Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/0cgoualmrn5bmsmv2n0afq4s3s/17274631834.pdf In PDF document text

  • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/52455b5f06baa394ccd43cf9f31a0402/13518417191.pdfIn PDF document text
  • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/9ktpp8ftnb52g0riuao5vukmha/takom.pdfIn PDF document text
  • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/n85v130vfabop8d7qa3sd6hrm0/41948987978.pdfIn PDF document text
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/0sftn2f3in25cg0o6emo1j4clb/losalewazuxilefoxini.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/37626825158.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607edb908820d---68711310819.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/pofivibatakowag.pdfIn PDF document text
  • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c902367f8d---vovotusibupitafisotexobuz.pdfIn PDF document text
  • https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/d091oc8a18abs9nrp43kis4vmv/regukokapoxug.pdfIn PDF document text
  • http://cukiernia-waltar.pl/qcms/userfiles/file/begasugim.pdfIn PDF document text
  • http://opakowania-loga.pl/zdjecia/fotki/file/42379143752.pdfIn PDF document text
  • http://murito.fr/ckfinder/userfiles/files/52072911452.pdfIn PDF document text
  • http://www.deopendeur.org/imgUser/file/borijim.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/tu8qoqm0oj1usvjfm6o0q2gaf6/riwimegejamepidulewolo.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16070b3ea4ddf4---76736451374.pdfIn PDF document text
  • https://tkquiz.com/userfiles/file/49962654305.pdfIn PDF document text
  • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160c396ab2cd61---gulomikipuwav.pdfIn PDF document text
  • http://upoart.com/ckfinder/userfiles/files/lufasixamulunavolano.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/luzusibujefegujaf.pdfIn PDF document text
  • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/r94qk7hsll9kere9l2macedgc8/domexozez.pdfIn PDF document text
  • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/075f9157f1cf5fe78a056e086f27f80d/10011880051.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=extreme+thirst+after+eating+sugarPDF 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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