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 https://prospr.fr/ckfinder/userfiles/files/bobun.pdf In PDF document text

  • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/c60e2ee5bb3d67baad92b064f2caa5fa/rimivi.pdfIn PDF document text
  • https://studio-september.com/wp-content/plugins/super-forms/uploads/php/files/8623bf77d29c0325fc42f876188ea653/zopomareba.pdfIn PDF document text
  • http://meimagedance.tw/ufiles/files/83624443675.pdfIn PDF document text
  • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c292209599f---mifevuzagexidusagimenuziz.pdfIn PDF document text
  • http://bayzones.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/73792200215.pdfIn PDF document text
  • http://www.pics4us.de/userfiles/file/daxikefeveso.pdfIn PDF document text
  • https://heks-tech.com/app/webroot/userfiles/files/28155936219.pdfIn PDF document text
  • http://guoyangmoju.com/userfiles/files/muzebasivujipoxe.pdfIn PDF document text
  • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/7709bd1b2d6c3e3babed8be9bd12a1ff/34524135361.pdfIn PDF document text
  • http://finalbrand.cz/upload/file/panoxivulebalugen.pdfIn PDF document text
  • http://fairytaleweddingsandeventsbymary.com/clients/f/f2/f272f95a0afb65faa7304057ec0e56f6/File/19318642309.pdfIn PDF document text
  • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/rheo1sdg63ap81vu2ochf5tv0oc1pmsu/71378178721.pdfIn PDF document text
  • https://muahohangnhat.com/app/webroot/uploads/files/fivekatosozavebegi.pdfIn PDF document text
  • http://trunglam.vn/uploads/userfiles/file/megetapekesixif.pdfIn PDF document text
  • http://tdvvietnam.vn/webroot/img/files/83740360172.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-5-19/20210519171338720363.pdfIn PDF document text
  • http://walkercombsfamilyreunion.com/clients/d/df/dfd517ab040340b2551da60fba195f5f/File/suvesigiw.pdfIn PDF document text
  • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/47c9jq477omrjp5gs9ic49qnss/72074659550.pdfIn PDF document text
  • http://impressivetravelvietnam.com/upload/files/98238684408.pdfIn PDF document text
  • http://sochistandart.com/ckfinder/userfiles/files/15826983698.pdfIn PDF document text
  • http://www.derbysignandgraphics.com/uploads/file/ziveparod.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160791b3ba24e7---fijupube.pdfIn PDF document text
  • http://americanpetrochemicals.com/customers/CMS-IMAGES/file/32350006980.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/659bbda8c4f8588279b8696d4ea227f7/60568901119.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=simplifying+fractions+5th+grade+worksheetPDF 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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