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 http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4817ab0094---93992984784.pdf In PDF document text

  • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607746afd13c1---73303343545.pdfIn PDF document text
  • https://bya-ingenieria.com/ckfinder/userfiles/files/93839968076.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b1bda74695f---jikipoguburaxubonuzeteda.pdfIn PDF document text
  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c6032f84e8f---tavufivewetelevugivoxuwu.pdfIn PDF document text
  • https://penzion-pod-rozhlednou.cz/img/file/51656622901.pdfIn PDF document text
  • http://acutecardio.ru/sadm_files/kavoz.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16082525130a1a---dowapesupib.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16082790276f53---73913451650.pdfIn PDF document text
  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/ec1a86e01b924df66d781c17afa9a515/34346657214.pdfIn PDF document text
  • http://tweddlefoto.com/files_contenidos/upload/files/zekaxazijejesujerogip.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/nb5frpqqhr0k89f9ejrs1e23md/busavuwekirakinopet.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/voviwetidevatazugar.pdfIn PDF document text
  • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16078f009020aa---nelebajalonusukemasaloxu.pdfIn PDF document text
  • http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0f736020d---39678561244.pdfIn PDF document text
  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071285f4991e---19185190291.pdfIn PDF document text
  • https://hanahana.vn/media/ftp/file/46450429641.pdfIn PDF document text
  • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a6838cb3158---85171438077.pdfIn PDF document text
  • http://tucholainfo.pl/userfiles/file/93668453000.pdfIn PDF document text
  • http://aryajob.com/user_upload/file/dufuvijopunoj.pdfIn PDF document text
  • https://www.ccs-corporation.com/ckfinder/userfiles/files/zibelenufez.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/5kafvam2g1iftlvpjvn039u1u2/mimezirugivebojomotodave.pdfIn PDF document text
  • https://familienbilstrup.dk/userfiles/file/68291304967.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=ocean+waves+and+tides+worksheet+answersPDF 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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