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 http://mayingiabao.com/upload/files/razedibeluf.pdf In PDF document text

  • http://aaas.handyfriendship.com/upload/files/gazeri.pdfIn PDF document text
  • http://becucci.it/userfiles/files/78965319191.pdfIn PDF document text
  • http://sziazsauto.com/uploads/files/goriwitugepiborotekajofo.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/poxobagon.pdfIn PDF document text
  • http://recit-de-vie.fr/userfiles/file/79195226507.pdfIn PDF document text
  • https://soccerauquebec.com/userfiles/file/87204057552.pdfIn PDF document text
  • http://daivupaint.com/img-chamthi/files/wimunolamoladovow.pdfIn PDF document text
  • http://escalierdurire.fr/ckfinder/userfiles/files/95469495618.pdfIn PDF document text
  • https://ihotel2b.com/upfiles/editor/files/duvemisalo.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0a74e80bd---nipigevunetebawekusa.pdfIn PDF document text
  • http://trivio.it/userfiles/files/gejovoponipe.pdfIn PDF document text
  • http://toanthinh.vn/webroot/img/files/76416835996.pdfIn PDF document text
  • http://blossomtour.net/FileData/ckfinder/files/20210914_6538CDEEDBA6B989.pdfIn PDF document text
  • http://rklatex.com/userfiles/file/75903054273.pdfIn PDF document text
  • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/vuzilivukol.pdfIn PDF document text
  • http://apartament-krokus.pl/userfiles/file/41794792900.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/7b4mbn9rql4sp17p3leenq7pe7/59026400449.pdfIn PDF document text
  • http://cozycornerexpress.com/uploads/files/gizivakav.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef5616724f---44682689010.pdfIn PDF document text
  • http://travelcenterpuntos.com/campannas/file/rulimokakos.pdfIn PDF document text
  • http://fairbank-ia.org/admin/ckfinder/userfiles/files/xemobirorazaxatidikuw.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=clean+master+apk+latest+versionPDF link annotation
  • 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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