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
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://jumiwimov.ru/award?keyword=adjective+clause+worksheet+pdf PDF link annotation

  • https://zorusijumabek.weebly.com/uploads/1/3/4/8/134851431/405123b27f6690d.pdfIn PDF document text
  • https://cdn.sqhk.co/xibetevoxaj/hm4jd8g/52310191100.pdfIn PDF document text
  • https://fewefemuge.weebly.com/uploads/1/3/4/3/134372507/fewojajonesumisomor.pdfIn PDF document text
  • https://cdn.sqhk.co/majukedow/phjmviI/dovafidetuxumelezaf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4496582/normal_603bf489431c0.pdfIn PDF document text
  • https://cdn.sqhk.co/falugojafat/Gheliih/dora_and_friends_into_the_city_last_episode.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4424026/normal_5fe002d8d86a4.pdfIn PDF document text
  • https://cdn.sqhk.co/xajamenujo/PtjdEVN/65832005110.pdfIn PDF document text
  • https://cdn.sqhk.co/regisanozoxo/ihia8jx/crockpot_chicken_stew_and_dumplings.pdfIn PDF document text
  • https://cdn.sqhk.co/dedesonor/KjccX6b/78850064819.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4423429/normal_5febbfb29ae49.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406806/normal_5fd6232cc0798.pdfIn PDF document text
  • https://cdn.sqhk.co/xubuzivo/hahiDhj/ripegidofomorez.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4426422/normal_5ff1ca61ee591.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369332/normal_6053b649810de.pdfIn PDF document text
  • https://cdn.sqhk.co/xukigipeduve/8KAkjhh/how_to_obtain_police_accident_report_nyc.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://8bd0dbf5-62e0-4684-a95a-1d9666dfa34a.filesusr.com/ugd/e71694_e7696910233b439a9285ef618b5d8446.pdf?index=trueIn PDF document text
  • https://ab2ac9d4-4772-4872-829d-c19fde0a4f90.filesusr.com/ugd/b919b3_04c8f0eb5680448eb41ded57229db132.pdf?index=trueIn PDF document text
  • https://b9eb3541-094c-4606-b101-17c2291fd6e1.filesusr.com/ugd/a18601_78c30c929ce9437d9125096ef912e37e.pdf?index=trueIn PDF document text
  • https://5a4e7950-e122-4b3c-9cf7-894e7f5b1216.filesusr.com/ugd/76aeb6_56a4902827504f6080ef191cda7e6d65.pdf?index=trueIn PDF document text
  • https://8aefc570-8454-48c3-bb63-d4d1067b7ce0.filesusr.com/ugd/5c9621_c98c2a56df5948cbb992007e8e60fbb7.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text

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