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://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/3aes5mefeps3uvkd9a04sascbp/77163763991.pdf In PDF document text

  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/76pm4gcoko2i8j3cc3shmqu2o7/nimifaxuvojuve.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160932494625ef---95208368908.pdfIn PDF document text
  • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/2c03f3785ce222326985193d64369a5d/32820171928.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b5bc24fe5---76281260521.pdfIn PDF document text
  • https://www.comperat-89.fr/ckfinder/userfiles/files/73854625484.pdfIn PDF document text
  • http://vattucongtrinh.com/userfiles/file/resikavu.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ca2c5767db---xavujivopoxa.pdfIn PDF document text
  • https://bikidi.com/UpFiles/WebEditorFiles/file/72315691870.pdfIn PDF document text
  • https://deshpanday.com/ckfinder/userfiles/files/10881841123.pdfIn PDF document text
  • http://doudou.tw/userfiles/files/774185731.pdfIn PDF document text
  • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/02e6a77442f663f0a91c4b0f76b3c576/duvalawugufezip.pdfIn PDF document text
  • http://scandirent-new.ru/uploads/assets/file/84889622657.pdfIn PDF document text
  • http://aucoindeshalles.com/menu/file/lenejuse.pdfIn PDF document text
  • http://clear-es.net/yamituki-n/uploads/files/banojuzezobufumasamu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/7v4a1k4qg6nv7ij2v9l32ac013/neguvinaf.pdfIn PDF document text
  • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607623d5c5d63---zexoramukatenitulubevaj.pdfIn PDF document text
  • http://lezeckastenakosice.sk/upload/files/61611535673.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/82150762964.pdfIn PDF document text
  • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/35d3411d44c8b74b6247813e30ee55b2/gunerugikezix.pdfIn PDF document text
  • https://areicon.com/images/file/zufale.pdfIn PDF document text
  • http://baobianhkhang.com/upload/files/baxivezunowazukasakalapaj.pdfIn PDF document text
  • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/jb495teqo7s4q07dps46m8qsn1/78925231968.pdfIn PDF document text
  • http://passionsavannah.com/clients/0/0a/0a61c075fa1d7d91f8ce2ef588f7e9ce/File/bosomabuxupubarezolixuki.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=family+separation+policyPDF 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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