Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD
  PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
• 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.
• Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
  One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
• 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://yafferge.ru/123?utm_term=adele+songs+someone+like+you In PDF document text

  • http://nujagexurej.medianewsonline.com/kiterezisuga.pdfIn PDF document text
  • http://goodnatural.space/bosobagariredunogowaj6a21n.pdfIn PDF document text
  • http://golomashvanna.xyz/s20_fe_vs_s9_sizewy8bd.pdfIn PDF document text
  • http://mmmuuuue.space/by_the_way_bass1xypb.pdfIn PDF document text
  • https://cdn.sqhk.co/lunapolakezo/gjxjjzk/verizon_fios_ont_inside_or_outside.pdfIn PDF document text
  • http://desokore.medianewsonline.com/tatug.pdfIn macro / runtime command snippet
  • http://creamwalls.online/marlin_60_vs_ruger_10_22_reliability910it.pdfIn macro / runtime command snippet
  • http://lamovingcompany.com/buwikejiwusekxub8.pdfIn PDF document text
  • http://appletopshop.ru/nodotuxknabc.pdfIn PDF document text
  • https://cdn.sqhk.co/fuluzezufe/rtMjjic/architects_salary_guide_2018.pdfIn PDF document text
  • http://kzrovk.xyz/one_thousand_and_one_nights_bookwr28p.pdfIn PDF document text
  • http://stroymarketmetal.ru/bahubali_2_tamil_movie_ringtonecr205.pdfIn PDF document text
  • https://cdn.sqhk.co/ruvajuvewuj/iaiaSDq/rally_championship_game_pc.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://viwaneb.rf.gd/artritis_reumatoide_guia_rapida.pdfIn PDF document text
  • https://93dbb2ad-f1e8-4c6c-adfd-2ef134399473.filesusr.com/ugd/df4650_b5441d3c71114f7791241f4f4816897c.pdf?index=trueIn PDF document text
  • http://judiserod.onlinewebshop.net/presentation_skills_notes.pdfIn PDF document text
  • http://jofikuv.atwebpages.com/automating_active_directory_administration_with_windows_powershell.pdfIn PDF document text
  • http://zisajas.epizy.com/puvotiwosuwe.pdfIn macro / runtime command snippet
  • https://b70645e9-42d7-44c6-80f2-f165c8819e8d.filesusr.com/ugd/3f1130_4946c6ed2f1c4c959da7412073edc5bf.pdf?index=trueIn PDF document text
  • https://93bb5028-8b17-4c47-8ab9-f46a024b0e86.filesusr.com/ugd/041612_bdf8939cee40442b8ace47314ab7642b.pdf?index=trueIn PDF document text
  • http://nokarox.rf.gd/car_mileage_correction_software_free.pdfIn PDF document text
  • https://b5f169ef-6bcf-4d19-a24b-32bdc9dd7a5f.filesusr.com/ugd/2e79a6_2d7a3ecbd6cd466e84b2dad371229d3b.pdf?index=trueIn PDF document text
  • https://7c50ec62-1ece-451b-b03c-4788199016cf.filesusr.com/ugd/635f3c_cf3cec3a1e474865ac59e019633cfdf9.pdf?index=trueIn PDF document text
  • http://tejejobosal.epizy.com/balizazixuzanitibalika.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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