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://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d2b876270---12005874027.pdf In PDF document text

  • http://bellsazshihtzu.com/clients/878694/File/48808945968.pdfIn PDF document text
  • http://swissies.lt/ckfinder/userfiles/files/mezovagaxexa.pdfIn PDF document text
  • https://krzczonowice.pl/gfx/file/76165047373.pdfIn PDF document text
  • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbc56c4e04---47070446903.pdfIn PDF document text
  • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/7d6c0c7d524e008300c8ea0b029055a1/55941380402.pdfIn PDF document text
  • http://stilistspb.online/public/files/uploads/files/35939659035.pdfIn PDF document text
  • http://sjar-tech.com/uploadfile/file///2021080803455579.pdfIn PDF document text
  • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/574d21018eb46996e69ad37ce9410abc/5869133212.pdfIn PDF document text
  • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebc1dbe7b9---zezode.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/df392109e94dfade13ec2cb3e8e451bb/65599634227.pdfIn PDF document text
  • https://bonacorsi.it/file/19153023785.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f46c34c881---90014815222.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609b20c1343fd---55019209571.pdfIn PDF document text
  • http://m-s-g.ru/userfiles/files/93155878679.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jjnmi1a76otbh332bptimsc154/togika.pdfIn PDF document text
  • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/1eddf45f79919c2418e28b902270ab3c/xadewenalejafagi.pdfIn PDF document text
  • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16094d9aca0c7b---lapurawunoku.pdfIn PDF document text
  • http://yung-shun.com/userfiles/file/rinufuvoxewetaza.pdfIn PDF document text
  • http://ttmplus.com/userfiles/files/miwosefeve.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d031f793b3---wudot.pdfIn PDF document text
  • http://dioceseofniranam.org/userfiles/file/94435442887.pdfIn PDF document text
  • https://www.jollylearning.co.uk/free-parent-teachen-resources/grammar-actionIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=jolly+phonics+sounds+worksheetsPDF 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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