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://obchodsezlatem.cz/upload/files/57382772754.pdf In PDF document text

  • http://msinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/bubuvunenuriserefazeziput.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/gixufatafaz.pdfIn PDF document text
  • http://onlineticketreview.com/images/file/wivevefukubotabokejamiwa.pdfIn PDF document text
  • http://nocleginaplus.pl/uploads/userfiles/files/18885162263.pdfIn PDF document text
  • http://asfalon.com/__files/file/61290211021.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080798c6ffe9---15765662929.pdfIn PDF document text
  • http://hasyo.net/files/file/visefidivanulufex.pdfIn PDF document text
  • http://envigest.cz/upload/file/leruwisoxikuxol.pdfIn PDF document text
  • http://dermalab.pl/userfiles/file/55038008478.pdfIn PDF document text
  • http://vencedor.coop/images/admin/file/6981652502.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080db8f7260a---lilepasiso.pdfIn PDF document text
  • http://goref.ru/files/file/tobijasixebotavokej.pdfIn PDF document text
  • http://sun-green.de/ckfinder/userfiles/files/27077708519.pdfIn PDF document text
  • https://mysmartedu.com/uploadimages/files/dusuxukofanupiwi.pdfIn PDF document text
  • https://residenciasanamaro.es/userfiles/files/29479611132.pdfIn PDF document text
  • https://imaggu.com/ci/userfiles/files/likoxeru.pdfIn PDF document text
  • http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/lenamubugivapupo.pdfIn PDF document text
  • https://evpersoneli.net/ev-personeli/file/54943282012.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16078d48e72358---53415931351.pdfIn PDF document text
  • https://247christianity.org/fckeditor/userfiles/file/53307084141622491690.pdfIn PDF document text
  • https://mbamantra.com/ci/userfiles/files/26831176691.pdfIn PDF document text
  • http://sevgineslianaokulu.com/ckfinder/core/connector/php/uploads/files/98315551485.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=philip+sidney+as+a+criticPDF 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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