Malicious PDF — malware analysis report

Heuristics 6

• 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 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://csc0731.com/userfiles/file/20210727190143_vtsxp1.pdf In PDF document text

  • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3b203eff3b---76433767383.pdfIn PDF document text
  • http://www.alfapilates.pl/upload/file/rivinonixufaramudovet.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16083b6b110870---73793020138.pdfIn PDF document text
  • http://herium.net/FileData/ckfinder/files/20210818_4992CFB51194E82B.pdfIn PDF document text
  • https://bestcoloringpages.com/userfiles/file/21569494965.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7f02a515b1---22523872365.pdfIn PDF document text
  • http://paoladebenedetti.eu/userfiles/files/5786690376.pdfIn PDF document text
  • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160918c29439b4---litowifosakilevowemog.pdfIn PDF document text
  • http://dvif.fr/userfiles/file/tezidekot.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1608683a62cf35---81663148869.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-6-15/20210615224841318419.pdfIn PDF document text
  • http://megaprestige.ru/uploads/files/zumijixokikefaxeduzixun.pdfIn PDF document text
  • http://ddaengshop.com/ckupload/files/50001915555.pdfIn PDF document text
  • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/3eatsejqldc8rqddidtl4g7p3u/15828178305.pdfIn PDF document text
  • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/3a70f3584e137fa26a83cd3d5f37d075/pinowamutiv.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c83d3631d---8661642490.pdfIn PDF document text
  • http://waterlootour.com/FileData/ckfinder/files/20210613_02FDA9BC5EC1C1B0.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/d954argmom6jmsb427q1h0lpe1/rekukobosaxaro.pdfIn PDF document text
  • http://airholic.com/UpFiles/WebEditorFiles/file/58976737174.pdfIn PDF document text
  • http://baocaosudanang24h.com/uploads/image/files/56319356660.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1610945f3e051f---94230428688.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160aaac16ed105---jijabuw.pdfIn PDF document text
  • https://betalinktech.com/blmedia/file/76599979239.pdfIn PDF document text
  • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/e5150d3cc9f58df363ec2739409a785a/80557962582.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=use+case+diagram+usesPDF 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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