Malicious PDF — malware analysis report

Heuristics 6

• 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://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/te9n2h9hsi9ggmecgrder97c83/rixubowox.pdf In PDF document text

  • https://binarbaidtrading.com/public_html/userfiles/file/81159301148.pdfIn PDF document text
  • https://adikketiga.com/contents//files/nigimelum.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a2da4f752---lurige.pdfIn PDF document text
  • https://eobliecky.sk/userfiles/file/67872874493.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fe763415f---pivojatugud.pdfIn PDF document text
  • http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/rulekozutolupasabuledazas.pdfIn PDF document text
  • http://kolasinprevoz.rs/slike/files/xesotawaxesefi.pdfIn PDF document text
  • http://prestizhstroycompany.ru/SITE/files/editor/file/83069610444.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078dc9a44e20---787177486.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/16072c20af3dd2---kelidasitisakurigare.pdfIn PDF document text
  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/a14d4e9d86c41dae48e730af40a8fe1b/fagamodifizazixovojudini.pdfIn PDF document text
  • https://bem-sa.com/img/file/35152576684.pdfIn PDF document text
  • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607022ebebaf8---felosukudojurajejeruza.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a803104056f---92556004980.pdfIn PDF document text
  • http://krevue.cz/UserFiles/File/60978272378.pdfIn PDF document text
  • https://lncl.org/ckfinder/userfiles/files/77080461884.pdfIn PDF document text
  • https://xlspandoek.nl/userfiles/file/22790213206.pdfIn PDF document text
  • http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a77a67937d2---xuxawetefegowebiwajitad.pdfIn PDF document text
  • http://henca.com/files/details/file/97597977396.pdfIn PDF document text
  • http://blessingsngo.in/userfiles/files/sinomopasiwilufuvani.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a34eee50812---tusokekafojipulapozi.pdfIn PDF document text
  • https://calendarsunrooms.com/userfiles/files/84921625430.pdfIn PDF document text
  • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608add86bd6ea---25827035086.pdfIn PDF document text
  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1b5f4f90a---17128109731.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=world+most+petroleum+countryPDF 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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