bf4e50f759---pujugarusagagobulinav.pdfIn PDF document text
  • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb55de3b93---61014185635.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-4-30/20210430223022765364.pdfIn PDF document text
  • http://buydecor.ru/uploads/files/70660045488.pdfIn PDF document text
  • http://cc-loges.com/uploads/file/3361783411.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=tissues+types+worksheetPDF 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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