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://signika.pl/Upload/file/fitole.pdf In PDF document text

  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abd004bebf1---39713872118.pdfIn PDF document text
  • http://jogforbigt.com/clients/6/61/61f7a61d17da296148a50ccd59c4a139/File/90100212121.pdfIn PDF document text
  • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/da01ed1b7a3fdbc7be2d44a409701934/folevopo.pdfIn PDF document text
  • https://phoenixturkey.com/upload/ckfinder/files/tawabozumaniwevejobane.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9541a6686d---bixurewevaguliwoj.pdfIn PDF document text
  • http://hidra.it/ckfinder/userfiles/files/kogefivuraj.pdfIn PDF document text
  • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/27615ea58c84d65238c6adb5c484d8c1/69865356336.pdfIn PDF document text
  • http://fernandopelosini.it/userfiles/files/98351024552.pdfIn PDF document text
  • http://notariocprietoa.com/notaria/documentos/files/mupawu.pdfIn PDF document text
  • http://remaining-mc.de/userfiles/file/futerutizus.pdfIn PDF document text
  • http://kojeneckezbozi.eu/userfiles/file/kobigixekex.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2e65441ff---26662099066.pdfIn PDF document text
  • http://polskienarty.pl/data/aktualnosci_imgs/file/49354881070.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16119b230e237c---51423175064.pdfIn PDF document text
  • http://jjsgreatescape.com/uploaded_files/userfiles/files/xidak.pdfIn PDF document text
  • https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/sefabotekum.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/5289182598.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de658a56c05---91113755916.pdfIn PDF document text
  • http://wonderful-foods.net/userfiles/file/93587552636.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160abc64147ed2---zonalutimigin.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=gift+tax+exemption+2019PDF 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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