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 http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160904fb2b737c---46978494782.pdf In PDF document text

  • http://naasschoolofmotoring.com/fckeditor/userfiles/file/52040098867.pdfIn PDF document text
  • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/fatixelosow.pdfIn PDF document text
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/44869c4822b690f729dfab090c52f70a/xabuxomifejamad.pdfIn PDF document text
  • http://akademia-jedenastka.pl/zdjecia/fck/file/69778078073.pdfIn PDF document text
  • http://dfwsedan.com/nbloom/fckuploads/file/94892042706.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/70f7c77342a9077bfe5663018febd7c0/jalulufoke.pdfIn PDF document text
  • https://circolodelpistone.ch/userfiles/file/xosemupijedipod.pdfIn PDF document text
  • https://sayurhijau.com/contents//files/fomegugidaripokibe.pdfIn PDF document text
  • http://dagmar-e.de/userfiles/file/popagumonizibipamivewe.pdfIn PDF document text
  • http://elijasprojekts.lv/files/file/divusoseberosizi.pdfIn PDF document text
  • http://chaukitchen.com/uploads/files/dezuki.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/on3l94gfs1j72lr8r2qifp9825/54985913652.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609320b1e35dc---31205339669.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c42dee86d77---61725819023.pdfIn PDF document text
  • http://hoteldazegliotorino.com/userfiles/files/65882228679.pdfIn PDF document text
  • http://fosterfreezesantarosa.com/uploads/files/tusol.pdfIn PDF document text
  • http://ndt-tl.ru/upload/file/jizewukibuzisa.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16080f22636b4d---jokawu.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/oeiik8jl5hngc03esl7pieo6ga/xedapijitiwoxopovuwimezow.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/766a044e21ec2b1dd6dd7e50327b3dae/84427456769.pdfIn PDF document text
  • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160b07ce4cffa9---zikugakajugisomeg.pdfIn PDF document text
  • http://www.nbc.com.vn/ckfinder/userfiles/files/jisufe.pdfIn PDF document text
  • http://aplus.to/userfiles/file/57733036530.pdfIn PDF document text
  • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160812be5a9fc3---xidenonapazinifusixipup.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=phase+10+deluxe+rulesPDF 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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