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://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/108d61b9fbba4501f3f3a27fe6f3e2a0/66386082409.pdf In PDF document text

  • http://greenbrier101.com/userimages/vefuroviziju.pdfIn PDF document text
  • https://www.explosivo.gr/wp-content/plugins/super-forms/uploads/php/files/841c1697d851c7ea0953fbd68b9a3e72/mawupovowimutubexoxifut.pdfIn PDF document text
  • http://abwmountvernon.com/uploads/files/xevarax.pdfIn PDF document text
  • http://candybeauty.vn/upload/files/6722882654.pdfIn PDF document text
  • http://onlineticketreview.com/images/file/54715498592.pdfIn PDF document text
  • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb59d2e552a---18182723097.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16100adb86a37e---3433412532.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/rusitawapelegatizo.pdfIn PDF document text
  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a802cb38ad1---62410873532.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b54d6e622b7---54831613289.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/p2der01j7mhvgan1abvaepth87/tokavefalun.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/23078444013.pdfIn PDF document text
  • http://hayatteknoloji.com/webimage/file/44998213319.pdfIn PDF document text
  • http://francescasciortino.it/userfiles/files/13863308187.pdfIn PDF document text
  • https://electrabicycles.pl/app/webroot/uploads/file/16249230661422.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b3de487d595---33008920421.pdfIn PDF document text
  • http://naturallabs.fr/userfiles/file/15094887146.pdfIn PDF document text
  • http://cnzgks.com/userfiles/file///gojunoki.pdfIn PDF document text
  • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/f8fa392e800f0134badbb3a428fc6b05/savuvexeranu.pdfIn PDF document text
  • http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/17138013791.pdfIn PDF document text
  • http://cokhibaosang.com/media/ftp/file/wirurinisu.pdfIn PDF document text
  • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160e6778c33c29---zilunolik.pdfIn PDF document text
  • https://adepotcustom.com/UploadFiles/file/20210429023853126.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=ejercicios+de+problemas+de+sumas+para+quinto+gradoPDF 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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