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://leonvi.ru/strik?utm_term=mix+2+words+level+159 PDF link annotation

  • https://cdn.sqhk.co/salusasopuvi/dghpja9/zoo_animal_coloring_pages.pdfIn PDF document text
  • https://cdn.sqhk.co/lilavokolet/jcieid1/jupufuzisovuf.pdfIn PDF document text
  • https://bazulerijodinib.weebly.com/uploads/1/3/1/8/131856415/207892.pdfIn PDF document text
  • http://biwedujurar.mywebcommunity.org/zamawidalimadixibipaja.pdfIn PDF document text
  • http://wovuwukotuvoxi.mygamesonline.org/castrol_edge_td_5w40.pdfIn PDF document text
  • https://lipisowuke.weebly.com/uploads/1/3/5/3/135387266/gezojoper-xizatipu.pdfIn PDF document text
  • http://kolagozisil.mywebcommunity.org/xopemuwufafesojujavidiki.pdfIn PDF document text
  • http://mumijivamivaxij.medianewsonline.com/how_to_remove_windows_powershell_virus.pdfIn PDF document text
  • https://cdn.sqhk.co/sotatixorawi/jehEggs/on_my_block_cast_ages_season_3.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://d45380bd-a93d-4ef2-b2bd-4c7806d1f6db.filesusr.com/ugd/5d2cf3_63ef7a1fad014b51a753f9b3289c4f5c.pdf?index=trueIn PDF document text
  • https://9a89a7da-ede3-42eb-a537-7416be21eb2d.filesusr.com/ugd/aaaf79_832783e20d994d8c81090acd30fef6b3.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/d201561b-48f2-404b-9a79-c99c1720255c/3060854551.pdfIn PDF document text
  • https://54179944-c6a3-49b3-9462-5d1939b6aff2.filesusr.com/ugd/49f5ef_332d3ab19216493791b8c656d6a21d58.pdf?index=trueIn PDF document text
  • https://c3a7a64c-5591-430b-94d7-c2eadfdf3523.filesusr.com/ugd/966478_9e73e731b8804105b643507e63ffd354.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/a73a5718-de60-4125-9e2e-1ee10f5610c0/what_are_life_skills_for_adults.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e203ae6d-3ce7-4ed4-89cc-63a5eebcb0c7/what_vpn_protocol_is_best.pdfIn PDF document text
  • https://35e1cc1d-5f6c-4a41-9b1b-b9ae8dddc97a.filesusr.com/ugd/351eee_970572d56e9d415a86ee5c91abb9ce0c.pdf?index=trueIn PDF document text
  • https://101c3d73-5e22-4da1-a203-a3a2a794ce88.filesusr.com/ugd/69a512_6347a7af3ca94b519618179f0ebd8424.pdf?index=trueIn PDF document text
  • https://50037ee0-0691-4a53-bdc2-b2f8f795cfa6.filesusr.com/ugd/b41a9a_fdfa92eddd6f4b13a272b3f9b7f426cc.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/0edbd855-5cb2-466d-aa16-38840742e38d/70198690171.pdfIn PDF document text
  • https://441dbedc-201a-49d7-bb2a-292980023e2b.filesusr.com/ugd/473728_d0caaa2e70f64482b8265acfedd73ac7.pdf?index=trueIn 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/filesIn macro / runtime command snippet
  • http://scripts.sil.org/OFLIn PDF document text

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