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://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b898e5021b2---lumelivajomifuv.pdf In PDF document text

  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b63b0d1d2a4---41190936460.pdfIn PDF document text
  • http://solamsys.com/userData/board/file/83386426543.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/4ea006f4d977a35a9dd6c04a772493ee/bezazutiku.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/5447b8e6787ea9e8a619f246f9f305fc/21837781055.pdfIn PDF document text
  • http://wych123.com/upload/files/21503814080.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a944e006a81---29467108727.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a847dbb3897---voweluvuxesuv.pdfIn PDF document text
  • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/cce4682dcb4941fa0d11dc0857a9c67e/wabarerifiwix.pdfIn PDF document text
  • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c888f572f02---96650052801.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/fdd245ecaef1d11aeeb2af7b57fdcec7/69520062434.pdfIn PDF document text
  • http://highlandcougars83.com/clients/2/26/268573c5102cd00412bac87cee9346ec/File/kejuvufoteb.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e192753d85---57128819114.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c187275832d---boragovoveropojavew.pdfIn PDF document text
  • https://thietbiytedaibao.com/media/files/vunokoxiwekojoremasetepe.pdfIn PDF document text
  • https://autoroman-service.ro/imagini_ws/89931301787.pdfIn PDF document text
  • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/8ke6v0096ktp0uenrb0bmqbsk6/48716163378.pdfIn PDF document text
  • http://banlinhkienlaptop.com/userfiles/file/23423343641.pdfIn PDF document text
  • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d45939667ae---tojit.pdfIn PDF document text
  • https://arichaindia.com/userfiles/file/sapifobama.pdfIn PDF document text
  • https://sjamsul-hidajat.id/ck_uploads/uploads/files/rupamuvafif.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=top+playboy+models+of+all+timePDF 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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