Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://maypoin.ru/award?keyword=symmetry+worksheets+pdf PDF link annotation

  • https://gijedilegin.weebly.com/uploads/1/3/1/3/131380969/0410e900af74.pdfIn PDF document text
  • https://babixedijifaz.weebly.com/uploads/1/3/5/3/135385025/8724598.pdfIn PDF document text
  • http://kimidenexikox.getenjoyment.net/past_simple_and_past_continuous_story_exercises.pdfIn PDF document text
  • http://nalowisep.22web.org/advanced_manager_pro_apk_apkpure.pdfIn PDF document text
  • https://xizenebijebis.weebly.com/uploads/1/3/2/3/132303300/xiduvitezib_lupewufevipepa_liridelowo_kiref.pdfIn PDF document text
  • https://fikanofuzak.weebly.com/uploads/1/3/1/4/131438747/mozeg.pdfIn PDF document text
  • http://fumizudo.sportsontheweb.net/japanese_alphabet_writing_practice.pdfIn PDF document text
  • http://vuwevemup.22web.org/addition_worksheets_for_grade_2.pdfIn PDF document text
  • http://nutunajika.66ghz.com/good_hinge_answers.pdfIn PDF document text
  • https://mumixiginuwogi.weebly.com/uploads/1/3/4/7/134752923/jawivixi.pdfIn PDF document text
  • https://bafuvigugasud.weebly.com/uploads/1/3/5/3/135308410/xanewiwikarefi.pdfIn PDF document text
  • https://vulefewaxamovu.weebly.com/uploads/1/3/3/9/133997320/gekazusozi.pdfIn PDF document text
  • https://lomofatawepap.weebly.com/uploads/1/3/4/5/134599642/a2bc7.pdfIn PDF document text
  • https://maypoin.ru/awPDF link annotation
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://288c7b4b-0494-48f6-8ee2-9dd519b96b0a.filesusr.com/ugd/a107db_2a20050140874a36b3398997f54a6274.pdf?index=trueIn PDF document text
  • http://jefitanebigovun.rf.gd/adobe_after_effects_infographic_template.pdfIn PDF document text
  • https://s3.amazonaws.com/nawosineromigi/shark_navigator_lift-away_deluxe_nv360_upright_vacuum_parts.pdfIn PDF document text
  • https://s3.amazonaws.com/nakuzafol/20835255297.pdfIn PDF document text
  • http://zorikeroz.onlinewebshop.net/divejusodu.pdfIn PDF document text
  • https://s3.amazonaws.com/satuja/yeti_bike_size_guide.pdfIn PDF document text
  • https://aed022ca-8a9d-452d-9022-56a74a585a14.filesusr.com/ugd/4d548e_8d92255946b946bbb4e62a76df046445.pdf?index=trueIn PDF document text
  • https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_65f3cd384cb94940855b0e0ba5a46896.pdf?index=trueIn PDF document text
  • https://05790d5e-93e9-4545-bcc4-99c37f081c18.filesusr.com/ugd/bff4d5_a4622d45304744bfb38f405cbe47acab.pdf?index=trueIn PDF document text
  • http://fidalanono.myartsonline.com/pizexij.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://scripts.sil.org/OFLIn PDF document text

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