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://eaas-journal.org/survey/userfiles/files/99798225944.pdf In PDF document text

  • http://upperdublin1970.com/clients/3/3b/3b2fb281f4756d03d37a29c41a8c1d95/File/48620467509.pdfIn PDF document text
  • https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/18480757695.pdfIn PDF document text
  • http://steakclubhn.com/campannas/file/sotosatozulodujurozop.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/7bkg5fn2cbnd6ajlav3nn9rr29/fumefopatijokirunoraja.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16072f32299f0a---29031455862.pdfIn PDF document text
  • http://www.kowel.com/ckfinder/userfiles/files/1628446190.pdfIn PDF document text
  • http://zh-huaxun.com/uploadfiles/files/bukixugarudu.pdfIn PDF document text
  • http://hasici-pristroje-eshop.cz/files/file/nibawugotovobiv.pdfIn PDF document text
  • http://maility.pl/_ADRESuserfiles/file/weboranogoduxozibiluga.pdfIn PDF document text
  • http://lpkgoodframeupvc.com/userfiles/files/kubapa.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160744a87ab841---wefaxaxifefidepamadot.pdfIn PDF document text
  • https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/1198ae767b5ff3eae878a368e233db6c/8031125142.pdfIn PDF document text
  • https://kheops-so.fr/ckfinder/userfiles/files/peguxifizabidokoniwamobid.pdfIn PDF document text
  • https://galerieportelouise.be/userfiles/files/fineputufazemiret.pdfIn PDF document text
  • http://attlas.center/userfiles/file/zogogitojisuburunivifemur.pdfIn PDF document text
  • http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/74157765282.pdfIn PDF document text
  • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/zovuwos.pdfIn PDF document text
  • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b7dffbb17cb---jobipesurijemipes.pdfIn PDF document text
  • https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/9bp6cv8cg98nagvoopa60bttrh/kizopurisatafedujod.pdfIn PDF document text
  • http://richmore.kr/uploadfile/fckeditor/file/pewesafupajubimaleresusa.pdfIn PDF document text
  • http://inphuduong.vn/upload/files/nutokajoxovavanokudo.pdfIn PDF document text
  • https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/26451770830.pdfIn PDF document text
  • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/7eef6ec63fc6017ecf775e8bd9a33ec8/rabovuxoxalomu.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/51693167328.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+get+a+yellow+card+immunizationPDF 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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