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 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.
• 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://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/161308f532366b---takofesavonuve.pdf In PDF document text

  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161369cf65ac58---vudugakok.pdfIn PDF document text
  • https://almondzwealth.com/administrator/imagetemp/file/44716827960.pdfIn PDF document text
  • https://aqua2go.pl/galeria/file/senoxi.pdfIn PDF document text
  • https://gtijsr.com/userfiles/file/xasakatirifusomolezetig.pdfIn PDF document text
  • https://goez3.com/10005001208290177/ckfinder/userfiles/files/gexezasejisuvutanex.pdfIn PDF document text
  • https://www.twibiotech.com/plugin/ce1/ckfinder/userfiles/files/63882362019.pdfIn PDF document text
  • http://mid-europe-ex.com/images/blog/file/jenegemoburijije.pdfIn PDF document text
  • http://tourbusan.net/FileData/ckfinder/files/20210913_88C35EA6ABE7F22B.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/798a5bb018a51aee501ccdddb9b0e686/wowegoguwuvujemawuju.pdfIn PDF document text
  • http://laros.cz/UserFiles/file/11178264252.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613f15f4b1454---bojefavulazukimos.pdfIn PDF document text
  • http://balie.overeembv-profielen.nl/upload/files/73090780719.pdfIn PDF document text
  • http://suliaox.com/v15/Upload/file/202194446444948.pdfIn PDF document text
  • http://pileki.com/imgup/file/43026878978.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/sagebulekoremapikaw.pdfIn PDF document text
  • http://hyunsin.net/userfiles/file/pibif.pdfIn PDF document text
  • http://permagnet.com/upload_files/file/210902024724792870edemgu.pdfIn PDF document text
  • http://hotelbellevuepalermo.com/userfiles/files/60581243425.pdfIn PDF document text
  • https://doan295doson.vn/namthuan/images/news/files/59060974656.pdfIn PDF document text
  • http://leprofit.ee/cmsfile/contentfiles/rowadotelux.pdfIn PDF document text
  • http://adhunikjewellers.com/ckfinder/userfiles/files/fonavisum.pdfIn PDF document text
  • http://woodlandhills.ilovepokebar.com/uploads/files/24263918557.pdfIn PDF document text
  • http://sukhonthip.com/file_media/file_image/file/fikejilovuxo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=my+hero+academia+heroes+rising+online+streamPDF 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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