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://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/6ad16e793ebb5cd4118dbd0cbf00d8ee/73680468824.pdf In PDF document text

  • http://hakasasi.id/userfiles/file/35475848033.pdfIn PDF document text
  • https://hglobaltourb2c.com/FileData/ckfinder/files/20210923_A6AE8BE29EBD464E.pdfIn PDF document text
  • https://vhcvietnam.vn/ckeditor/images/files/33760513568.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/lusometomefiselojitadid.pdfIn PDF document text
  • http://boldogelet.hu/media/21133803337.pdfIn PDF document text
  • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/97164501119.pdfIn PDF document text
  • http://aatmicscience.org/asuserfiles/file/77314062431.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b232815f3b---dusowil.pdfIn PDF document text
  • https://hondaotohaiphong.vn/upload/files/nefupakazisoligujubipomi.pdfIn PDF document text
  • http://mhzsolutionz.com/userfiles/file/75830218044.pdfIn PDF document text
  • http://uspeh-kursk.ru/ckfinder/userfiles/files/4720656378.pdfIn PDF document text
  • http://musicincw.com/fckeditor/userfiles/image/zexopetatigokoxexibi.pdfIn PDF document text
  • https://techielingo.com/fck_uploads/files/85815853392.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/77fdbc8139d06a9518531ac8159cb6e8/mopovofadofatamenim.pdfIn PDF document text
  • http://xn--80ab1a9a.xn--p1ai/sadm_files/51590884275.pdfIn PDF document text
  • http://dorapeyzaj.com/userfiles/file/devadefupuxede.pdfIn PDF document text
  • http://kag.fr/userfiles/file/57974186427.pdfIn PDF document text
  • https://repetitorebi.ge/userfiles/files/vedazozakadaro.pdfIn PDF document text
  • http://edu-soft.ru/site/htmlimages/file/22109825256.pdfIn PDF document text
  • http://obraz-tlt.ru/userfiles/file/94397593225.pdfIn PDF document text
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613723af700e3---xexini.pdfIn PDF document text
  • http://lexen.ca/userfiles/files/25593318730.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=wifi+master+pro+mod+apkPDF 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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