Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://coretry.ru/uplcv?utm_term=kaka+manga+apk PDF link annotation

  • https://lexcyberia.com/userfiles/files/venikesovofosito.pdfIn PDF document text
  • http://longvu.vn/Images_upload/files/fatenemafiwemo.pdfIn PDF document text
  • https://cevhertemizlik.com/userfiles/files/3874593611.pdfIn PDF document text
  • http://archifolder.com/userfiles/files/61007236346.pdfIn PDF document text
  • http://zavalinka.by/var/upload/file/41440594432.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ldoe5ajvqsjp1ub2ihar769841/70997327824.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1614f919f87ba6---1110130477.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/49df36f134fe007b77a9bc3ba7486a62/zuvukerolev.pdfIn PDF document text
  • https://atiksigorta.com/files/gafijukoxed.pdfIn PDF document text
  • http://spartapr.com/images/upload/file/41269056612.pdfIn PDF document text
  • http://heyumpnd.com/userfiles/file///19767526691.pdfIn PDF document text
  • https://a1-recruitment.fr/v2011/Files/fck_upload/file/1892827801.pdfIn PDF document text
  • http://mellorymotors.ru/admin/ckfinder/userfiles/files/gekowagefat.pdfIn PDF document text
  • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e18a2cc530---tesoxulugixudujosezujo.pdfIn PDF document text
  • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/332d75c4d59094f475a8b04ab760b2f0/8666222601.pdfIn PDF document text
  • http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/sijazag.pdfIn PDF document text
  • http://baheth24cars.com/ckfinder/userfiles/files/mikuzawu.pdfIn PDF document text
  • http://brmhn.com/userfiles/file/20210912161203_dhu2b1.pdfIn PDF document text
  • http://parzenica-bialka.pl/userfiles/files/wanozurakezimonopu.pdfIn PDF document text
  • http://jjw-led.com/userfiles/file/xifilasazobokudajagejo.pdfIn PDF document text
  • http://sun-dr.com/uploads/files/202109172014003654.pdfIn PDF document text
  • https://viveironativodevicosa.com.br/ckfinder/userfiles/files/rakezujemiwi.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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