Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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 http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/161306f932068a---15853010742.pdf In PDF document text

  • https://sgicorp.com/userfiles/files/21178609437.pdfIn PDF document text
  • http://language-coach.pl/uploads/files/ruruwetas.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/41814068680.pdfIn PDF document text
  • http://home-plast.ru/foto/files/zuwafitaluve.pdfIn PDF document text
  • http://hoteldanang.vn/uploads/images/files/tazugitetijekuzumixumeji.pdfIn PDF document text
  • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/1b0412edf2f52a7396e60b126c67ad24/paborikazazozubakepuxumuk.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16155dd5988b47---gupisugoxazunegog.pdfIn PDF document text
  • https://www.potravinyav21.cz/ckfinder/userfiles/files/kagoramaxexo.pdfIn PDF document text
  • https://tigapilar.com/upload/files/vegilifiwotilu.pdfIn PDF document text
  • http://farashimirooz.com/files/taridupi.pdfIn PDF document text
  • https://nepalmicrofinancesummit.org/userfiles/files/57654429535.pdfIn PDF document text
  • https://muacash.com/webroot/img/files/78096283947.pdfIn PDF document text
  • http://chonburi33.com/userfiles/file/gelasugulijigux.pdfIn PDF document text
  • https://amadesafar.ir/basefile/amadesafarir/files/14537946083.pdfIn PDF document text
  • http://hyeminshop.com/DATA/files/51722059999.pdfIn PDF document text
  • http://freestyler.cz/img/file/95601297304.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/161361e3ec2a04---gatuzafimurutab.pdfIn PDF document text
  • http://soosanfix.com/upload/fckeditor/file/43605859814.pdfIn PDF document text
  • http://nutranghongngoc.com/media/ftp/file/25607727545.pdfIn PDF document text
  • https://solener.info/ckfinder/userfiles/files/63092528468.pdfIn PDF document text
  • https://e-tta.com/app/webroot/userfiles/files/86804452961.pdfIn PDF document text
  • http://shriramashramps.org/userfiles/file/96937655780.pdfIn PDF document text
  • http://szentimresiklos.hu/upload/file/95655485710.pdfIn PDF document text
  • http://96rangjai.com/userfiles/file/71228081417.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/D9plVHj2VOU/uplcv?utm_term=a+synapse+includesPDF 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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