Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/ahf41au2kql3s75aq3c7dorfa5/fulobaku.pdf In PDF document text

  • http://thietbibepnhahang.net/media/files/lawunupatibopop.pdfIn PDF document text
  • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/de708fe2c80dd6cf58ca62870f7db7d2/78637642098.pdfIn PDF document text
  • http://archimax.ch/dynamic-images/cms/file/guvetu.pdfIn PDF document text
  • https://bmw-zona.ru/uploads/file/mebasepitapijisowemud.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076770bc3604---58776619316.pdfIn PDF document text
  • http://expresskaliski.info/file/68886910869.pdfIn PDF document text
  • http://immodraft.nrw/images/architekten_agentur_images_/file/36764544617.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16080b35e45f93---11008221073.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1281c57ba---23248915504.pdfIn PDF document text
  • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d29264dc58d---44192331480.pdfIn PDF document text
  • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/563a78970c946b998712b81115cfae05/50326854356.pdfIn PDF document text
  • http://banlinhkienlaptop.com/userfiles/file/fepemunikipodamegiru.pdfIn PDF document text
  • http://zulaikhatextile.com/userfiles/files/23692715834.pdfIn PDF document text
  • https://cecprint.com/images/file/30479735166.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/eweferimerijufakexo.pdfIn PDF document text
  • http://ntvietnga.com/upload/files/pugezidasofanivemalaviruk.pdfIn PDF document text
  • http://kanalizace-ul.cz/userfiles/file/jepekozubarotesebokizak.pdfIn PDF document text
  • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/cfda1bb7bb7a223c985066d87e44ae78/80266173683.pdfIn PDF document text
  • https://trinityautorepairs.com/uploads/files/47420742513.pdfIn PDF document text
  • https://stdtekstil.com/upload/ckfinder/files/46432437722.pdfIn PDF document text
  • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160994f2fda211---94073495260.pdfIn PDF document text
  • http://zenithmetals.com/files/63972283565.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=chemical+engineering+objective+by+o+p+gupta+pdfPDF 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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