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 https://drafthe.ru/uplcv?utm_term=calcinosis+palm+of+hand PDF link annotation

  • https://pasarantogel.com/contents//files/zasetez.pdfIn PDF document text
  • http://goldmustang.com/files/files/29897588036.pdfIn PDF document text
  • http://thaiboxes.com/piceditor/file/48932007491.pdfIn PDF document text
  • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/9fa6ed6b502e78d262975d1db18e6311/2354821731.pdfIn PDF document text
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/i88n0pgp1l8vnfd2aibsej3io4/3176726481.pdfIn PDF document text
  • http://tea-ra.com/user_data/upload/save_image/files/98931768023.pdfIn PDF document text
  • http://almawred-sy.com/files/adminfiles/files/mamofutoxere.pdfIn PDF document text
  • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/0c1ad3fc0e13a0ba9a1e02a2f0f7ccc1/mazedesud.pdfIn PDF document text
  • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ba6d4322fe9---17970884142.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607dece98c254---78630486672.pdfIn PDF document text
  • http://renovator.cz/files/file/23910353372.pdfIn PDF document text
  • http://bonfiremadigan.com/uploads/fckeditor/file/kukuxemusufagesimixefu.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/61a6041931139962466fee8964188efd/temusanipavejosutijox.pdfIn PDF document text
  • http://richmore.kr/uploadfile/fckeditor/file/rijad.pdfIn PDF document text
  • http://pm-property.pl/userfiles/file/4994513436.pdfIn PDF document text
  • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/077b5ef9ff9f90eca3a89ecd2109dc7e/dukujasel.pdfIn PDF document text
  • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad814bc7611---35995277009.pdfIn PDF document text
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/7mshlrqjf69knvc6bo6ium6ntr/64089236184.pdfIn PDF document text
  • http://mitcostruttori.it/userfiles/files/11859367419.pdfIn PDF document text
  • http://podlahyadvere.sk/editor_uploads/system/files/40225867763.pdfIn PDF document text
  • http://mdfgiare.com/upload/files/gifivojarejujorotuzeleta.pdfIn PDF document text
  • http://apexhealthnutrition.com/newerac2c/userfiles/file/39084432627.pdfIn PDF document text
  • https://tecnicadovolante.com/images/file/wodamexetoloxatafa.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160833caac3bd1---xekozulimadata.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/fazidokezaze.pdfIn PDF document text
  • https://mabuksusu.com/contents/files/87625259244.pdfIn PDF document text
  • https://web.archive.org/web/20171024100421/http://www.sclero.org:80/scleroderIn 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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