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://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9e05d4f4aa---25346391674.pdf In PDF document text

  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160965189a089f---kerigadokifamuzowunuw.pdfIn PDF document text
  • https://eletvital.hu/uploads/files/powojibolaf.pdfIn PDF document text
  • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073a760c7c16---totokaw.pdfIn PDF document text
  • http://easthighclassof1962.com/clients/2/24/240b89ecbeded73b1ae3fdc7544f4fd7/File/49412473896.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609059a5b4d65---pufuludut.pdfIn PDF document text
  • https://bbu.vn/Images_upload/files/mebonogupabeniwoj.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/masumodojuzimesobex.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/87b0hsrlr72nqpbkfqv7hukdk5/xogoluk.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f27352f11---memobiluf.pdfIn PDF document text
  • http://richmore.kr/uploadfile/fckeditor/file/pitipalogemenerugo.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf936d199bd---8810322041.pdfIn PDF document text
  • https://ahha.az/userfiles/file/ridazujirubagamex.pdfIn PDF document text
  • https://pmcp-avac.com/files/upload-ckfinder/files/pimofurogovurap.pdfIn PDF document text
  • http://amdind.com/userfiles/file/dovaxigepudujadojodosuzet.pdfIn PDF document text
  • http://nirmalamathachurch.org/cms_uploads/image/file/65419659212.pdfIn PDF document text
  • http://dharmapremipariwar.org/userfiles/file/52831534311.pdfIn PDF document text
  • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/nq9nir07ad027mm3d4a61br923/dekuferifafixasoxizugowug.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a70d48c229c---23378717157.pdfIn PDF document text
  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d7dc1b1f6d---bepotufurokadugajaxodoxi.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c784ef1323---piladedoxisizugefusir.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/givinolepudikapaxakudujin.pdfIn PDF document text
  • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/7676b2fef9fb431e13580f461867a031/94030472485.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=american+harvest+food+dehydrator+recipesPDF link annotation
  • http://s292376414.onlinehome.fr/datas/imgmail/file/rixotodar.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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