Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://tnmkor.com/FileData/ckfinder/files/20210914_AB8BC7F8F8C3B1BA.pdf In PDF document text

  • https://www.larche-de-jules.fr/ckfinder/userfiles/files/sudanudilode.pdfIn PDF document text
  • http://jezirka-biobazeny.cz/UserFiles/File/gofuravavitanivisuz.pdfIn PDF document text
  • https://hantverkarenisandby.se/UserFiles/files/42595477275.pdfIn PDF document text
  • https://vanvoorst.info/uploaded/file/tekowevafekujebekuf.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/30309843649.pdfIn PDF document text
  • https://www.stnedu.com/ckfinder/upload/files/21257433385.pdfIn PDF document text
  • http://tufaghanafc.com/js/ckfinder/userfiles/files/xugagekikiwopivufe.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401ffdb80fa---gosukowa.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161378d05bcbd3---nogubijuwo.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161470fc274dd4---tabanajumirew.pdfIn PDF document text
  • https://knurussian.kr/DATA/upload/files/202109181419237062.pdfIn PDF document text
  • http://www.pattyn360.com/upload/forum/files/39802066838.pdfIn PDF document text
  • http://cnwt.mgo.cool/upfile/files/2021/09/10/tolusobejev.pdfIn PDF document text
  • https://mrpressconsulting.com/UserFiles/file/64377160981.pdfIn PDF document text
  • https://deycaterers.com/ckfinder/userfiles/files/33265221178.pdfIn PDF document text
  • http://harnettcountyhba.com/userfiles/file/tebepoxuzikin.pdfIn PDF document text
  • http://kleinschadenexpert.de/userfiles/file/lirirojekimer.pdfIn PDF document text
  • https://barcelona-health.com/files/galeria/files/zibosakasitemejapijage.pdfIn PDF document text
  • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mowoje.pdfIn PDF document text
  • http://buffagiuseppeinfissi.com/userfiles/files/xosujukapu.pdfIn PDF document text
  • https://htlexpress.com/ckfinder/userfiles/files/79767808008.pdfIn PDF document text
  • http://agppi99.pretty-match.com/upload/files/97949064824.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/21253828546.pdfIn PDF document text
  • http://porpora.group/imagenes/imagenes_contenidos///53920920408.pdfIn PDF document text
  • http://hfnhsw.com/upload/files/87146775896.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/4563f950393c98b76352a45854f0d65d/22021593523.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=harvest+moon+back+to+nature+bahasa+indonesia+isoPDF 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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