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://druttle.ru/award?keyword=aguacate+hass+pdf PDF link annotation

  • https://cdn.sqhk.co/zenekukera/S1Degce/medieval_idle_tycoon_idle_clicker_tycoon_game.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4492246/normal_601bb6e782d17.pdfIn macro / runtime command snippet
  • https://cdn-cms.f-static.net/uploads/4413977/normal_601fb65392557.pdfIn PDF document text
  • https://cdn.sqhk.co/pivokazi/Tia0haa/dadefasoworofegumopup.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463010/normal_603c7d058f17f.pdfIn PDF document text
  • https://cdn.sqhk.co/pobopuwubox/idhcVjj/44312338403.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368479/normal_5ff2796f4db51.pdfIn PDF document text
  • http://sluzhba1.net/waterproof_android_phones_20179d1v7.pdfIn PDF document text
  • https://litalegikuga.weebly.com/uploads/1/3/4/5/134587653/9067d2.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4458417/normal_5ff1136a3ca1b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386330/normal_6042e52f1a91a.pdfIn PDF document text
  • https://puzuzabijil.weebly.com/uploads/1/3/2/8/132814257/bewakikumidof.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446036/normal_6013bdc5d21f4.pdfIn PDF document text
  • https://toroborelap.weebly.com/uploads/1/3/4/8/134867907/63c1254453fe75.pdfIn PDF document text
  • https://cdn.sqhk.co/vewukiziwemi/dTcii1V/28602391038.pdfIn PDF document text
  • https://cdn.sqhk.co/jigavozef/ngij8hG/76485154310.pdfIn PDF document text
  • http://meriline.store/japanese_kanjivvs9h.pdfIn PDF document text
  • https://lenexemumuvag.weebly.com/uploads/1/3/1/4/131438583/jefirasedowaju-zododatubasi-buvokujujenej.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368736/normal_6027b86d1f764.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4407994/normal_5ff7962b145b8.pdfIn PDF document text
  • https://cdn.sqhk.co/zenekuIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/365d74e7-e297-4a50-9338-78667d0af394/cmd_commands_windows_10_hacks.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d27a70d-a1ac-4564-86ed-9aa401ab8741/vefajezu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df721b5e-74bf-4616-a61f-cac424080db7/wapujin.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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