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/strik?utm_term=is+the+bank+open+on+a+sunday PDF link annotation

  • https://vefigemeg.weebly.com/uploads/1/3/4/3/134368147/kijorepiv_xunoz_jamam_jemurifosiw.pdfIn PDF document text
  • http://it50off.pro/keylab_61_mk2_manualrr3r1.pdfIn PDF document text
  • https://cdn.sqhk.co/weruvewo/ie3ZYij/gnomes_garden_3_achievement_guide.pdfIn macro / runtime command snippet
  • http://watertea.space/51043203295ninib.pdfIn PDF document text
  • https://xasedomag.weebly.com/uploads/1/3/1/0/131071243/d3a64.pdfIn PDF document text
  • https://cdn.sqhk.co/nasanoroge/3hgI9fH/glueing_acrylic_sheet_to_wood.pdfIn PDF document text
  • http://com-signto2.xyz/nixutulofovew7mbr8.pdfIn PDF document text
  • https://cdn.sqhk.co/jubawiwa/BPgegfj/real_boxing_2_apk_mod.pdfIn PDF document text
  • https://rokolumer.weebly.com/uploads/1/3/0/9/130969153/baxupipe.pdfIn PDF document text
  • https://sebikiwar.weebly.com/uploads/1/3/5/9/135962157/8326402.pdfIn PDF document text
  • http://sparzha.club/what_kind_of_oil_filter_does_a_2009_toyota_corolla_take5ntq5.pdfIn PDF document text
  • https://gamabisage.weebly.com/uploads/1/3/2/6/132681080/0b30bb0.pdfIn PDF document text
  • https://cdn.sqhk.co/tuzevawu/ibggRUL/44171014871.pdfIn PDF document text
  • http://it50off.pro/keylab_61_mk2_manIn 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/e1664204-3d9e-4c9c-a071-eee1a2ac0f6e/pezomeruxebukade.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94e7fb4a-69ea-4ac7-b1de-247928433863/twentieth_century_harmony_by_vincent_persichetti.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1691da32-9f97-433a-88df-cb507a734bd4/star_wars_d20_saga_character_sheet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f81c36c-505b-4ea4-93f5-a1d3dd035cfb/win_10_powershell_commands.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/af02ec1b-09f5-4a45-8447-4777728b31c0/libro_de_historia_de_quinto_grado_de_primaria_paco_el_chato.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4dc5012f-63f3-40e1-84a0-c81ac32a1f80/dideritumenitiposof.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2ffc8749-5eca-47c0-bf7d-fee0c1099ca7/93379070948.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d829c98d-e678-4d97-98de-3380abf68b74/lugisakezason.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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