Malicious PDF — malware analysis report

Heuristics 6

• 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) 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 https://crewmak.ru/uplcv?utm_term=china+plate+cockney PDF link annotation

  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801918ebe6b---30797219826.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d6f2756b0---58792664423.pdfIn PDF document text
  • http://fw-simple.com/uploads/files/63495912473.pdfIn PDF document text
  • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/fc4nu885hq13b47fls9qi02oa1/46987662082.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/38f071bee2b65ef3b9a1c54e2ba350d4/43832083671.pdfIn PDF document text
  • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b54551f0d94---76342040431.pdfIn PDF document text
  • http://sotel-perm.ru/site/file/zivanebefowawi.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160adffdc24197---93277428799.pdfIn PDF document text
  • http://evergladesharvesting.com/ckfinder/userfiles/files/64331722601.pdfIn PDF document text
  • http://alexanderkanevskyartistbiography.com/clientMedia/file/2908557948.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075553567f7b---5036944229.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/6941dcd6bf64fdc7a848a6c955aee789/ramijepawonitanexibeg.pdfIn PDF document text
  • https://ipic.vn/userfiles/file/vufoxodagivazitagon.pdfIn PDF document text
  • https://stratasphere.online/userfiles/file/vipodisage.pdfIn PDF document text
  • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608848a16895b---94561044137.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa82795c90---30178748014.pdfIn PDF document text
  • http://etcad.net/np/upfile/file/burubis.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/pawalikuzajobege.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6fb13a99d4---mugemilix.pdfIn PDF document text
  • https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/0018a1e09bd8f26784993e41ea26d922/29984300536.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16075871faa234---bemiwodapavosagijun.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160c28ad3e9d20---vawigefolebe.pdfIn PDF document text
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/tnb5b1i4qqb7fivo1adtb4qtk5/69988304308.pdfIn PDF document text
  • https://newtop-eg.com/userfiles/file/85292084435.pdfIn PDF document text
  • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/r1bla0akd4nl85j9t6fak1vhp1/17849480813.pdfIn PDF document text
  • 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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