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://czdashan.cn/uploadfile/file/2021051005274073499.pdf In PDF document text

  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608181a3cb9fc---sugiparofitenosopime.pdfIn PDF document text
  • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/c3022283da187ec10bd21afbece7c64a/93800922198.pdfIn PDF document text
  • http://vmkmsz.hu/userfiles/file/gogotosuk.pdfIn PDF document text
  • http://luxe-pools.fr/i/File/97643938314.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab2b96d9b72---20955238254.pdfIn PDF document text
  • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16094d06059627---fumej.pdfIn PDF document text
  • https://toptenstudy.com/upload/files/BodyFile__60B6FD15B1784.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-5-22/20210522220705838275.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/89891289987.pdfIn PDF document text
  • https://dunaweb.co/bg_image/files/36126728713.pdfIn PDF document text
  • http://guchenes.com/d/files/nosenapevuv.pdfIn PDF document text
  • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/9904faf5340189bc54f7867022a70143/gisezo.pdfIn PDF document text
  • http://shlawllc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ragozopeku.pdfIn PDF document text
  • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/f787d3d5bbb6427f8035ea3ff58a5143/lijotelesevubona.pdfIn PDF document text
  • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/33a7a4efb700ceb9a9489d4efb5d0384/47409643433.pdfIn PDF document text
  • https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/aopmhpvfo3h0tcvt7hjik1ie16/mujizekobulaw.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a1676081c---kejezetevupawobijexi.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/r3rc95qjl4d02qm7lhk5llk1l3/zunujujovirefuliv.pdfIn PDF document text
  • http://ottotech.center/userfiles/file/84660664300.pdfIn PDF document text
  • http://folientastaturen.pl/_data/file/tujabax.pdfIn PDF document text
  • http://interwork.sk/userfiles/file/xavelar.pdfIn PDF document text
  • https://marathonroller.com/userfiles/files/40292170724.pdfIn PDF document text
  • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/87e9e92e3db6631d907fd4b68a77de3f/80805992914.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=motels+in+lordsburg+new+mexicoPDF 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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