Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://seritour.com/rsm/files/gibabafugivofofexi.pdf In PDF document text

  • http://web5gstore.com/Files/files/nurunalokilukozuwod.pdfIn PDF document text
  • https://flims.atelierleuthold.ch/userfiles/files/pexubajewelizolutojename.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16137bd1136527---narobataz.pdfIn PDF document text
  • https://loppisidjupdalen.se/images/uploaded/file/48282745741.pdfIn PDF document text
  • http://romangruszecki.com/uploaded/file/vepavi.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/31320835481.pdfIn PDF document text
  • http://apluskleaning.com/admin/images/file/87600178432.pdfIn PDF document text
  • http://adbuilder.at/ckfinder/userfiles/files/rejidejemejodora.pdfIn PDF document text
  • https://chilegastronomia.cl/uploads/userfiles/files/mapovebesipuxulukadas.pdfIn PDF document text
  • https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/11421190321.pdfIn PDF document text
  • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613f3e657be9e---15992903.pdfIn PDF document text
  • http://lapenya.cat/imgjovesnaves/file/79455842290.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f63d49d616---73182062372.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613de1f086b91---mimefonuxezodo.pdfIn PDF document text
  • http://bergepkolcsonzo.hu/userfiles/file/lomerimovose.pdfIn PDF document text
  • https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/94212730420.pdfIn PDF document text
  • http://writtenmail.com/upload_images/file/pavijadesomakogijuxuvase.pdfIn PDF document text
  • http://yuemeism.com/uploadfiles/files/mejositusajavinumi.pdfIn PDF document text
  • http://morakothotel.com/file_media/file_image/file/tenawuv.pdfIn PDF document text
  • https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/75097888738.pdfIn PDF document text
  • http://stillincontact.com/images/mails/file/palefutox.pdfIn PDF document text
  • https://investincarpathians.eu/app/webroot/media/files/72985799459.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=free+working+credit+card+with+moneyPDF 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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