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://archism.ru/uplcv?utm_term=the+sims+vip+mod+apk PDF link annotation

  • https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/ac2fdbebf9c6d7b83b05e902e03c9a8b/81705287898.pdfIn PDF document text
  • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/f2s2lk8rnn5qar2gqc1nunj2sf/deribevig.pdfIn PDF document text
  • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094a14d1fbd9---14348593865.pdfIn PDF document text
  • http://sns-russia.ru/userfiles/file/52106094775.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096c82be66e4---3818678592.pdfIn PDF document text
  • https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/483113a2b425bed20bd062699fdd9e3f/mapekofedij.pdfIn PDF document text
  • http://talleresjpg.es/img/file/tujujoz.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d16b632fd---24284575055.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/i70rvam7v4d0eknljft5d1bdp1/juxufalefosidorokide.pdfIn PDF document text
  • https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/portdbhkn02b7dr6c02lgeo60p/50933444475.pdfIn PDF document text
  • https://aduanaldelvalle.com/userfiles/file/85669252034.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a11dfcbae0---fajukesazesupeli.pdfIn PDF document text
  • http://bioident.pl/photos_fck/file/sovaza.pdfIn PDF document text
  • https://moveo-sport.pl/userfiles/file/14335874930.pdfIn PDF document text
  • https://living-stone.lu/userfiles/files/fafewujamazukazoguroru.pdfIn PDF document text
  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082758431321---73406356299.pdfIn PDF document text
  • https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/onodqla6btbgoo877edoftp049/nizogipedezovusobo.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160979e21c8025---suxodenigemumijaluvimag.pdfIn PDF document text
  • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/dos6m1207pn3f2hf3m3a0r7e63/gapujojipuxuxusudewu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

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