Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://archism.ru/uplcv?utm_term=insight+student%27s+book+answers PDF link annotation

  • http://schoonhovensvrouwenkoor.nl/ckfinder/userfiles/files/xidiwujebuzogedokupok.pdfIn PDF document text
  • http://pogotowienaukowe.com/Upload/file/33863751819.pdfIn PDF document text
  • http://www.bc-arman.kz/ckfinder/userfiles/files/wijadororerakelukokusam.pdfIn PDF document text
  • http://lindendirect.com/ckfinder/userfiles/files/lotidumugufi.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/e4f9349ddd69fc855f7471a1837277c5/detumokaramipezekiju.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/1a6cd1a491d1bf6fc326c424f2b206ca/30875600791.pdfIn PDF document text
  • http://dainichiji.com/upload_ckr/files/6475037839.pdfIn PDF document text
  • http://sahrugs.com/userfiles/file/30099932245.pdfIn PDF document text
  • https://aymsoft.us/aym_image/files/21796089779.pdfIn PDF document text
  • http://tea-ra.com/user_data/upload/save_image/files/xines.pdfIn PDF document text
  • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/gosutela.pdfIn PDF document text
  • http://swaminarayangm.org/userfiles/file/57988053381.pdfIn PDF document text
  • http://haki.vn/uploads/files/bemititiv.pdfIn PDF document text
  • https://leuphuotcamap.com/uploads/image/files/8577639266.pdfIn PDF document text
  • https://www.hippocratio.gr/ckfinder/userfiles/files/65918324243.pdfIn PDF document text
  • https://abcoegypt.com/userfiles/files/244625525.pdfIn PDF document text
  • http://modelseafarm.com/kweb/ckfinder/userfiles/files/32170838281.pdfIn PDF document text
  • http://cambresisemploi.fr/ckfinder/userfiles/files/59822205724.pdfIn PDF document text
  • http://keemunblacktea.cn/uploads/file/151751271157.pdfIn PDF document text
  • https://narellesastro.com/userfiles/files/kovegiketexaged.pdfIn PDF document text
  • http://rentaruedas.com/files/others/151746598.pdfIn PDF document text
  • http://bacsiha.com/public/ckfinder/userfiles/files/medovosupawo.pdfIn PDF document text
  • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613e307be5a1b---fituda.pdfIn PDF document text
  • http://ventss.ru/userfiles/files/gugevosoxiredovusegij.pdfIn PDF document text
  • http://www.awakohchang.com/image/upload/File/838272803.pdfIn PDF document text
  • http://niezapominajkowo.eu/userfiles/file/47638034188.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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