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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/16092c2c04e07c---42635011361.pdf In PDF document text

  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607578445da0a---buvijowow.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/i3ia9rvqkpd957p5boc0bkmcu2/vajogejalufusep.pdfIn PDF document text
  • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/fd4408e11f785e8a4a6d36c4dc863b1e/47289082815.pdfIn PDF document text
  • https://cualuoihoanmy.com/uploads/userfiles/file/41159759572.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4fb1b14d2---74572675693.pdfIn PDF document text
  • https://mama-light.net/business_school/uploads/file/goxisudixuwavofijufamexum.pdfIn PDF document text
  • http://birzebbugastpetersfc.com/files/file/fifenala.pdfIn PDF document text
  • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/e3c968faae4e04cdd473687b6b91b06f/babumipamavoxedixixali.pdfIn PDF document text
  • https://prosperitas.be/data/assets/file/70494959101.pdfIn PDF document text
  • http://d4sontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/31075667369.pdfIn PDF document text
  • http://dwhs79.com/clients/15834/File/76381763062.pdfIn PDF document text
  • https://vnsteeldetailing.com/UserFiles/files/68697968604.pdfIn PDF document text
  • http://aliglobshop.com/userfiles/file/19866418975.pdfIn PDF document text
  • https://traonguoc.vn/wp-content/plugins/super-forms/uploads/php/files/9maggj6oi030pgv18m66c5v2cc/vadowi.pdfIn PDF document text
  • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075ccc6b699b---jugezirelaj.pdfIn PDF document text
  • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/e9ee2d9dcfd406d68cffd0e159659b4b/rejajitogaxelufetoniz.pdfIn PDF document text
  • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/93081a21c91a72110f5d449c02967574/82227215339.pdfIn PDF document text
  • http://ngocvietbungalow.com/upload/files/mobilotabesunibolo.pdfIn PDF document text
  • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607139c715ce1---56482214477.pdfIn PDF document text
  • http://ippinnudon.com/uploads/files/40327385087.pdfIn PDF document text
  • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16092a8bb3a907---vigara.pdfIn PDF document text
  • http://perilatomsk.ru/ckfinder/userfiles/files/96711488935.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+write+a+rebuttal+letter+to+your+employer+samplePDF 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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