MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs pointing to potentially malicious domains, suggesting it acts as a lure to phishing sites or malware downloaders. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by identifying the PDF as a link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://infrive.ru/uplcv?utm_term=gaussian+distribution+entropy PDF link annotation
- http://weorderfood.com/uploads/files/suzujajubetobuj.pdfIn PDF document text
- http://zjgyuanhong.com/v15/Upload/file/20219262143138663.pdfIn PDF document text
- http://yztools.com/images/upload/File/fatuxugimaremanupavurasur.pdfIn PDF document text
- http://clairerolo.com/userfiles/file/mudinaxulubavur.pdfIn PDF document text
- http://anpo.vn/upload/files/52010797564.pdfIn PDF document text
- http://www.mostenpo.jp/userfiles/files/39886877207.pdfIn PDF document text
- https://cqc-material.com/app/webroot/userfiles/files/lonewunu.pdfIn PDF document text
- https://artgallery.devctn.com/ckfinder/userfiles/files/23480827887.pdfIn PDF document text
- http://tuttotop.com/userfiles/files/21387892070.pdfIn PDF document text
- http://apsencollege.org/test/fckeditor/file/85950428899.pdfIn PDF document text
- http://akvari-um.ru/userfiles/file/fenulukegijaredos.pdfIn PDF document text
- https://mb-classic-service.de/userfiles/file/nemegex.pdfIn PDF document text
- http://naosgym.com/userfiles/files/tawanaf.pdfIn PDF document text
- http://webursitet.org/Files/file/98142243557.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161544cc272cdc---20309544476.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/kn8er1n87fp1829qkrke8vkkjb/padarufupalagufov.pdfIn PDF document text
- https://soudurelauziere.ca/upload/editor/file/gemaxepuvi.pdfIn PDF document text
- https://shop-ecobati.com/medias/upload/files/bezenudazij.pdfIn PDF document text
- http://ctyrkolky-gamax.cz/data/dokumenty/sijaj.pdfIn PDF document text
- http://jamalcar.com/userfiles/file/nutoraz.pdfIn PDF document text
- http://muzeumostrowiec.pl/obrazy/file/doxema.pdfIn PDF document text
- https://drivetripper.com/userfiles2020/files/76417615380.pdfIn PDF document text
- https://hospvetcentral.pt/site/upload/file/1192867626.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://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_off0000d539.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD539 | 19672 bytes |
SHA-256: 5dde73aee4fd633bd97891ffe8ea0590af07c4b7c3469dd590fb7a9b7df33d0d |
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font_01_sfnt_off00010946.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10946 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001215d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1215D | 10732 bytes |
SHA-256: 90724376bae47b8de95934feaac477821ce40289a38eb9e0f4d7f69ace890e8e |
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