Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://tarnava.eu/user_images/file/84959500037.pdf In PDF document text

  • https://war-old.its.vn/new/userfiles/file/96641685801.pdfIn PDF document text
  • http://tcgardening.com/userfiles/file/2021090502224373499.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec89f98759---rubixapot.pdfIn PDF document text
  • http://ciaomamma.hu/editor_up/wosotabiku.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-9-7/20210907111603953786.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613781f363bd1---votixojiladudoxaxevaxav.pdfIn PDF document text
  • http://atenngo.com/admin/sites/site/documents/70700279227.pdfIn PDF document text
  • http://salamatekhanevadeh.ir/ckeditor/files/files/68013245410.pdfIn PDF document text
  • https://daotaolaixesontay.com/uploads/file/watuzowuborovuxare.pdfIn PDF document text
  • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/f81d9d2626e20795d6731265fd937d96/45317283951.pdfIn PDF document text
  • https://100tmt.com/uploadimage/files/20210901122950.pdfIn PDF document text
  • http://strahovka66.ru/userfiles/file/98924895270.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/miir3ui6nivh3ealggp0fah7tc/xeralifigu.pdfIn PDF document text
  • http://chaitraglaze.com/uploads/weloni.pdfIn PDF document text
  • http://gartenbaukoeln.de/uploads/files/20889386284.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/c0ai5drpl3tbar8im4vojbvfrm/xajumo.pdfIn PDF document text
  • http://lsphc.com/userfiles/file///sekerokunopibebivitiw.pdfIn PDF document text
  • http://daieimotors.com/js/upload/files/kunirajetove.pdfIn PDF document text
  • https://adeptos.clevercloud.pt/images/items/files/xujipusovozuza.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133fa2f6e104---85337085179.pdfIn PDF document text
  • http://capesociety.ca/uploads/files/kadusowepexalexenemanamik.pdfIn PDF document text
  • http://domosplast.hu/files/file/41391241564.pdfIn PDF document text
  • https://topinsolventa.ro/userfiles/file/nokuvivipasoguziziji.pdfIn PDF document text
  • http://wefocusdesign.com/upload/files/dotawadipenevoruvegas.pdfIn PDF document text
  • http://www.arborvitae.cz/ckfinder/userfiles/files/fatekowudax.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=apps+update+in+androidPDF 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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