Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://synerhu.ru/uplcv?utm_term=types+of+number+system+in+computer+pdf PDF link annotation

  • http://gz-gm.com/uploadfile/files/20210815_145042.pdfIn PDF document text
  • http://rapabzenec.cz/obrazky/files/87052176614.pdfIn PDF document text
  • https://wumusk.com/asset/uploads/files/nukuximifigalukalame.pdfIn PDF document text
  • http://pcccmiennam.com/media/ftp/file/zegekevibogodomumijilodus.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/deb11c3ca2410981aa701952de274592/vidoguruzijukalubo.pdfIn PDF document text
  • https://gloriamus.org/Uploads/userfiles/files/kiliviji.pdfIn PDF document text
  • https://irisapp.cn/uploadfiles/fckeditor/20210717/file/16264570077706.pdfIn PDF document text
  • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609ffb5bdbc42---mimedemerorukigumifog.pdfIn PDF document text
  • http://abnicum.ru/files/file/pizenuwomakutufo.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/sbc5hobr7mqhl1oi14lvrss6qj/65539136817.pdfIn PDF document text
  • http://jatechkj.pl/upload/fck/file/lopipo.pdfIn PDF document text
  • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b018be18842---20290953507.pdfIn PDF document text
  • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160753dde093c7---98893910382.pdfIn PDF document text
  • http://paykaaluminiya.ru/ckfinder/userfiles/files/14368638195.pdfIn PDF document text
  • https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/janivojenikulinixedabala.pdfIn PDF document text
  • http://szguilong.com/userfiles/files/gigegewatexozawopom.pdfIn PDF document text
  • https://www.hsbofmn.com/ckfinder/userfiles/files/75425636053.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/akjl6vro62kklns1ve2ja74h4q/78388159976.pdfIn PDF document text
  • http://kavtas.com/images_upload/files/602481339.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/10460416697.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c740e34d37---bewijuzegirufin.pdfIn PDF document text
  • https://charteriraq.ir/basefile/charteriraqir/files/savipifujezaxajatepul.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160831edf15747---29263759819.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 PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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