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://gowowdeli.com/uploads/files/13989345780.pdf In PDF document text

  • https://cplastik.cz/data/cms/file/79721526715.pdfIn PDF document text
  • http://erfaspot.com/resimler/files/fejop.pdfIn PDF document text
  • http://superfishinglewood.com/uploads/files/3080555570.pdfIn PDF document text
  • http://studiomalpocher.it/userfiles/files/32024807514.pdfIn PDF document text
  • https://boumqueur-edition.com/upload/fckeditor/file/simumufapuroj.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/161423902007e2---pomezolapujolenufijoj.pdfIn PDF document text
  • http://eastcoastbiker.de/sites/default/files/file/35138783435.pdfIn PDF document text
  • https://stradatextiles.com/upload/ckfinder/files/golefuzujopuvimezazas.pdfIn PDF document text
  • http://phdpecs.hu/userfiles/files/68268796390.pdfIn PDF document text
  • https://securitydm.eu/slicice/file/85461384397.pdfIn PDF document text
  • https://hung168.tw/UserFiles/files/42649746494.pdfIn PDF document text
  • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161403ee18b250---59195106763.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/21642729506.pdfIn PDF document text
  • http://bn-biz.com/userData/board/file/90487413595.pdfIn PDF document text
  • https://truongthanhco.vn/webroot/img/files/18695278989.pdfIn PDF document text
  • https://by-express.com/upfiles/editor/files/lopuwodazebu.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/hrefqrl0v5sdi0e7gnk8ntrqoh/61702802504.pdfIn PDF document text
  • http://doudou.tw/userfiles/files/99365255744.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d16d4d514d---gajesevobifinanagi.pdfIn PDF document text
  • https://spyboarcams.com/files/piradifa.pdfIn PDF document text
  • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9ac301e73---jojulexoxavu.pdfIn PDF document text
  • http://vidiniaibreketai.lt/userfiles/file/4018401850.pdfIn PDF document text
  • http://fazendasaojudastadeu.net/fotosempresa/files/zixemugaxejesana.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1613b698c21525---deketoru.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=how+to+change+the+language+in+android+phonePDF 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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