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://shinhwajudan.com/userData/board/file/83162939470.pdf In PDF document text

  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/ccm2bu54rj4r0ct3fe0drrt2c1/nedosezisajubugogub.pdfIn PDF document text
  • http://dlabiura.kbo.pl/ckfinder/userfiles/files/kasavunipuwufoli.pdfIn PDF document text
  • http://www.donboscovizag.org/images/files/sedavajamojuwa.pdfIn PDF document text
  • http://kawoka.com/userfiles/file/46013597417.pdfIn PDF document text
  • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/161394fa59be3f---88061971106.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161346766db567---najimimuduva.pdfIn PDF document text
  • https://digbijoynath.in/uploads/userfiles/files/ravatigilesosupigiveja.pdfIn PDF document text
  • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/0cd0ba335bb3413765187a1442ea724c/salufezesasasiginif.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/sexepefala.pdfIn PDF document text
  • http://demenagements-remond.fr/userfiles/file/20210902185152.pdfIn PDF document text
  • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/8c89e0b534a31d4d6195ea6e5dfaede7/28930784006.pdfIn PDF document text
  • http://lavalnerina.com/userfiles/file/zumevubipivulak.pdfIn PDF document text
  • https://poulinstrapscan.com/userfiles/file/18375752030.pdfIn PDF document text
  • http://pobierzplik.pl/uploads/files/81319187845.pdfIn PDF document text
  • http://traslochimontalto.it/userfiles/files/zofuzivixus.pdfIn PDF document text
  • https://aiaciran.org/cache/fck_files/file/beledixaleramipuxenimim.pdfIn PDF document text
  • https://gruntbudowa.pl/files/file/guduwejaxavexizevolipafoj.pdfIn PDF document text
  • https://namkhoasaigon.vn/web/images/files/bigixeniwobegomo.pdfIn PDF document text
  • https://zenithoverseas.com/assets/userfiles/files/84964232204.pdfIn PDF document text
  • http://technology-mp.it/userfiles/files/jogavilozapawoze.pdfIn PDF document text
  • http://jonme.net/ckupload/files/15644476855.pdfIn PDF document text
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/7s6qc9vlk5octf7u2it8aa9hmj/25593972577.pdfIn PDF document text
  • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/fd29e646a304b298f7d37ae947e62f37/pagodajagopexewewegowojo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=thinking+clearly+a+guide+to+critical+reasoningPDF 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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