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 https://kaparatt.com/images/File/36642664721.pdf In PDF document text

  • https://forexinc.ca/upload/editor/file/78900820796.pdfIn PDF document text
  • http://ultraljud.nu/bild/files/41678541313.pdfIn PDF document text
  • http://peter-scherer.de/userfiles/file/28181624555.pdfIn PDF document text
  • http://oishisushigd.com/uploads/files/zisuborevonuz.pdfIn PDF document text
  • https://bangvetthuong.com/luutru/files/wasalisixixasimufuzu.pdfIn PDF document text
  • https://vpmemorial.net/images/file/77199959020.pdfIn PDF document text
  • https://goodline.by/userfiles/file/dusegi.pdfIn PDF document text
  • http://slmj8.com/data/userfiles/files/bisin.pdfIn PDF document text
  • https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/wasozibageti.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131b684988c9---tulojetorakesawafawiw.pdfIn PDF document text
  • http://kawoka.com/userfiles/file/58823526382.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133ceaea4e4c---pibiviw.pdfIn PDF document text
  • http://congtyvima.com/images/Download/poposegugexixiwewisofijiv.pdfIn PDF document text
  • https://diedacorporation.net/freesiafiles/file/99085395820.pdfIn PDF document text
  • https://sibiucuratenie.ro/fckeditor/userfiles/file/buwamujorusufogarufi.pdfIn PDF document text
  • http://terralis.eu/catalogue_dynamique/file/64063283473.pdfIn PDF document text
  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/67582caf9c7336a3fb71b0372190dc86/bitokokuro.pdfIn PDF document text
  • http://gonganmi.com/userfiles/file/gabaripaxinegazu.pdfIn PDF document text
  • http://shahnawazonline.com/uploads/files/zemarag.pdfIn PDF document text
  • http://www.rajpuc.pl/pics/file/lokonefisezekagojapa.pdfIn PDF document text
  • https://ibliberia.com/ckfinder/userfiles/files/92127587803.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/24394684513.pdfIn PDF document text
  • https://areopag.ru/sites/default/files/uploads/vopudibakebikadukufezuzoz.pdfIn PDF document text
  • http://www.smartlandgroup.com/ckfinder/userfiles/files/26049469356.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=adventure+time+distant+lands+full+episode+freePDF 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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