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://druttle.ru/123?utm_term=30+minute+seder+haggadah+pdf PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4461511/normal_5ff1dcd321b03.pdfIn PDF document text
  • http://sfhgfje5df.xyz/siruthai_aararo_aariraro_ringtonepito8.pdfIn PDF document text
  • https://cdn.sqhk.co/sixojifez/fifgdEs/zoporopanapu.pdfIn PDF document text
  • http://remont-kholodilnikov.website/80350018811q7b2y.pdfIn PDF document text
  • https://cdn.sqhk.co/gefimiwotux/cjhie3H/loop_taxi_mod_apk_android_1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410731/normal_602497bad858b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376609/normal_603a5e967765c.pdfIn PDF document text
  • http://ygrash.website/bekibal4mlhj.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://4a7d9d2b-1d67-446c-8d6d-bdd3043d1f60.filesusr.com/ugd/c3d078_a1e1d85402894ea59ae6accdc6db2ca8.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/de4a6500-567c-4bee-8b40-828df8ce285c/24061124301.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d395b71a-d13e-4f5e-94da-5281197e531c/hp_officejet_7612_wide_format_e-all-in-one_printer_price.pdfIn PDF document text
  • https://e590c0d9-b694-44fb-9862-47327b30d8b0.filesusr.com/ugd/89363e_29ce16142fe242469b654be444389951.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e8becaa-aa80-494a-9968-635987e7e062/70769620305.pdfIn PDF document text
  • https://e8b83640-91e4-44a0-a69f-c2468797902f.filesusr.com/ugd/ee4a13_fba0dc405a314c08bfb9634479fd56ce.pdf?index=trueIn PDF document text
  • https://dbb1fad9-9c05-458f-9e32-bc0b7f65d7ec.filesusr.com/ugd/451461_8f7c8b6c270d42edaaaff43594d31b5f.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/4788fb22-2f39-4b5e-a60a-6b3b7626cf20/76351518112.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5ea5456-32c0-4910-8c4e-244932c71e52/city_of_thieves_book_review.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01184126-a4ce-4e97-b507-b4d0cba44c09/kebodidaxajonaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c548bd34-7631-4730-947e-fd21ef06b629/machine_learning_con_python_raschka.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/30e29c4f-1e88-4158-ac73-6631e75c640c/how_to_put_my_delta_crib_together.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a644e08c-9ede-4770-9057-16f1e6ca54da/79493478715.pdfIn PDF document text
  • https://dc58184e-bbba-402a-8e08-a55d552c8f3f.filesusr.com/ugd/0ebc1f_3aad1939a20843da81e526a6745a2712.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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