Malicious PDF — malware analysis report

Heuristics 5

• 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 https://gokaletuwatuni.weebly.com/uploads/1/3/6/0/136098233/4dd85cbfb0c.pdf In PDF document text

  • https://konferencia2012.medius.sk/userfiles/file/mupodefaj.pdfIn PDF document text
  • http://coca-colalife.eu/userfiles/file/50803326697.pdfIn PDF document text
  • https://piok.hu/images/files/54905756459.pdfIn PDF document text
  • http://liceoadultos.juniorcollege.cl/userfiles/files/295503640.pdfIn PDF document text
  • https://jefelowomiwit.weebly.com/uploads/1/3/4/5/134599681/duraxoludedoga.pdfIn PDF document text
  • http://eshop-kocicinadeje.cz/files/file/96193834675.pdfIn PDF document text
  • https://htcpost.vn/vietpost.vn/img_content/file/63567035528.pdfIn PDF document text
  • https://nic-irq.com/userfiles/files/63100890566.pdfIn PDF document text
  • https://wupirevedog.weebly.com/uploads/1/3/4/7/134709422/4389393.pdfIn PDF document text
  • https://yukkumpulgroup1.com/contents/files/mipubabula.pdfIn PDF document text
  • https://luxm.pl/userfiles/file/63419320151.pdfIn PDF document text
  • https://bezamefiparafu.weebly.com/uploads/1/3/4/6/134665790/lexuwiwat-xerita-remipawizemik.pdfIn PDF document text
  • https://sarororutix.weebly.com/uploads/1/4/1/6/141606884/zurakosironej.pdfIn PDF document text
  • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/64626680690.pdfIn PDF document text
  • http://mdbim.pl/ubezpiecz/obrazy/file/zovapugabiwisujawuwer.pdfIn PDF document text
  • http://ping-property.com/user_img/files/bobikozegidemegafo.pdfIn PDF document text
  • http://oapsirs.com/wb3?utm_term=b.s.t.c%20syllabus%202019%20pdfPDF link annotation
  • http://www.bitstream.comIn extracted file (font_00_sfnt_off0000b377.bin)
  • 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

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