MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. The presence of numerous external URIs, many on disposable hosting, suggests a link farm designed to redirect users to malicious content. The primary malicious URL identified is https://seumenha.ru/strik?utm_term=coefficients+of+utilization+-+zonal+cavity+method, which is likely used for phishing or to serve a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 5
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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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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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External URI info PDF_URIPDF contains an external URL action
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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://seumenha.ru/strik?utm_term=coefficients+of+utilization+-+zonal+cavity+method PDF link annotation
- https://xedasijaw.weebly.com/uploads/1/3/1/4/131453620/3676930.pdfIn PDF document text
- https://sarununow.weebly.com/uploads/1/3/4/3/134366188/widelazuju-sabosudesip-nutonajib.pdfIn PDF document text
- https://xazoxudigoruxov.weebly.com/uploads/1/3/4/0/134095876/tuzulelekemidekoxuk.pdfIn PDF document text
- https://cdn.sqhk.co/felolavap/p3hbFS7/15758514981.pdfIn PDF document text
- https://cdn.sqhk.co/tumowara/HUhfif8/6063265946.pdfIn PDF document text
- https://xigefazevape.weebly.com/uploads/1/3/4/6/134632801/davofifumidorekir.pdfIn PDF document text
- https://cdn.sqhk.co/fuwufupi/figjegc/aderant_latin_espanol.pdfIn PDF document text
- https://cdn.sqhk.co/tisufupujeli/jfhbghi/pictionary_draw_and_guess_multiplayer_online.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420905/normal_60450ae137623.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375206/normal_5fd170a6aa88c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407081/normal_5fe6ec95d6574.pdfIn PDF document text
- https://cdn.sqhk.co/peretudiwi/gg4idgc/cbse_net_online_application_form_december_2018.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/kozewuposoridil/51129041619.pdfIn PDF document text
- https://dd3a609d-fcd9-461e-ae06-f7e9ec6f332d.filesusr.com/ugd/811c3f_02c3cfc083f545fbb39adf1da50f1bf7.pdf?index=trueIn PDF document text
- https://af1bea64-f5cd-41c2-a7c1-97f21c1aa057.filesusr.com/ugd/592671_04cbd2658a304b509397fdfdc1b98682.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/silubebebefuju/cloud_administrator_salary_in_south_africa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8cae1d72-a13e-4202-a0f2-12ad7abe3acc/star_wars_age_of_republic_heroes_read_online.pdfIn PDF document text
- https://ced6af22-cf5f-4df0-9cd6-2d424634d287.filesusr.com/ugd/3eed2b_20458b1a2255438a83ef158cf0a5599a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6f2712cd-d79e-42fc-8cf9-aee754195a85/1699011299.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e11fa9ab-e19f-49c3-9c17-1e5edce7d592/suguvezet.pdfIn PDF document text
- https://63995da9-74be-4895-8497-a4fa53c9845d.filesusr.com/ugd/788c84_46c6be9272bf432493dfdc7ca86a7fc0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/buponuwebi/nimibemarawimurem.pdfIn PDF document text
- https://cf268418-7549-4780-9cff-e39e61b5276c.filesusr.com/ugd/0b1cf2_06b5351c3c0845aa997ec154be8bcab5.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_off00028fcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x28FCC | 5312 bytes |
SHA-256: a2d6405cc374da970e4ab2830b935c8121d00693949b73817fce70e381e4a984 |
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font_01_sfnt_off0002a1d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2A1D7 | 12416 bytes |
SHA-256: bd35f724249e9274e0a4a494f898c84b2cc33a29d5fadf37584528746ad3e5e1 |
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