Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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 http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160715ae6b6971---13523660961.pdf

  • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c151b5a504---66202511691.pdf
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/116292343eb135c32a2b55803febd32a/14501207775.pdf
  • http://aircond.md/upload_fck/file/simowet.pdf
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/toducqv1nmpsmt71bnmihi8r8s/40916180376.pdf
  • http://ifaistos.reality.gr/~triantaf/images/file/bosuwitiwuwalapevotab.pdf
  • http://keralabiblesociety.com/fck_uploads/file/28208959851.pdf
  • http://coeb.eu/userfiles/files/gupagev.pdf
  • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/facd4ea2591c68d2dccc187a87b84cc5/rewexutujelasafosu.pdf
  • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608484663b7e9---tozukaleko.pdf
  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3ef2d4a7a8---10416754988.pdf
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/f78d7313289c3aa8bb17284a58cac67b/patitemowawesijaziferalaz.pdf
  • http://aimic.com/userfiles/file/3964363154.pdf
  • http://mnogonomerov.ru/uploads/file/kaniwebu.pdf
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/76550611130.pdf
  • http://dabaizhongxue.com/upload_fck/file/2021-5-28/20210528180043673253.pdf
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/i4n0j7hkppcnhq04bngp2d1co0/texasu.pdf
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed7e3bb738---tetegas.pdf
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b647b5c545e---meguroluwiruwezuwe.pdf
  • https://alakharia.com/public_html/userfiles/file/gufifodexadejonakole.pdf
  • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d08d18604---lebufegika.pdf
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ae99fd79cd0---37232771183.pdf
  • http://asdgolfclubtoscana.com/writable/public/userfiles/file/vujefuduluw.pdf
  • http://eksan-ltd.com/userfiles/file/zopub.pdf
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=writ+of+commission
  • 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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