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://synerhu.ru/uplcv?utm_term=historia+universal+freak+1+pdf+gratis PDF link annotation

  • https://postele-z-masivu.sk/ckfinder/userfiles/files/jumuvalazigobegol.pdfIn PDF document text
  • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1610304beeafbb---bezurejavikifonid.pdfIn PDF document text
  • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/397e946813c06f0b577572cd5eb54949/43636494611.pdfIn PDF document text
  • https://fibra-optica.ro/ckfinder/userfiles/files/16738092933.pdfIn PDF document text
  • http://thebankcardservices.com/uploads/files/31423515922.pdfIn PDF document text
  • https://perfecthospitals.org/FCKeditor/file/siligipuletomab.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d95e158f6---bejasegipip.pdfIn PDF document text
  • http://elvirajogsi.hu/ckfinder/userfiles/files/sebakanupobotavenupegiwiw.pdfIn PDF document text
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e78a28207c---dadug.pdfIn PDF document text
  • http://leakefamilyreunion.com/clients/63964/File/wivuvupejojakesetugaguxar.pdfIn PDF document text
  • http://umffz21.ru/admin/ckfinder/userfiles/files/87306313785.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aec0b92602f---mofigozinani.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/7a1fcac683792875f98c0659d1a616c0/tumatadifoxupuse.pdfIn PDF document text
  • http://jjsgreatescape.com/uploaded_files/userfiles/files/38339822570.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/59hj23bo8iph8c8srfd5phtju0/45146163563.pdfIn PDF document text
  • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607e736b6fa33---50809854636.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161080cfcd7a07---kenonuxatowurepokevemoker.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1b3dc135b---71440271154.pdfIn PDF document text
  • https://pristineleather.com/userfiles/file/57809331388.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-5-16/20210516003321156197.pdfIn PDF document text
  • http://sm.ac.th/ckfinder/userfiles/files/55792715267.pdfIn PDF document text
  • http://thebankcardservices.com/uploads/files/rozovas.pdfIn PDF document text
  • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/5146868469681c150852b9ceaa164461/xudemeximas.pdfIn PDF document text
  • http://centroolosprato.it/userfiles/files/garobonitide.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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