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://nipisod.ru/award?keyword=oxford+dictionary+of+biology+free+download+pdf PDF link annotation

  • https://xemegejimeje.weebly.com/uploads/1/3/1/6/131636808/7f93b.pdfIn PDF document text
  • https://cdn.sqhk.co/xexanodu/gfjhryz/toddler_boy_hairstyles_for_curly_hair.pdfIn PDF document text
  • https://wofalexo.weebly.com/uploads/1/3/4/6/134697980/sexomuvupadikoxulud.pdfIn PDF document text
  • https://veburuja.weebly.com/uploads/1/3/0/7/130739173/bogitavebuked.pdfIn macro / runtime command snippet
  • http://sberhome.ru/what_oil_does_a_petrol_lawn_mower_takeu20mx.pdfIn PDF document text
  • http://juilopkiretlo.ru/81437413205ixe93.pdfIn PDF document text
  • https://sunutefe.weebly.com/uploads/1/3/5/3/135350425/66e12dde1.pdfIn PDF document text
  • https://cdn.sqhk.co/kajurineg/gAmozU2/teacher_appreciation_day_funny_quotes.pdfIn PDF document text
  • https://cdn.sqhk.co/litazujizime/Ndgfghe/63915139865.pdfIn PDF document text
  • http://jogubewuzamofet.iblogger.org/fimukulip.pdfIn PDF document text
  • http://idealicait.website/describe_inventory_related_report_in_tallykzr09.pdfIn PDF document text
  • http://larediwavokib.iblogger.org/wine_labels_template_free.pdfIn PDF document text
  • https://ragekadenolobo.weebly.com/uploads/1/3/0/9/130969790/6927297.pdfIn PDF document text
  • http://flash-sar.online/formato_de_entrevista_semi_estructuradas0zeq.pdfIn PDF document text
  • https://wofalexo.weebly.com/uploads/1/3/4/6/1In macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://201a0bc5-0eb3-4135-8969-828875a6b07d.filesusr.com/ugd/607883_69575676a9ba4e9487d5bf6c32c6ca4f.pdf?index=trueIn PDF document text
  • https://0a9d52b7-bae8-445b-b6d2-8eba0f02533c.filesusr.com/ugd/729231_fa4bc1f5224d47b9ae8f922a39dfe362.pdf?index=trueIn PDF document text
  • https://7d6e376e-1ee3-4df5-88c1-8d1511d419f8.filesusr.com/ugd/7dd30d_3d38cb142efd4ecf91e00c97a510c217.pdf?index=trueIn PDF document text
  • http://vimabamavarona.epizy.com/avg_antivirus_free_offline_installer_2019.pdfIn PDF document text
  • http://rukodulaban.epizy.com/2701040538.pdfIn PDF document text
  • http://gatituz.rf.gd/gefijazaz.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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