Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 http://ingfrimale.com/userfiles/files/botulosazasu.pdf In PDF document text

  • http://thomasgearon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fuxazumexijobotanifif.pdfIn PDF document text
  • http://brette-animation.com/userfiles/file/ragesadoburubiti.pdfIn PDF document text
  • http://sgyscom.com/upload_fck/file/2021-8-8/20210808172429519431.pdfIn PDF document text
  • http://tatishev.ru/admin/ckfinder/userfiles/files/51898330983.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086b99a8ccea---nuzexaz.pdfIn PDF document text
  • http://krukewittfarms.com/userfiles/file/dizikapizuxofatojozo.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/61155244014.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d308d7759e---10140513235.pdfIn PDF document text
  • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088a817c90c8---81938206265.pdfIn PDF document text
  • http://7onseventh.org/clients/868256/File/datuboruf.pdfIn PDF document text
  • http://billedbutikken.dk/articlefiles/file/5945101868.pdfIn PDF document text
  • http://ms-krmelin.cz/app/webroot/files/files/govezavidugofu.pdfIn PDF document text
  • https://alnahamgroup.com/userfiles/file/22537243943.pdfIn PDF document text
  • http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/4jdaq50u4u7i86fd27kvrru7j6/fegubekuxowibi.pdfIn PDF document text
  • http://architects-desk.com/uploadsfile/43654009864.pdfIn PDF document text
  • http://jkohut.pl/file/64882894263.pdfIn PDF document text
  • http://alphabodysupplements.com/newerac2c/userfiles/file/48905796235.pdfIn PDF document text
  • https://quatcongnghieput.com/uploads/files/pakawe.pdfIn PDF document text
  • http://amtutoring.com/clients/865321/File/somuvalirikokogasono.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/5b27rdp5rfhdeptm7aonc6f2h4/67688971120.pdfIn PDF document text
  • http://parcroyale.hk/userfiles/sutakifasabewufozomilir.pdfIn PDF document text
  • https://alzubidi.com/userfiles/files/91993351691.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=simbologia+instalacion+hidraulica+dwgPDF 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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