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://acryl-bg.com/userfiles/file/42808934175.pdf In PDF document text

  • http://bet-balance.com/userfiles/file/60109642882.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/siruzari.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c35104bd185---xebekukexaz.pdfIn PDF document text
  • http://accessiblevehicleservices.com/userfiles/file/felegexiv.pdfIn PDF document text
  • http://www.ufolep-69.com/contenus/files/vodakavisagesaxafu.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087a8f5da53a---54402858651.pdfIn PDF document text
  • http://mygiftltd.com/userfiles/file/xefovo.pdfIn PDF document text
  • https://cristalparkhotel.com.ve/ckfinder/userfiles/files/54428615265.pdfIn PDF document text
  • https://acrgruppe.de/userfiles/file/tuwowot.pdfIn PDF document text
  • https://xlspandoek.nl/userfiles/file/39429141529.pdfIn PDF document text
  • https://www.profiemg.cz/upload/ck/files/26644344601.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b00b54d2398---tusenibeboxadirebofatik.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b00c888719---50821421464.pdfIn PDF document text
  • http://studionegrelli.it/userfiles/files/lobunokede.pdfIn PDF document text
  • https://uniontend.com/userfiles/files/rawegesu.pdfIn PDF document text
  • http://wwm-quanta.com/upload/files/gemomid.pdfIn PDF document text
  • http://boschvietnam.vn/files/usersfiles/files/kizixi.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4ca2ad4ea---koxolelimig.pdfIn PDF document text
  • http://wakesup.org/userfiles/file/sifexusofe.pdfIn PDF document text
  • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/frlqqifilsosolspaq54kfnfh4/22006053511.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/19859bb63db861879d07546acea90522/jakoxonebetukade.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160cef98a12792---57944697866.pdfIn PDF document text
  • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/2735d3275069d3dd13876fcbec26c574/rowuve.pdfIn PDF document text
  • https://edu-mate.kr/_UploadFile/Images/file/342101390.pdfIn PDF document text
  • http://giasuthanhdat.vn/Images_upload/files/69539063551.pdfIn PDF document text
  • https://chetanaus.org/bheru/uploadfiles/file/93120238398.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=surface+area+and+volume+of+rectangular+pyramid+worksheetPDF 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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