MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded URL is designed to masquerade as legitimate information about laboratory biosecurity norms to entice users to click. ClamAV and ML classifiers also flagged this file as malicious, supporting the phishing attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 4
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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://cctraff.ru/123?utm_term=normas+de+bioseguridad+laboratorio+microbiologia In PDF document text
- https://cdn-cms.f-static.net/uploads/4374838/normal_5fbc134820c20.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450512/normal_5fa745b22fc1d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464053/normal_5fa94a76d99ba.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373983/normal_5f9ad076cb5e7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392451/normal_5fb429b50c1a1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454819/normal_5faf7c0b64cf2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370785/normal_5f8952700598b.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/wilugugo/volerebuluvajo.pdfIn PDF document text
- https://s3.amazonaws.com/sefukirexuwekij/grammar_correction_worksheets_high_school.pdfIn PDF document text
- https://s3.amazonaws.com/fifomi/jubovuxilelorusas.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b8ec7823-9684-4fa8-8e64-cd7627171a5c/jarenetuzugiref.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6602e070-d64f-4b67-baad-1f3d3b7dd15c/volunteer_recommendation_letter_template.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d983.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD983 | 5368 bytes |
SHA-256: 024f1a07db0805ccc0ee0803b3f0a7a83eca3e902cda3840d5959da1d3bc3c75 |
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font_01_sfnt_off0000ebaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBAA | 10312 bytes |
SHA-256: d2efe1521e87af223aa0827d392042287685edf83f3ae6d248dbcf35e4b389a1 |
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