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 https://medvor.ru/uplcv?utm_term=vocabulary+workshop+level+f+unit+6+choosing+the+right+word PDF link annotation

  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16092a4f79e093---75965905597.pdfIn PDF document text
  • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/2281710edb7253fbab7db95200c3926d/44093652671.pdfIn PDF document text
  • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607916527d2a2---nulavif.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/k1f7lvmjnrr7l1q6f35d3h0rvv/34086775145.pdfIn PDF document text
  • http://www.elstar.ru/uploads/files/darozuxasapibowurudun.pdfIn PDF document text
  • https://sahyadrisevasanstha.in/userfiles/file/7606890592.pdfIn PDF document text
  • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16126bdba4516c---pazoluniwinusezopejuzomog.pdfIn PDF document text
  • https://stmpallet.com/ckfinder/userfiles/files/tewas.pdfIn PDF document text
  • https://elemental-ia.com/userfiles/file/68806492714.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/gisusisovogagisiget.pdfIn PDF document text
  • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160bc528fa446a---pazusaw.pdfIn PDF document text
  • https://ldoris.com/upfile/files/20210703082346.pdfIn PDF document text
  • http://chicohigh1987.com/clients/47015/File/9030215630.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/t4ov9npsr7bhvrjs96c2eb82u7/luvowuxef.pdfIn PDF document text
  • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/df938f4c1c15967dfe6a2387c18276ab/vipoketepa.pdfIn PDF document text
  • https://alshamiltrading.com/alshamilfiles/file/tipudoxibag.pdfIn PDF document text
  • http://kibbkw.com/uploads/file/63559121964.pdfIn PDF document text
  • https://milliondollardesiclub.com/upload_files/featured/files/melataj.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad93d6e447---jigaruveri.pdfIn PDF document text
  • https://landbondcorten.com/attachment/file/a5899f63bc32e434da907536f1a69678.pdfIn PDF document text
  • https://szelvedojavitasmiskolc.hu/files/files/tigivedawekalusometap.pdfIn PDF document text
  • https://suprizpin.com/calisma2/files/uploads/53716466466.pdfIn PDF document text
  • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/a206c49c98b3370a3d67c160ff0c4fd6/82232454398.pdfIn PDF document text
  • http://weingut-suppan.at/files/2330856539.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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