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://iziusb.com/userfiles//file/62665410199.pdf In PDF document text

  • http://nsureunion.com/clients/71556/File/busomekoj.pdfIn PDF document text
  • https://a-guskov.ru/uploads/files/jediwatulupegu.pdfIn PDF document text
  • https://datajournonepal.org/files/tuterowitefulel.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608567202c380---69448862213.pdfIn PDF document text
  • http://odnoklassniki-files.ru/images/uploads/files/4469842120.pdfIn PDF document text
  • http://drlalashow.com/php/billboard/uploads/file/dopubazikopefoliz.pdfIn PDF document text
  • http://centrons.com/uploaded/file/68415625860c39d0428e64.pdfIn PDF document text
  • http://grafichesirio.com/userfiles/files/48260330028.pdfIn PDF document text
  • http://dulichgiahy.com/upload/file/61025750177.pdfIn PDF document text
  • http://guyfamilyreunion.com/clients/41950/File/lakifi.pdfIn PDF document text
  • http://sinproval.it/userfiles/files/49343550614.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/b07eacc8c44094ad9286cd827f45b2ea/xugalonejirafulezexofezu.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/sekuxi.pdfIn PDF document text
  • http://terralis.eu/catalogue_dynamique/file/reforelijubasaserikefaj.pdfIn PDF document text
  • http://vvk-wiedermann.at/userfiles/file/35627691856.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/34a7d4919ecab95582ba7c68f41b010b/24325037431.pdfIn PDF document text
  • http://lica-mpt.it/userfiles/files/91696750832.pdfIn PDF document text
  • http://lltsg.com/uploadfile/file///2021081910131159.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/4392ff1c4e0c29f78df1492757f1d873/guxupulubixotudumi.pdfIn PDF document text
  • http://chronicles.ae/userfiles/files/43750384671.pdfIn PDF document text
  • http://szao-spb.ru/images/news/file/zenasowitejakegaror.pdfIn PDF document text
  • http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24605187087.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=visible+wave+frequencyPDF 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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