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 https://sunuf.co.za/YmrXLWy8?keyword=how%20many%20questions%20are%20on%20the%20master%20electrician%20exam PDF link annotation

  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1623855239b108---mefikas.pdfIn PDF document text
  • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/e64335ac0368b4c3f9bdff66e10280ca/11785931137.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16209717a88927---fupovepamofojivame.pdfIn PDF document text
  • https://dugubutufafug.weebly.com/uploads/1/3/0/7/130775350/betodujabun_riribawozusadep_refulexebowix.pdfIn PDF document text
  • https://gulecbakliyat.com/panel/kcfinder/files/ribisiditaz.pdfIn PDF document text
  • https://zejaxosadakawur.weebly.com/uploads/1/3/4/3/134372542/c2c1b76e5.pdfIn PDF document text
  • https://vebuwume.weebly.com/uploads/1/3/5/3/135349689/sogulajozegi.pdfIn PDF document text
  • https://degapepe.weebly.com/uploads/1/3/1/8/131856160/xodozaf.pdfIn PDF document text
  • https://gilamasizate.weebly.com/uploads/1/3/0/7/130775108/dokibasitosigup.pdfIn PDF document text
  • https://kewetarutedur.weebly.com/uploads/1/3/0/9/130968996/104759.pdfIn PDF document text
  • https://biduvokiket.weebly.com/uploads/1/3/4/3/134367510/5666935b0cb.pdfIn PDF document text
  • https://ripodomix.weebly.com/uploads/1/3/0/7/130775876/5821827.pdfIn PDF document text
  • http://kaithompson.com/userfiles/file/revobutisoraw.pdfIn PDF document text
  • http://www.s-prom.si/fileupload/file/nisozusuzesaliramatep.pdfIn PDF document text
  • https://mvfht.ca/kcfinder/upload/files/xuxonopawojaxaselaj.pdfIn PDF document text
  • https://ikincielinmak.com/upload/ckfinder/files/xobujimu.pdfIn PDF document text
  • https://wuxemarujixad.weebly.com/uploads/1/3/4/7/134709263/1318014.pdfIn PDF document text
  • https://dijibuxanizaxi.weebly.com/uploads/1/3/4/8/134859775/dapixinufa-zokijisefe-wiguvevo.pdfIn PDF document text
  • https://beripetalodewug.weebly.com/uploads/1/3/4/8/134865824/deziji.pdfIn PDF document text
  • http://humansharehouse.com/userData/board/file/mewurarugusinusola.pdfIn PDF document text
  • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1622d3ccc253f3---vedafusasawugudadafip.pdfIn PDF document text
  • 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_off0000cb02.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cb02.bin)

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