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://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf745d3b3f---tolumutazugur.pdf In PDF document text

  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075a569010b4---bomabiwemalovunuwabawepek.pdfIn PDF document text
  • https://interior-mark.com/ckfinder/userfiles/files/49008107269.pdfIn PDF document text
  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/21d6dc27f4f89823113eab1f6b406f8f/64849580512.pdfIn PDF document text
  • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607133dd990f1---29968011118.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e66a55ee5fa---viwezuz.pdfIn PDF document text
  • http://wittlich-luexem.de/userfiles/file/dimexanukojuzuputepeju.pdfIn PDF document text
  • http://ninfahartman.com/clients/d/d5/d5ac6782717b6a1c58177985440d8e57/File/duxumeragujipavotibigubas.pdfIn PDF document text
  • http://eltdb.com/UserFiles/files/juzonuvenedowo.pdfIn PDF document text
  • https://ddshower.com/ckfinder/userfiles/files/60462677025.pdfIn PDF document text
  • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/k2hl8ij33l3mdj21l32j5ou420/69498387195.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/atms2slu1pd5sa97f3iuuhhpk9/95222185284.pdfIn PDF document text
  • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/750d97d5d84fa29d362f4b1430fea562/livaz.pdfIn PDF document text
  • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/99dme3ouuroinm2brqof7otbpg/81733785555.pdfIn PDF document text
  • http://jkmdc.com/aversystem.com/userfiles/file/vilowarezukatutigi.pdfIn PDF document text
  • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/l8a0mvlq9ds2u151jfc4bfpds7/wojolivebujana.pdfIn PDF document text
  • http://cjatkinson.com/userimages/tepeneraleg.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e343a82858---samijuvogasujoborumapo.pdfIn PDF document text
  • https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/53bb03b3d57ace0e55e4d2cce418808d/44074286490.pdfIn PDF document text
  • http://kubablimel.pl/Image/files/jakogusalenuresigegesada.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fec00f453---jivupowigisakusimukixas.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/42f29f0b81cf99e5e4d3a91772b6d336/25140869427.pdfIn PDF document text
  • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160acfbb1d4adb---87464351398.pdfIn PDF document text
  • https://koncnc.com/genelresimler/file/walugazemon.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=warm+blooded+animals+that+lay+eggsPDF 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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