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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://ponafet.ru/strik?utm_term=the+coaching+habit+7+questions PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4384295/normal_602a25a63ce28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420245/normal_6041959c8dcfa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444374/normal_601ce5ad51cf8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4475987/normal_5fd10397bf464.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4477369/normal_600fa1fcb67d7.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4366063/normal_5ffdfb214bb97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4445745/normal_5fdb8c215eab3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4451752/normal_60639216aea88.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://f33d1b56-f518-462b-b61f-c1b5c1ba661c.filesusr.com/ugd/1c44ce_6256c24fa0cc46cc82f30b76359b9852.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/e371b2c7-7d4b-47fc-adc4-5e4355c5144d/how_to_restart_cisco_router_using_cmd.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b3cd3b14-5094-46c8-ae06-f17750093f23/10472863267.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d8f5dac-f4c6-43a5-b0dc-9fd4f55e8a49/25928742665.pdfIn macro / runtime command snippet
  • https://uploads.strikinglycdn.com/files/34234bd4-de39-4dc3-891f-16595f6f1ce6/dijaxufunumome.pdfIn PDF document text
  • https://02bc4616-4eae-4b38-b2c9-0e654f754ee0.filesusr.com/ugd/069df5_b017003f7d6349749ca9966c86eb6220.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/jonora/sorting_odd_and_even_numbers_worksheet_ks1.pdfIn PDF document text
  • https://s3.amazonaws.com/lewuli/ravatesemovaragitufupo.pdfIn PDF document text
  • https://920f4c01-5fd6-4c40-8b27-b99972fecb60.filesusr.com/ugd/d63aaf_e2da3cd7abe94eb6a798aa531a56e844.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/7170f2d3-88f9-4653-952d-9e0313dac43a/harry_potter_and_the_sorcerers_stone_summary_chapter_1.pdfIn PDF document text
  • https://s3.amazonaws.com/mojivikapeti/ferakusufagumopepipakivi.pdfIn PDF document text
  • https://s3.amazonaws.com/kagedatabujo/samsung_frp_bypass_apk_5._1._1.pdfIn PDF document text
  • https://s3.amazonaws.com/wewuxuviwar/divirinomipupuzufulal.pdfIn PDF document text
  • https://aa3bb5c3-2bd4-4791-9e2a-6e31d5009b04.filesusr.com/ugd/60e703_36788dd192b44070b4277fdaa588e280.pdf?index=trueIn PDF document text
  • https://b7d3a0ae-8059-487b-8826-088776693174.filesusr.com/ugd/8d23e4_98ce46af12794c61be310c322adeca89.pdf?index=trueIn PDF document text
  • https://2ed9768e-82a7-41f7-bc91-4b86d8d7aa0f.filesusr.com/ugd/bdbd91_7cdca80663194d40bde30138676db3fa.pdf?index=trueIn PDF document text
  • https://0108a07e-94d6-443d-bfa7-575dd38852ad.filesusr.com/ugd/756a01_f25a807ae3224909ad18eab372093ea5.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
  • https://uploads.strikinglycdn.com/files/b3cd3b14-509In macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text

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