Malicious PDF — malware analysis report

Heuristics 6

• 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://patoman.ro/ckfinder/userfiles/files/67117375851.pdf In PDF document text

  • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/vr8ohkoh0a8q9v8em59v6blni8/jekurasixudar.pdfIn PDF document text
  • http://vietdubai.com/userfiles/file/mukudosotogotupu.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1b77f2a8a---24718713779.pdfIn PDF document text
  • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/noxeniseziperu.pdfIn PDF document text
  • https://megalightgroup.lv/uploads/files/notajutivuxupusiv.pdfIn PDF document text
  • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b14ff0acd3a---sanafizubola.pdfIn PDF document text
  • http://honda-vo.com/upload/file/89317393196.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/hevquig9cqmjf297v7etufeqi3/zamonuzuzagapibopa.pdfIn PDF document text
  • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5c4f7e10d5---zefisijunapolaxosed.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094fa70b5dc5---bemofovir.pdfIn PDF document text
  • https://felicitareonline.ro/ckfinder/userfiles/files/95624274224.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/38e15c3816e63fbe1532a455c5b4f80c/80979370544.pdfIn PDF document text
  • http://tentauto23.ru/ckfinder/userfiles/files/pidubuxomema.pdfIn PDF document text
  • http://apartmaji-zunicmile.com/uporabnik/file/lunaperipela.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/5l9b6ec9oo3259u3v444smhojj/vupajogakemuz.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/8b7dedacef420ba4ed3c20458e54e8df/lilajoxeludasum.pdfIn PDF document text
  • https://aurorabersinar2.com/contents//files/wenuro.pdfIn PDF document text
  • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/vohg6b0olcjpcb5v94vjrgsf7k/1776910625.pdfIn PDF document text
  • http://www.koeru.eu/failid/file/11283439718.pdfIn PDF document text
  • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/iicrvsno0q153b8p8rj379a6vc/13089422023.pdfIn PDF document text
  • http://deborahkay.com/ckfinder/userfiles/files/gekewexerofozunave.pdfIn PDF document text
  • https://sukienmiennam.com/userupload/files/76311540487.pdfIn PDF document text
  • http://3colorjazz.com/fckeditor/userfiles/image/rakovejamagubaj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=fossils+and+geologic+time+worksheet+answersPDF 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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