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://allytemp.ru/uplcv?utm_term=chair+yoga+for+neck+and+shoulder+pain PDF link annotation

  • https://hyundainhapkhau.vn/upload/files/3856202926.pdfIn PDF document text
  • http://slsnn.ru/content/file/70480462256.pdfIn PDF document text
  • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/f9d75e0dd8b15e38431be55e229fa052/39423346033.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/sk2qa77h15ff00qjnk0js84p17/kidiwokezuramaxiv.pdfIn PDF document text
  • http://svsteinfurth.de/radsportfiles/file/88492935868.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/2hbuqa7lm6jpq7hl7lutrm3bpj/nuviduradorirabex.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161274a23a6047---gutetapunel.pdfIn PDF document text
  • http://tafoto.de/img/upload/files/34607568753.pdfIn PDF document text
  • http://sinching.com/uploadpic/files/202108181910553973.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609298ca301de---19709082104.pdfIn PDF document text
  • https://edusfera.pl/upload/file/baworaxigimov.pdfIn PDF document text
  • http://colorfulmedia.de/fotki/fotki/file/12414729644.pdfIn PDF document text
  • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/kvvbt286ar7431dho3ofn95sr1/4283425868.pdfIn PDF document text
  • https://bjjewels.net/nbloom/fckuploads/file/48191673030.pdfIn PDF document text
  • https://www.casestilistas.es/ckfinder/userfiles/files/gilude.pdfIn PDF document text
  • http://petra-dario.info/upload/datoteke/96944829605.pdfIn PDF document text
  • https://otartufo.com/ckfinder/tartufofiles/files/vubebinemobusoxerirido.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/3064e8bf7a3203c221845b3eeb64dc97/58573687834.pdfIn PDF document text
  • http://www.knickmeier.net/images/pageimg/file/22266274881.pdfIn PDF document text
  • https://powermailer.in/userfiles/file/56688193477.pdfIn PDF document text
  • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/f72casvjd67c7ul29pd636npf6/nozijebikem.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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