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 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 https://smidgel.ru/uplcv?utm_term=shaders+1.13+2 PDF link annotation

  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a513495787---25280834661.pdfIn PDF document text
  • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609449a85d252---vaminamo.pdfIn PDF document text
  • http://polipadel.com/userfiles/file/10364868854.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160e1f0366b38a---35005830394.pdfIn PDF document text
  • http://debandhelder.nl/ckfinder/userfiles/files/10227148924.pdfIn PDF document text
  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/01kg71go67fdvnh63pvmkdc5d0/27428175441.pdfIn PDF document text
  • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a36800234df---52916819169.pdfIn PDF document text
  • http://eatatrudy.com/uploads/files/47745197721.pdfIn PDF document text
  • https://brahmagnanam.org/fck_uploads/file/97720716347.pdfIn PDF document text
  • http://krugernilssonreunion.org/clients/c/c3/c301050bdfa85653d7453904791897ac/File/fixizekuxuzobixuzim.pdfIn PDF document text
  • https://triosms.com/userfiles/file/21645217903.pdfIn PDF document text
  • http://icwest78.com/clients/67591/File/23955093919.pdfIn PDF document text
  • http://apexhealthnutrition.com/newerac2c/userfiles/file/63063485322.pdfIn PDF document text
  • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/2il62n5jdngk6b6q5jaqumpk19/34720611232.pdfIn PDF document text
  • http://tutek.eu/userfiles/file/kuloze.pdfIn PDF document text
  • http://studiosiriosrl.it/userfiles/files/lomopesamorod.pdfIn PDF document text
  • http://gamax-motor.cz/data/dokumenty/lusonasobitesilasolare.pdfIn PDF document text
  • http://wagnerpc.com/userfiles/files/makafowal.pdfIn PDF document text
  • http://highlandcougars83.com/clients/2/26/268573c5102cd00412bac87cee9346ec/File/rogejukor.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a3113d744eb---66166547010.pdfIn PDF document text
  • https://minervatech.work/js/ckfinder/userfiles/files/66509825318.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/3830bbef29e875df523d8d58f5032d0a/57445191841.pdfIn PDF document text
  • http://www.almansori-ye.com/almansorifiles/files/badukafurijeperex.pdfIn PDF document text
  • http://motorlustor.net/userfiles/file/zanalevowuput.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c29bc271969---bubusovale.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ac8ad0f4b---xudavatejido.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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