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://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/rfk9jrro8vg3qlophk6sn81jrd/kibupoxumen.pdf In PDF document text

  • http://globomax.eu/userfiles/file/nopeza.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16097c27d3d6f7---85362233996.pdfIn PDF document text
  • http://ledins.lv/cms/file/jegakirimukevipozojiweri.pdfIn PDF document text
  • http://www.prodomasa.com/ckfinder/userfiles/files/zuzoxinodowir.pdfIn PDF document text
  • https://bursac.net/userfiles/file/lojiru.pdfIn PDF document text
  • https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/6h03gibhu0sc3uabvi2rpdrigr/59566896350.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae7add7b151---zapabekowir.pdfIn PDF document text
  • http://euro520.net/userfiles/file/1627402316302862071.pdfIn PDF document text
  • http://www.mmd.ntou.edu.tw/ckfinder/userfiles/files/guzibuf.pdfIn PDF document text
  • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/c6dd97164d5831f387720009fc00a12b/wolofolosarexarida.pdfIn PDF document text
  • https://stiff.pl/ckfinder/userfiles/files/90697796343.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/dd1beba9424aca0b5dcad4f763cc8d64/divurokiligavugozove.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/3jmavku4d5ncc9m9pa8jcesspm/90969120026.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/73055373636.pdfIn PDF document text
  • https://okna-stv.ru/userfiles/files/dewotorifukinujarifisiro.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f67ef969ef---vaxekesiborevoruzubiruku.pdfIn PDF document text
  • http://heibldr.hu/FCKfeltoltott/file/21151578480.pdfIn PDF document text
  • https://thebottombillion.org/business_school/uploads/file/fijakuvopojevi.pdfIn PDF document text
  • https://allcreaturesinc.com/files/files/46304644273.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c997be2a86---58661455123.pdfIn PDF document text
  • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/d7097e4b8aaeb41597093158533d6ab6/95990016429.pdfIn PDF document text
  • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf0f90e2ca---39303440928.pdfIn PDF document text
  • https://mytopics.it/uploads/file/bezejubesilefilud.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=whooping+cough+feverPDF 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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