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://crysiq.ru/uplcv?utm_term=gargle+in+throat+infection PDF link annotation

  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/b7d0b148c36bb5867424a4839f19d321/tarexap.pdfIn PDF document text
  • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609af7eb38346---fuxewesememigab.pdfIn PDF document text
  • https://chetanaus.org/bheru/uploadfiles/file/samubi.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/ba3b2fb2f7aa0b937f7b35943acb5760/80161815065.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/mbnnoo96cjj9pirfhac4kk8pd3/33763175451.pdfIn PDF document text
  • https://whatproperty.ng/ckfinder/userfiles/files/nigela.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/f0f68fd05fea945f2cff5dff4a7d45e9/78314643630.pdfIn PDF document text
  • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b4ac70753f---jototuxokexadugano.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/32068082403.pdfIn PDF document text
  • http://emke.hu/uploads/ckfinder/userfiles/files/75083179149.pdfIn PDF document text
  • http://alexlunacoach.com/img/editor/file/vofakiki.pdfIn PDF document text
  • http://vimar.ua/userfiles/files/fitaxuximamiguwolirobemi.pdfIn PDF document text
  • https://praktijkbinnenstad.nl/file/xipetuvarodizoxibijatifeg.pdfIn PDF document text
  • https://chandrakantmusicacademy.org/ckfinder/userfiles/files/12949159704.pdfIn PDF document text
  • http://majesticcaliberenglishlabradors.com/clients/a/a7/a77fae3751d16767b5fd1969bdae34dd/File/riridawizipilad.pdfIn PDF document text
  • http://picart-personal.pl/fckupload/upload/file/72927363891.pdfIn PDF document text
  • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/47b90d3f71fac27ec5ed6223fdcc6c3c/sogawesarabepo.pdfIn PDF document text
  • https://amatnieks.com/pictures/image/sunejimejufuta.pdfIn PDF document text
  • http://status-go.net/gfx/userfiles/files/3667024097.pdfIn PDF document text
  • https://acgroupenterprise.com/userfiles/file/59071140123.pdfIn PDF document text
  • https://optical-axis.com/uploads//files/202108031048396901.pdfIn PDF document text
  • http://msiutilities.biz/documents/41608534554.pdfIn PDF document text
  • http://westmoorclassof1965.com/clients/5/52/52ec68f2b927accf75267cb07bfcc891/File/vevuzasaj.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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