Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://queure.ru/uplcv?utm_term=dairy+production+and+management+pdf PDF link annotation

  • http://criollo-cocoa.com/userfiles/file/jusamuvoteme.pdfIn PDF document text
  • http://santabruna.cl/upload/file/48047058621.pdfIn PDF document text
  • http://archifolder.com/userfiles/files/fesetovibomalufomidares.pdfIn PDF document text
  • https://rhodium.vn/uploads/news_file/nibigiwisokatenomufenewov.pdfIn PDF document text
  • http://debandhelder.nl/ckfinder/userfiles/files/14077605735.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ccbae4662b---wojut.pdfIn PDF document text
  • http://bkht.vn/userfiles/file/13364697268.pdfIn PDF document text
  • https://thegmsbihta.in/userfiles/file/91121428303.pdfIn PDF document text
  • http://www.kroonzuivel.nl/ckfinder/userfiles/files/88885755106.pdfIn PDF document text
  • https://mygoaltv.org/ipp/images/uploads/files/21484140266.pdfIn PDF document text
  • https://armenia4d.com/contents/files/sevakulomafogukama.pdfIn PDF document text
  • http://xfswchem.com/upload/files/kinefikovikipejatasijudep.pdfIn PDF document text
  • https://hbfilm.ca/resimler/files/54294608284.pdfIn PDF document text
  • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/8ea3215da662763065134890fc33b651/mokisipeninikex.pdfIn PDF document text
  • https://knurussian.kr/DATA/upload/files/202109120616591597.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146257452a13---28047758516.pdfIn PDF document text
  • https://koncnc.com/genelresimler/file/19478687104.pdfIn PDF document text
  • http://seamacros.com/upload/file/nilogufasake.pdfIn PDF document text
  • http://gok-maciejowice.pl/js/ckfinder/userfiles/files/pilotiriturewesovewi.pdfIn PDF document text
  • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614b6d612e4e4---bodatewatewaguguj.pdfIn PDF document text
  • http://abwmarlboropike.com/uploads/files/kovefotofomute.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/u2s8kch1vvcjqjvi18tnhecka0/givotifarawukorerebuz.pdfIn PDF document text
  • https://factorysales.com/userfiles/files/89273303155.pdfIn PDF document text
  • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/xaludu.pdfIn PDF document text
  • https://epagneuls-bretons.fr/caningest/images/file/daten.pdfIn PDF document text
  • http://praguynakorn.com/praguynakorn/picture/datapro/files/womobebolasegesom.pdfIn PDF document text
  • http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/6926730.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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