MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious content. It contains numerous embedded URLs, with several pointing to disposable domains and identified as part of a link farm, suggesting a phishing or malware distribution attempt. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating the document is designed to host multiple links on potentially untrusted hosting. No scripts were extracted, but the overall structure and URL distribution strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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 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://jacksth.ru/strik?utm_term=how+to+say+hello+in+american+slang
- https://kakoxisowi.weebly.com/uploads/1/3/4/3/134358665/zorivu.pdf
- http://openplafond.xyz/26047579488jrbdl.pdf
- https://bipokedofep.weebly.com/uploads/1/3/5/3/135322207/7254456.pdf
- https://jubewujug.weebly.com/uploads/1/3/4/6/134653216/mataxubunu_gipawo_gilafop.pdf
- http://makamar.online/direito_civil_esquematizado__carlos41p1b.pdf
- https://falopizesolirod.weebly.com/uploads/1/3/1/3/131379111/rurar.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://todamabofadufod.epizy.com/bacterial_biofilms.pdf
- http://pumumiz.epizy.com/recent_advances_in_structural_engineering.pdf
- http://gabifuzof.rf.gd/28937751651.pdf
- http://gagonunanu.epizy.com/define_psychosis.pdf
- http://texatopewewew.epizy.com/arduino_pro_micro_bootloader.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e1ee.bin2a60df4690077dd8ce213bccb6f946c8ffd283084299318d27bb706e378500f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1EE | 5368 bytes |
font_01_sfnt_off0000f41b.bin3e642677738663fe066cc0c48c8037576c55fcc4e0b274957c2938a7691b1451 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF41B | 10784 bytes |
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