Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://synerhu.ru/uplcv?utm_term=apk+mod+tennis+clash PDF link annotation

  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9cdca218c---suriduvojojofufuvi.pdfIn PDF document text
  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16139a32c1c046---tureju.pdfIn PDF document text
  • http://hutbephottaihaiphong24h.com/upload/files/xolunanosuxoxebag.pdfIn PDF document text
  • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613139c503746---nefarisumedunub.pdfIn PDF document text
  • http://jamalcar.com/userfiles/file/16493299341.pdfIn PDF document text
  • http://sdes.in/uploads/1780115414.pdfIn PDF document text
  • https://toolsatool.com/userfiles/files/45891570358.pdfIn PDF document text
  • http://gutachterbewertung.de/userfiles/file/papatulozoz.pdfIn PDF document text
  • http://gjbbang.com/userData/board/file/54693420830.pdfIn PDF document text
  • http://purepoem.com/resource/docContentImg/file/2021-09-04/4122ff0d1adf58b989f38c5c7acd67c1.pdfIn PDF document text
  • http://evrofurnitura.by/elax-furnitura.ru/uploads/files/96814639907.pdfIn PDF document text
  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/161308cd9d174d---69609452472.pdfPDF link annotation
  • http://booklandbooks.com/userfiles/file/vigebegisaget.pdfIn PDF document text
  • http://petrduchek.com/files/mixajigogoxu.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/24423472619.pdfIn PDF document text
  • https://hyosung-gulf.com/uploads/file/61033467234.pdfIn PDF document text
  • http://first-group.kr/ckupload/files/zobiwamivenexedinojewodi.pdfIn PDF document text
  • http://luxmeterthai.com/ckfinder/userfiles/files/69472999102.pdfIn PDF document text
  • http://unixsensor.com/uploads/files/202109071755346356.pdfIn PDF document text
  • https://jobtiara.com/files/files/roderekefewefalisa.pdfIn PDF document text
  • http://lngpetro.com/userfiles/file/devabisapafizad.pdfIn PDF document text
  • http://hkxhjfc.ltd/uploads/files/20210909031102.pdfIn PDF document text
  • http://fnathservices.com/upload/file/sobedazoxokugixujesamudot.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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