MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable domains, indicating a link farm or SEO spamming operation. The primary URL, https://vilenefex.ru/strik?utm_term=the+way+things+work+synonym, suggests a lure related to search engine optimization. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for distributing further malware or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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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://vilenefex.ru/strik?utm_term=the+way+things+work+synonym PDF link annotation
- https://vevavosabiwebe.weebly.com/uploads/1/3/4/3/134349804/4cce3f4ac6.pdfIn PDF document text
- http://rigametovezo.22web.org/68453941435.pdfIn PDF document text
- http://wivikaxebox.medianewsonline.com/ocean_of_safe.pdfIn PDF document text
- http://lubevos.scienceontheweb.net/what_is_computational_thinking_in_education.pdfIn PDF document text
- http://tazikuruwuwozu.22web.org/sufirepuzuviw.pdfIn PDF document text
- http://bajoreto.sportsontheweb.net/electronic_devices_and_circuits_notes_free_download.pdfIn PDF document text
- http://nigemutekilum.mypressonline.com/ejercicios_de_angulos_notables_en_la_circunferencia.pdfIn PDF document text
- https://zumuwezejulo.weebly.com/uploads/1/3/1/4/131455722/raposal.pdfIn PDF document text
- http://negedibomul.sportsontheweb.net/bionaire_heater_remote_control_replacement.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://pizuzol.onlinewebshop.net/62761788188.pdfIn PDF document text
- http://muropep.epizy.com/beginner_python_projects_with_source_code.pdfIn PDF document text
- http://pusapovewazigu.onlinewebshop.net/xuxepa.pdfIn PDF document text
- https://58960a86-a3f4-42d8-866e-ee2cf32068b1.filesusr.com/ugd/1ad962_527ec4a290a94add8fb50a446a769b3a.pdf?index=trueIn PDF document text
- http://bojepudadadax.atwebpages.com/xofonetepakewa.pdfIn PDF document text
- https://feedbc21-cb93-402c-9ae2-3476589645d2.filesusr.com/ugd/f3ecbe_e652f459569342579799edd11fe1263b.pdf?index=trueIn PDF document text
- http://vagilamiporaw.epizy.com/59617255855.pdfIn PDF document text
- http://nimanexobubibub.onlinewebshop.net/lacrosse_clock_instructions.pdfIn PDF document text
- https://29474179-7c7c-44ae-84e0-3c37792f2e25.filesusr.com/ugd/7f817d_1ea459cf3be4401789287e1361a8c6b6.pdf?index=trueIn PDF document text
- https://29aa9d28-cc9d-45fc-8d86-3718b5881c84.filesusr.com/ugd/74c34a_c032a320b607473eb34d3a745a344f59.pdf?index=trueIn PDF document text
- https://538d8494-0c7d-401a-b890-0485f6bc7bca.filesusr.com/ugd/29c71c_c47275d05e3e456c9937545aef623a11.pdf?index=trueIn PDF document text
- http://vugifoxo.epizy.com/vojizekipafodagakokom.pdfIn PDF document text
- https://a0d2adcf-75bd-42a9-a42a-c23e1c6e9e1a.filesusr.com/ugd/85c99c_9847ea3befe34ba89e984b6def7deea0.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010cff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CFF | 5272 bytes |
SHA-256: 7a00c0a4a76fc5c5ec5ad6e755aa47ee17d688c7d2c7b33e4d9fb3842ab0b980 |
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font_01_sfnt_off00011ee1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EE1 | 11832 bytes |
SHA-256: b6106af2e9b29e145d19c9eb4586ca9ecd7ddd7c70d56ec20ab44c45dbf3c7f9 |
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font_02_sfnt_off00014666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14666 | 16036 bytes |
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940 |
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