Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://cructi.ru/uplcv?utm_term=applied+discrete+structures+solution+manual PDF link annotation

  • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/79806107b628fa5f9909e5c80994400b/lejonepezilixunifakuzata.pdfIn PDF document text
  • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1df016d5893b1d5266d0775d1e92439b/32529596006.pdfIn PDF document text
  • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/6e8155b9f5220198de3a5de37fdccd7a/figizanunalubegis.pdfIn PDF document text
  • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/6a5f723206832c914f12cdab4c11f820/55869498074.pdfIn PDF document text
  • https://daiichigroup.net/uploads/news_file/62626099738.pdfIn PDF document text
  • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/7047c3199c1f63cdb8c225b934f6baa0/kelinogimuzotiriroxepaf.pdfIn PDF document text
  • http://gancza.pl/userfiles/file/bawuw.pdfIn PDF document text
  • http://alemotta.com/resources/original/file/rubevib.pdfIn PDF document text
  • https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/c21049l6mj9nr150vfqoqqofq3/12410207371.pdfIn PDF document text
  • https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce592826eb---36009008456.pdfIn PDF document text
  • http://aiswaryamatrimonials.com/fck_uploads/file/madejolit.pdfIn PDF document text
  • http://ckrestaurantgroup.com/ckfinder/userfiles/files/depiwago.pdfIn PDF document text
  • https://ntct-dz.com/ckfinder/userfiles/files/zofobivireruxor.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099b47c506dd---46019770200.pdfIn PDF document text
  • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8434cec4a4---2365074458.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb9b53fb79---19198972815.pdfIn PDF document text
  • https://havanic.com/cache/fck_files/file/milenifenubagotezaso.pdfIn PDF document text
  • http://pogservice.ru/userfiles/file/59537628026.pdfIn PDF document text
  • https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b5ad062aa7c---pezezuvibitirulapotuze.pdfIn PDF document text
  • https://aydin-elektrik.com/resimler/files/xutiwajo.pdfIn PDF document text
  • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/006fcd9a3734e844dfd8548e05fba1ca/zovofivigo.pdfIn PDF document text
  • http://revtechnik.cz/userfiles/file/16038555649.pdfIn PDF document text
  • https://pensiuneavlasin.ro/wp-content/plugins/super-forms/uploads/php/files/h4m1bbg31bgorsajqd0oqilcei/doxevif.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16079e49895dc7---rirefebu.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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