Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://pixomot.ru/uplcv?utm_term=physical+pharmaceutics+3rd+semester+notes PDF link annotation

  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a00935db8d8---33162188953.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079755dc69e4---vubamuvovudefude.pdfIn PDF document text
  • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/4j22s3mpfn025vipsfcqqlv1u2/20242988364.pdfIn PDF document text
  • http://anm-av.de/uploads/files/72400488242.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/e3rpt972epgjqpau6o96hp3s93/79251533448.pdfIn PDF document text
  • https://christianklein.eu/Quansis/ckfinder/userfiles/files/72850589812.pdfIn PDF document text
  • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc8066aaa60---vutam.pdfIn PDF document text
  • http://ambulatorioveterinariocamali.com/userfiles/files/xabuwa.pdfIn PDF document text
  • http://towa-aaa.jp/userfiles/file/61756070783.pdfIn PDF document text
  • http://140.121.161.111/ckfinder/userfiles/files/55731589730.pdfPDF link annotation
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c0fc0843d2d---paxezegadubalowinuluvom.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/voqd67iul7ids5f2us66b7fb32/tirurenaferarukuk.pdfIn PDF document text
  • http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/88424501189.pdfIn PDF document text
  • https://emenu.hu/editor_up/senirabawamexadanijesafi.pdfIn PDF document text
  • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3bfc8806f3---naveziketebezuru.pdfIn PDF document text
  • http://comp-art.ru/userfiles/file/56695127796.pdfIn PDF document text
  • http://albino-pitti.com/pub_img/file/befirofotawalupur.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16071eb2a14eac---86714877379.pdfIn PDF document text
  • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/6407165299.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/e458uae3oma1pt1i0hb03mkem6/dokepubedolulotabuvuzitol.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607410a71895f---fonogefofakoxufukivizodo.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ffefd5df44---54177838884.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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