MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, many of which point to disposable hosting and are structured as a link farm, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further support this conclusion, indicating the document's primary purpose is to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://synerhu.ru/uplcv?utm_term=android+send+email+automatically PDF link annotation
- http://logo4you.dk/userfiles/file/ronituzuxirafetoxipevaboj.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/7009194875.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///tiwapatexojixam.pdfIn PDF document text
- http://ctnphrae.com/ckfinder/userfiles/files/86736280634.pdfIn PDF document text
- https://mimpiindah2.com/contents/files/xeduvikotetaxet.pdfIn PDF document text
- http://gat-asset.com/CKEdit/upload/files/mivovofezaba.pdfIn PDF document text
- http://www.ufolep-69.com/contenus/files/fulewitakatabekobeduduba.pdfIn PDF document text
- https://goldmenu.com/userfiles/file/motuvivodop.pdfIn PDF document text
- https://karapinarinsaat.net/userfiles/upload/file/bexufeposikipikuda.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/7e0ba7ef8a7cff78de81de5e120e099b/55690645971.pdfIn PDF document text
- http://olympicthesportshop.in/uploads/pexupuwajomef.pdfIn PDF document text
- https://harmony-lazienka.pl/Upload/file/pefunuda.pdfIn PDF document text
- http://bearings-home.com/userfiles/file/mabatapisirudu.pdfIn PDF document text
- http://capesociety.ca/uploads/files/65645953644.pdfIn PDF document text
- http://studioarchterreni.it/userfiles/files/97764739296.pdfIn PDF document text
- https://cursosadistanciayonline.com/medios/files/lanalazulotoxizuzam.pdfIn PDF document text
- http://bulmarconsult.com/files/9664265443.pdfIn PDF document text
- http://fotografoenricogiampieri.it/userfiles/files/nobemuponumijatigodil.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/ximelola.pdfIn PDF document text
- http://ambulanceservice.pl/userfiles/file/kuritixamubuwewilenuw.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161383e11482a0---8660468430.pdfIn PDF document text
- http://leguido.net/files/13007051639.pdfIn PDF document text
- http://allier.proximeo.com/ckfinder/userfiles/files/ruworixukajomikusupilodu.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_off0000d42a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD42A | 17912 bytes |
SHA-256: 75eecbe02d6d76dec3f2b1ba1334121594303949fdf94de249f640442e72e204 |
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font_01_sfnt_off0001025d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1025D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A74 | 10724 bytes |
SHA-256: 7cabfb9f4402dd46bb972a5de09357e95c53f67eff865564aa40331b5e99413f |
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