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
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://myshiou.com/uploads/files/202203062016079504.pdf In PDF document text

  • https://asset-books.com/userfiles/file/kozubapelidine.pdfIn PDF document text
  • https://sabovewedasujak.weebly.com/uploads/1/3/4/4/134493104/6120133.pdfIn PDF document text
  • https://tozilamuvopodes.weebly.com/uploads/1/3/5/9/135966944/5843b920f0b.pdfIn PDF document text
  • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/56180bdcffb9e1c2d16b71382621a180/kolimise.pdfIn PDF document text
  • http://ebsenglish.net/_UploadFile/Images/file/danaf.pdfIn PDF document text
  • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/54994748468.pdfIn PDF document text
  • https://wemotodatuvuxog.weebly.com/uploads/1/3/2/6/132681969/mixerajalogigep_vulinawotev_nilaju.pdfIn PDF document text
  • http://mountainsidecamp.com/upload/files/tasuvisijefopotorenilovop.pdfIn PDF document text
  • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1623c3b22053aa---68509231110.pdfIn PDF document text
  • https://dedatamigatebi.weebly.com/uploads/1/4/1/4/141401157/defegobes_nowif_bosiwixamewido_xulivegito.pdfIn PDF document text
  • https://kusumuwuwudes.weebly.com/uploads/1/3/4/3/134338751/dijewuta.pdfIn PDF document text
  • https://koparieshorvathbusz.hu/files/file/gimomujubilodolut.pdfIn PDF document text
  • https://ribobuwatefinu.weebly.com/uploads/1/3/4/4/134469587/7618362.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/45469aff1dd124c7263486f432feac0a/53619882003.pdfIn PDF document text
  • https://neritakewu.weebly.com/uploads/1/3/1/8/131856632/bcab2076a103f5.pdfIn PDF document text
  • https://gapulujazupimes.weebly.com/uploads/1/3/4/7/134775062/61e793.pdfIn PDF document text
  • https://sivabukejiwija.weebly.com/uploads/1/3/4/4/134459056/5839123.pdfIn PDF document text
  • http://st-communications.com/ckfinder/userfiles/files/27213137317.pdfIn PDF document text
  • https://kajabukege.weebly.com/uploads/1/3/1/3/131379037/1355948.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16247c05de20dc---lifenaduluviwoxot.pdfIn PDF document text
  • https://bepopasexib.weebly.com/uploads/1/3/4/3/134356469/rapiwofa.pdfIn PDF document text
  • https://wivixovipi.weebly.com/uploads/1/3/4/4/134442696/dabukigego.pdfIn PDF document text
  • http://surveycook.com/upload/tmp/202202/file/wowofijupiga.pdfIn PDF document text
  • https://wirut.co.za/YmrXLWy8?keyword=does%20period%20go%20before%20parenthesesPDF 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 extracted file (font_00_sfnt_off0000c5a4.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c5a4.bin)

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