Malicious PDF — malware analysis report

Heuristics 5

• 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://crewmak.ru/uplcv?utm_term=importance+of+instructional+materials+in+teaching+pdf PDF link annotation

  • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/ulbejfsqdompjelkoih9imvq6e/91208520266.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4822bca391---moxosexabepigub.pdfIn PDF document text
  • https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/5cf7b690f5d5ec0c5d67b34df3090e10/kebumoma.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/9696699954.pdfIn PDF document text
  • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/5jfibdf44b38hb079f8j1o13m5/kawavinom.pdfIn PDF document text
  • https://brawlcall.com/ckfinder/userfiles/files/kovure.pdfIn PDF document text
  • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/lcm6tq7cvnde787jfb2oj3qcve/misagoteravi.pdfIn PDF document text
  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/uqpmrp479lh8ni13dgko909mm4/gapimabozevaxazin.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8256a8a964---tizomiladunalimanareku.pdfIn PDF document text
  • https://vayoto.vn/userfiles/file/5862380552.pdfIn PDF document text
  • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/62cbeaf056f2ccee2fcb50cc31fa9c99/kowir.pdfIn PDF document text
  • https://deniz-sogutma.org/img/userfiles/file/91511887206.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160809a2e1fad1---44721777204.pdfIn PDF document text
  • http://inventory-acepipe.com/images/uploads/files/85689651595.pdfIn PDF document text
  • https://www.vpn-solutions.com.pe/ckfinder/userfiles/files/gipukilifelakovevevilito.pdfIn PDF document text
  • http://kartinatv.org/uploads/files/miborewogalukutobe.pdfIn PDF document text
  • http://adimhukuk.com/resimler/files/35941224421.pdfIn PDF document text
  • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a72a390ac0b---nuxavebolepoforosuvag.pdfIn PDF document text
  • http://fantasymusic.it/userfiles/files/13297707121.pdfIn PDF document text
  • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4ade9c647---nifuguzevovibutugepexetoz.pdfIn PDF document text
  • http://windowsplusllc.com/ckfinder/userfiles/files/pasabovudovu.pdfIn PDF document text
  • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae48e55cae2---45066139091.pdfIn PDF document text
  • http://saconsultancy.com/userfiles/file/84989689758.pdfIn PDF document text
  • http://ldksolar-officialliquidation.com/userfiles/files/5270783527.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/caf96a387f7394f356f10e07ddfed7fd/44145539811.pdfIn PDF document text
  • 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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