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://pistant.ru/pbw?utm_term=grammar+practice+workbook+grade+7+answer+key PDF link annotation

  • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/muzabifusugol.pdfIn PDF document text
  • https://sifirugosiwoxam.weebly.com/uploads/1/3/1/3/131384024/2537f7755b77.pdfIn PDF document text
  • https://wosiwimobej.weebly.com/uploads/1/3/1/1/131164223/9644027.pdfIn PDF document text
  • https://mawegovif.weebly.com/uploads/1/3/5/3/135319367/32dcf4.pdfIn PDF document text
  • https://dafepigog.weebly.com/uploads/1/3/4/6/134605944/gujusisetagutub-mebomepikadena-kujezuwebux.pdfIn PDF document text
  • https://ridejotewofo.weebly.com/uploads/1/3/5/3/135314456/legigipiminet-rajibirito-menuvesoboboze-dubis.pdfIn PDF document text
  • https://kazugimopizefew.weebly.com/uploads/1/3/1/4/131406381/jepivukorunewu.pdfIn PDF document text
  • https://dunefofitibo.weebly.com/uploads/1/3/4/6/134608320/wexaditeborasomuj.pdfIn PDF document text
  • https://fozirufimagez.weebly.com/uploads/1/3/0/9/130969558/375162.pdfIn PDF document text
  • https://gobodanugamo.weebly.com/uploads/1/3/4/8/134862857/8942345.pdfIn PDF document text
  • https://vedirivokezijil.weebly.com/uploads/1/3/4/1/134108565/39a2b39ba72.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc37a207-846a-400c-892a-e8eef3cf9bfc/tatuwageri.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/16589149-0c56-4aa2-a99c-4084c5dc5a97/wezimupuvojunef.pdfIn PDF document text
  • http://bawamotijeku.pbworks.com/w/file/fetch/144449757/que_paso_ayer_2_banda_sonora.pdfIn PDF document text
  • http://siwuromo.pbworks.com/w/file/fetch/144425211/kia_sorento_workshop_manual.pdfIn PDF document text
  • http://lewiwebula.pbworks.com/f/what_do_the_codes_mean_on_the_pulse_point_app.pdfIn PDF document text
  • http://xozojonurom.pbworks.com/w/file/fetch/144874407/dorekob.pdfIn PDF document text
  • http://mijatonevu.pbworks.com/w/file/fetch/144791136/how_can_embryonic_development_be_used_as_evidence_for_evolution_apex.pdfIn PDF document text
  • http://rozeluf.pbworks.com/w/file/fetch/144973386/cmd_end_process.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/31353bb6-c407-446e-95ba-7f73f85aac3c/how_to_get_free_booster_rainbow_six_siege.pdfIn PDF document text
  • http://natofuke.pbworks.com/f/66268681393.pdfIn macro / runtime command snippet
  • http://minuwaxiper.pbworks.com/f/vofipifofiv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5cfa3b24-91e7-488a-8e32-5146de31e15c/can_you_resell_tickets.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
  • https://uploads.strikinglycdn.com/files/In macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text

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