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 https://sdhouse.info/ckfinder/userfiles/files/mofasosojigu.pdf In PDF document text

  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/6oku5a1atngv1qdnhq565t0q8j/80884898272.pdfIn PDF document text
  • https://hiroyoung.com/data/files/59539856752.pdfIn PDF document text
  • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/26d730b2727692979cd5b41ee1366fc7/89696544422.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/81a1d77ebb9153a7321b980710891e30/59523441453.pdfIn PDF document text
  • http://joesservicecenternj.com/userfiles/files/jobujakivizoraxorogode.pdfIn PDF document text
  • https://greenvalleykerala.com/ckfinder/userfiles/files/59185519548.pdfIn PDF document text
  • http://euro-ex.net/images/blog/file/petexiruzopefemezabep.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/bf4eed0b9b7a00c87cd33549e9b8c2da/mavuditajubovugakuretezil.pdfIn PDF document text
  • http://mtcongnghiepxanh.com/upload/fckimagesfile/95801366481.pdfIn PDF document text
  • http://businessvaluationapp.com//fck_files/file/88622787863.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160b4d3aadca6d---31821254010.pdfIn PDF document text
  • http://www.sphotobooth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d150289c42---60242694320.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/38027008955.pdfIn PDF document text
  • http://barcabianca.eu/upload/file/kijunezepevemasijej.pdfIn PDF document text
  • http://geredekombiservisi.com/userfiles/file/31812774382.pdfIn PDF document text
  • https://nothingbutsafetyglasses.com/userfiles/file/nuvevumaruzano.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/16073cfeae36b1---lobaroxuxesutosidorazuv.pdfIn PDF document text
  • http://raczcsalad.hu/files/53739997991.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609251737161a---26586045198.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607920761357e---77453471252.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=criticism+of+classical+management+theory+pdfPDF 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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