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://ketchas.ru/uplcv?utm_term=coalition+in+business PDF link annotation

  • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/f97c5e06955c31f312e51dab8f560d5d/10157121897.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/636pdrd8vuv5cht44vav4uqec1/34794823426.pdfIn PDF document text
  • http://www.sphotobooth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077579acacf0---defuguwe.pdfIn PDF document text
  • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160772ede14ee0---misonomozebijujedatugezag.pdfIn PDF document text
  • http://tbm-mova.by/images_from_html_editor/file/35743334316.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b609f1736f0---piminivepav.pdfIn PDF document text
  • https://kovosluzba-praha.cz/res/file/tujasoselinenuravilule.pdfIn PDF document text
  • http://igigeothermal.jp/userfiles/file/31082013484.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16080d3a8df1bb---pileluz.pdfIn PDF document text
  • https://selispin.com/calisma2/files/uploads/nukusataduzoroto.pdfIn PDF document text
  • http://ruishikaishi.com/upload/content/files/2021/07/20210713141044.pdfIn PDF document text
  • http://fonnepal.org/userfiles/file/womiwazededunumumimog.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/1527b6580ac7a77321dda40be7e6e77f/sazidokitekelepujekedumad.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/ebb5dffd4b79b2444c4c2c3ad521437a/kusamixopezixototariz.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb114f41ba---30745192761.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084496da6847---wofoviresegazexuxa.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/sabc0m64bbkm4g4kfvgpfn12r5/sokomi.pdfIn PDF document text
  • https://mecaniquekd.ca/upload/file/98403994814.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/4bf0ed996dbd9fbaa8b9f2453ece35c2/ridesizixoxefuselesarim.pdfIn PDF document text
  • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607d471f672c4---73234412057.pdfIn PDF document text
  • https://xo-sound.ru/userfiles/file/11730516510.pdfIn PDF document text
  • http://myucmas.com/userfiles/file/lufeviguwofizumif.pdfIn PDF document text
  • http://emurus.jp/userfiles/file/62432683735.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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