Malicious PDF — malware analysis report

Heuristics 7

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://oniceh.ru/uplcv?utm_term=addition+and+subtraction+of+fractions+grade+10

  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160833ceea3ba0---50227170019.pdf
  • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0fa441f5d---46544817464.pdf
  • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607d632666d79---dejexibuvosawilejotopigi.pdf
  • https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/783cfcff1b2f12c1a0ba051416f47e33/lugiv.pdf
  • http://kondicionery-lubertsy.ru/upload_picture/file/gijimogupezupolujopu.pdf
  • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/53c5d4d60196a1d9a11c7f4f0332a208/38766917644.pdf
  • http://trendybiz.in/usersfiles/file/kogoza.pdf
  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/rl2hda526happtm5h00jrfhf0v/70885917101.pdf
  • https://dialogueinpraxis.net/files/docs/28437635131.pdf
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16071da08e1d8e---64256901007.pdf
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/e960f90f032c209a727b7793071bbd63/69584802078.pdf
  • http://dioceseofniranam.org/userfiles/file/dozonibusobixe.pdf
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/177ac3b480db4299ff0883b43762f099/60981958478.pdf
  • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080990d70aad---xusibexipodugoxekom.pdf
  • https://ambulatorioveterinariosismondi.eu/file/movorinuze.pdf
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a58a1ed1df---kamutenatapijanem.pdf
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160aa51c97d745---61171579073.pdf
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/bf22mdiskottv1slr1qb6539e7/78571988375.pdf
  • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/a1956575ffac49ad7d5ea7b967aece3b/fuvitapu.pdf
  • http://hainescentreasia.com/images/file/dotadinebaxoz.pdf
  • https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/dc696aed621c4b626ec201a93dbf673c/75761253545.pdf
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc8c88bef3f---xefutomipukivuseromixot.pdf
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0773071a4---mekagipewiginodovig.pdf
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acbb038cee---sigoxevumadiki.pdf
  • http://hzdsbg.com/uploadfile/1620551038.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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