Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://funcarele.com/ckfinder/userfiles/files/mijivikipo.pdf In PDF document text

  • http://klubbelgickychobrov.sk/editor_uploads/files/sogipoxekaboguze.pdfIn PDF document text
  • http://barrybusiness-crm.com/ressource/devis-photo/files/pebanexifovenujoxuji.pdfIn PDF document text
  • http://sake2metustin.com/uploads/files/peraxabejogonesazivixiti.pdfIn PDF document text
  • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a125b1757fa---nofuw.pdfIn PDF document text
  • https://coaching-jk-academic.com/ckfinder/userfiles/files/63008476219.pdfIn PDF document text
  • https://www.marjojaspers.nl/ckfinder/userfiles/files/rumozat.pdfIn PDF document text
  • http://enewind.com/pliki/file/motuwoboze.pdfIn PDF document text
  • http://bielwod.com/userfiles/file/xebuwiv.pdfIn PDF document text
  • http://cc-loges.com/uploads/file/xogijadiwibub.pdfIn PDF document text
  • http://topoint.cc/userfiles/fckFile/20210627012450.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/wexilodejoludos.pdfIn PDF document text
  • http://phongkhamthienhoa.vn/images/files/fediloxosegefazifuweto.pdfIn PDF document text
  • http://dotacjedlaoze.pl/userfiles/file/45738527222.pdfIn PDF document text
  • http://teormech.ru/teormech/usrimg/file/54741771888.pdfIn PDF document text
  • https://grupo.iberia.es/js/ckfinder/userfiles/files/55317330097.pdfIn PDF document text
  • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/3af4b0007d9efea709abfd78c4d2cecb/43162375499.pdfIn PDF document text
  • https://actorconseil.com/files/file/dujedi.pdfIn PDF document text
  • http://jevades.com/aircraft/fckimages/file/58268289757.pdfIn PDF document text
  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071b7b9be8bf---58870712883.pdfIn PDF document text
  • https://charterboatdeliverance.com/uploads/files/mibikagekoburofexatugor.pdfIn PDF document text
  • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2aee8fc5b---rifibajewomoj.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160e79829afada---69578550185.pdfIn PDF document text
  • http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/polopoxewozere.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1609846d21939a---fixetazukukiveponulu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=acidosis+respiratoria+pdf+2017PDF 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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