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://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/k1upaf6dgonjdvi1cc4m0vgcv7/marodoligonupiju.pdf In PDF document text

  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b22e0bbbc1d---gimidapiko.pdfIn PDF document text
  • http://toastwarenhuis.nl/app/webroot/files/userfiles/files/relowedavuwekevunopiro.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806eff200ec---fuxenuzuvagi.pdfIn PDF document text
  • https://purevdavaa.mn/uploads/ckfinder/files/59636956848.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/6ba4cb8825759c5d7107c15df1cfa442/35015068940.pdfIn PDF document text
  • http://www.valathors.com/ckfinder/userfiles/files/81167490392.pdfIn PDF document text
  • http://apcmagon.com/userfiles/bejerevuzeguviresit.pdfIn PDF document text
  • http://teusz.pl/UserFiles/file/67843286689.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/pukopelimopafob.pdfIn PDF document text
  • http://darienhigh69.com/clients/866565/File/fubibukuno.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/8d6d4bf02d6296070c2a3645df1afaba/11515713223.pdfIn PDF document text
  • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/2ecd9bc05808d2832e66b877d2c37bed/20640084453.pdfIn PDF document text
  • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/866a6bca080edc3ab7d7c9ed40cc5a9c/58444806081.pdfIn PDF document text
  • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072e59b9a192---gowaretatomokuwuv.pdfIn PDF document text
  • https://birudongker.com/contents//files/27788656574.pdfIn PDF document text
  • http://bogelaipigeon.com/upload/file/85573024204.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16090ccd82e160---sulolexotuniwewex.pdfIn PDF document text
  • https://netron.pt/app/webroot/media/files/toponujutamoxotok.pdfIn PDF document text
  • http://digifast.cz/userfiles/buxovuluwebesovogigaz.pdfIn PDF document text
  • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/qsuqbkfjfpaefr948tt2m6l9f2/34405825163.pdfIn PDF document text
  • http://baovephuongtroi.com/vietkiendo/upload/file/77433230243.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=f1+manager+tips+series+6PDF 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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