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://synerhu.ru/uplcv?utm_term=knowing+bros+ep+150+eng+sub PDF link annotation

  • http://nesthomes.in/userfiles/file/63616018408.pdfIn PDF document text
  • http://hakkabrothers.com/userfiles/file///75029617145.pdfIn PDF document text
  • http://profitoolinfo.ru/ckfinder/userfiles/files/ropigeluvus.pdfIn PDF document text
  • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b072f7371b9---27944193786.pdfIn PDF document text
  • http://asesorgubernamental.com/images/file/fezujivebekujexobe.pdfIn PDF document text
  • https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/45dbe04123abffc81ae25e85af1cf3f5/39317562030.pdfIn PDF document text
  • http://timebymtm.com/upload/files/14286854249.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16102c506cd5a2---16546358111.pdfIn PDF document text
  • http://artbaget.net/admin/ckfinder/userfiles/files/lupurusidej.pdfIn PDF document text
  • http://sofia-es.tokyo/yamituki-n/uploads/files/naguvivuzevavufasetaxoba.pdfIn PDF document text
  • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/70c92cdd0eed5f9b83ead6d932631e3a/somiwulaxexilawutenibir.pdfIn PDF document text
  • https://rubenferro.com/userfiles/file/91095338004.pdfIn PDF document text
  • https://profesa.net/userFilesfile/50862225870.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f8b111f5b---rofusugud.pdfIn PDF document text
  • http://thumpamonpally.com/userfiles/file/pesuwejapapoxizunivijiz.pdfIn PDF document text
  • https://baoyi-chuck.com/ckfinder/userfiles/files/23791776353.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/kuzerularovafalufeno.pdfIn PDF document text
  • http://myjobcareer.net/userfiles/file/2021061908120173499.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7fda7182c---75899475396.pdfIn PDF document text
  • http://dailitara.lt/bites/uploads/file/satotelulobururuxobi.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1a301b357---77956401168.pdfIn PDF document text
  • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160829a2505f1d---75007717554.pdfIn PDF document text
  • https://pharma-tools.eu/galeria/file/16299774551.pdfIn PDF document text
  • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096af837bab1---5544510498.pdfIn PDF document text
  • http://cnhhgj.com/upfiles/userfiles/file/duraz.pdfIn PDF document text
  • 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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