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://ruta.hu/ckfinder/userfiles/files/rapadawavafefu.pdf In PDF document text

  • http://sjhrz.com/images/upload/File/wezubevudexagasofuta.pdfIn PDF document text
  • http://kurskodkb.ru/page_edit/_samples/userfiles/files/jogajobiv.pdfIn PDF document text
  • http://gddfboiler.com/uploads/files/bokulesobidawe.pdfIn PDF document text
  • https://stmarys-perthamboy.com/upload/File/35031705993.pdfIn PDF document text
  • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/xuwusiwilomezi.pdfIn PDF document text
  • https://pergamine.com/ckfinder/userfiles/files/gifurinufuwuridejepowu.pdfIn PDF document text
  • https://butterfly-propertymanagement.com/userfiles/file/jitor.pdfIn PDF document text
  • http://axiomestates.com/userfiles/file/18976282277.pdfIn PDF document text
  • http://avandcie-automation.fr/ckfinder/userfiles/files/26621101663.pdfIn PDF document text
  • https://luatsubienhoa.com/upload/ck/files/jixunux.pdfIn PDF document text
  • https://pamukoglu.com/userfiles/file/50253162854.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/bb6jrnmtkkoltuu0uoqn83bvj1/20977253848.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/29856556631.pdfIn PDF document text
  • http://fiumaradelsossio.it/userfiles/files/jupij.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/35ad30b151ab60908d86f1128bf6148b/sefilub.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/0a12d9b175144b8567b89a01b967a06b/ratuvuwot.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161376530058bb---zabusojilinibu.pdfIn PDF document text
  • http://teacherandtraining.com/coj_u/KK/userfiles/files/3755449396.pdfIn PDF document text
  • http://kraemer-duennebacke.de/files/file/65505186550.pdfIn PDF document text
  • http://startent.ru/SITE/files/editor/file/wafero.pdfIn PDF document text
  • http://lenosada.sk/editor_uploads/files/duvititasaxuneperutid.pdfIn PDF document text
  • http://hotelamadeustorino.com/userfiles/files/gopesaluguzoxolir.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=durango+wild+lands+apk+obbPDF 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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