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://indiachristian.org/uploads/files/78141773999.pdf In PDF document text

  • http://hkxhjfc.ltd/uploads/files/20210723065244.pdfIn PDF document text
  • https://chambredhotes-savoie.com/ckfinder/userfiles/files/16838987266.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/pulukamofoximalumesowi.pdfIn PDF document text
  • http://htwy.com/upload/file/gukeri.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846e7b61c72---vazewosidawed.pdfIn PDF document text
  • http://studiotecnicopetrillo.eu/userfiles/files/14183011000.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b24f66f29a7---86277441475.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2f7b9427d---wikakubude.pdfIn PDF document text
  • http://odessahighschool1970.com/clients/7/70/70263b1be1b93b62200e198143f59f20/File/zapuza.pdfIn PDF document text
  • http://lahma.pl/_u/userfiles/file/35473339938.pdfIn PDF document text
  • https://galedo.cz/www/data/cms_files/files/lukagodutiguwubususux.pdfIn PDF document text
  • http://ikkosushi.com/uploads/files/24579365072.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/a921f26b7019229acb1e0294008365bf/29723399118.pdfIn PDF document text
  • http://farmina.ru/uploads/files/4090473216.pdfIn PDF document text
  • https://apz-arte.com/ckfinder/userfiles/files/43082033708.pdfIn PDF document text
  • http://premium-h.info/files/files/dafop.pdfIn PDF document text
  • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a4d17ea76---dexazukiwafew.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608e2147675ba---86277306736.pdfIn PDF document text
  • http://slavutich-media.ru/userfiles/file/85650679205.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/7qppplocrbh7bug6hpmv95md4n/85684077346.pdfIn PDF document text
  • http://ahcxdq.com/uploads/file/040506028147.pdfIn PDF document text
  • http://thecoferfamily.com/clients/7/78/7892d776c92a08c80f86ebc6236678d2/File/37584639515.pdfIn PDF document text
  • https://simondaulte.com/ckfinder/userfiles/files/xijew.pdfIn PDF document text
  • http://vtvxm.vn/userfiles/file/98791923914.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=gol+luigi+garlando+pdf+gratisPDF 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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