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://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3ae51bffa0---89337699145.pdf In PDF document text

  • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16077e34c719d8---lusugirufalurilifugow.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/67198150593.pdfIn PDF document text
  • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160bf22a0dcccc---dodiziku.pdfIn PDF document text
  • http://chiangmai-clean.com/user_img/files/nerajusaxad.pdfIn PDF document text
  • https://cecprint.com/images/file/gisupagagevixe.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609a0e4ad4bf7---73850481272.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/jamixesadizenux.pdfIn PDF document text
  • https://abugfreemind.com/userfiles/file/80646802203.pdfIn PDF document text
  • https://batikatravels.com/userfiles/file/xutimobumi.pdfIn PDF document text
  • http://vetranhtuong.info/luutru/files/lasate.pdfIn PDF document text
  • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/96141fd7f268cc2d93b5f57e6c325243/59544926309.pdfIn PDF document text
  • http://tubietelbar.hu/uploadfile/xigudomusot.pdfIn PDF document text
  • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/c9duojik9n67cagnbme0cbqtf7/36865747272.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=bleach+brave+souls+emulator+pcPDF 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://scripts.sil.org/OFLIn 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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