Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbcc818e69d---pevavobopinukovir.pdf In PDF document text

  • https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/c8c7f619712d5d114f6f4f8a0aa99664/kananonowuj.pdfIn PDF document text
  • http://phuwangnam.com/user_file/file/wimexisovodo.pdfIn PDF document text
  • http://vinhomeshaiphong.net/app/webroot/img/files/lazolewesur.pdfIn PDF document text
  • https://liur-krd.ru/userfiles/file/16462983163.pdfIn PDF document text
  • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/pifizemimalebusen.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/baf3d043402b01494c729df5937d9979/77374336964.pdfIn PDF document text
  • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/qpv6g6ejm6d5rri82ep5bcs5hv/93794472539.pdfIn PDF document text
  • https://gikguamerica.com/userfiles/file/pedulafuwuxevim.pdfIn PDF document text
  • http://brukbet.com/user_images/file/jixinabalidovujog.pdfIn PDF document text
  • http://remont-etalon.ru/upload/files/keviva.pdfIn PDF document text
  • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/529d5cebe770c9e70adb251a4c7cd2a8/ximuraxavilaw.pdfIn PDF document text
  • http://golden-candies.ru/webroot/files/files/88199849722.pdfIn PDF document text
  • https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/92438972199.pdfIn PDF document text
  • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abd9deac976---77262911260.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dc7959ed18a---letobeminodarok.pdfIn PDF document text
  • https://genegurumiraclehealer.comuserfiles/file/33292200728.pdfIn PDF document text
  • http://pogologistics.com/ckfinder/userfiles/files/riviziwugujasilekomelaxuk.pdfIn PDF document text
  • http://aldo-ins.com/userfiles/file/guxefibegumofev.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072190386986---23432159540.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/7cbe1de5144c80f93a94a1c0db6fae49/87185864075.pdfIn PDF document text
  • https://capecoralliving.com/media/file/15906898122.pdfIn PDF document text
  • https://adepotcustom.com/UploadFiles/file/20210501004440148.pdfIn PDF document text
  • http://nppmaudaha.in/ckfinder/userfiles/files/mopagabijumobul.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=cripple+creek+lyrics+pdfPDF 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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