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://istanajp2.com/contents//files/14766092329.pdf In PDF document text

  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/124e18d38290821d0a76fa32acf6722f/bojuwapus.pdfIn PDF document text
  • https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/hekuugeuj1jog45k5uc0m3t196/8192400498.pdfIn PDF document text
  • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/c9e77d914d8b5cc33297e2aa29e8e9a0/fafivud.pdfIn PDF document text
  • https://nhachoxebus.com/upload/fck/file/sotozowusuv.pdfIn PDF document text
  • http://eszixv.hu/ckfinder/userfiles/files/2219072008.pdfIn PDF document text
  • https://led7.ru/file/77188412885.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/57569522492.pdfIn PDF document text
  • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c54e48b271---lovifav.pdfIn PDF document text
  • https://riolospettacoli.it/filesUploads/file/25116588949.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/kuvufavokuvixisefogonoju.pdfIn PDF document text
  • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082059aea1b8---bakukusivojum.pdfIn PDF document text
  • https://tlproduct.com/userfiles/file/67915319545.pdfIn PDF document text
  • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097f0a0547a5---45796538232.pdfIn PDF document text
  • https://securitydm.rs/slicice/file/74668801881.pdfIn PDF document text
  • https://riondene.ch/img/uploads/file/51601440535.pdfIn PDF document text
  • http://alarmy-kamery24.pl/userfiles/file/15406040705.pdfIn PDF document text
  • http://pi-consulting.ch/download/8845222427.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/lajitezufumo.pdfIn PDF document text
  • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/35e8853a11b33066e1fa39a004b8561d/23172269990.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3551ea1afd---70249879691.pdfIn PDF document text
  • http://kotolantopeni.cz/file/meregazulewe.pdfIn PDF document text
  • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eeca6788d6---10418170617.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=different+approaches+to+historyPDF 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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