MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to contain a lure related to homework, suggesting a phishing or social engineering attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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/strik?utm_term=why+didn%2527t+klutz+any+homework+on+saturday In PDF document text
- https://cdn.sqhk.co/guxuboru/KehiHbR/coloring_football_player_pixel_art_by_numbers_band.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411921/normal_604220b4f07e8.pdfIn PDF document text
- https://cdn.sqhk.co/dorejewibiz/PLghcA8/32746723306.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484835/normal_605549efe2c7c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402720/normal_6010b3de9de60.pdfIn PDF document text
- https://cdn.sqhk.co/dokukavifig/Xhdhage/bilujosuvilibaxumazew.pdfIn PDF document text
- http://derewopenila.22web.org/chogada_tara_full_audio_song_pagalworld.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367911/normal_60518e1825fa2.pdfIn PDF document text
- https://cdn.sqhk.co/toledexipez/ihjeS7Z/marapets_goals_guide.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://wewugibujo.epizy.com/supernatural_definition.pdfIn PDF document text
- https://c2c662fa-00ac-4c69-bf5d-04da7d6c99e2.filesusr.com/ugd/9b33c5_827532ce8b664090bf755eba85f52b83.pdf?index=trueIn PDF document text
- https://4d75d3c9-3a4d-4df6-84ab-e48b83d723e5.filesusr.com/ugd/cdb50c_0ba5c945d6684d8f948d9fc3de96a452.pdf?index=trueIn PDF document text
- http://febefijawifuja.rf.gd/lixetox.pdfIn PDF document text
- https://s3.amazonaws.com/mipizaju/hubspot_contextual_marketing_exam_answers.pdfIn PDF document text
- https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_42960230e7634c5dbfd3093573909816.pdf?index=trueIn PDF document text
- https://4b4ea461-5266-411b-8735-d5290551f550.filesusr.com/ugd/7fedcf_3aa242304f3c4d08b4ab5f80f3a78871.pdf?index=trueIn PDF document text
- https://6762652a-e869-40f3-960d-1446d4066230.filesusr.com/ugd/55e6b1_99940d8f21524ecc904af33e6f49297a.pdf?index=trueIn PDF document text
- https://fb075467-9d00-46c6-93ac-2b777f5e584b.filesusr.com/ugd/8bcd66_13b4bcefe5ca489e9e695099f368e99c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tamobalasu/adolescent_development_book.pdfIn PDF document text
- http://bebebotiv.epizy.com/stanley_450_amp_jump_starter_how_to_use.pdfIn PDF document text
- https://23da7c74-6e14-424a-b22a-901aa35eafb1.filesusr.com/ugd/9cc572_52751aceeb004da0b7f026fb7518308a.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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001aa15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AA15 | 5420 bytes |
SHA-256: 951f0a0ede0a97a75bd3073d6ca1a6ca1e3d3e8f5b93730da82f252fdf76a565 |
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font_01_sfnt_off0001bc83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BC83 | 10676 bytes |
SHA-256: 6d3aa39e11af9ad586f0a336215e3471c15a4344affac4f6b08bf1d5944bd256 |
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