MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, indicating it is designed to redirect users to potentially malicious websites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a link farm designed for malicious purposes, likely phishing or malware distribution. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=speaking+cue+cards+2021+with+answers+pdf PDF link annotation
- http://madiran-cruduparadis.fr/ckfinder/userfiles/files/laxazuloxaserudobi.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137ee9c763cd---8343408333.pdfIn PDF document text
- http://ryyw.com/upload/files/2021/09/202109270206576609.pdfIn PDF document text
- https://weishinclinic.com/uploads/files/202110021014258408.pdfIn PDF document text
- https://ww150007.linebot.net/upfile/files/20210929150812.pdfIn PDF document text
- http://laptopcuhaiphong.vn/upload/files/ruwofome.pdfIn PDF document text
- http://ecovn.vn/uploads/news_file/fogidof.pdfIn PDF document text
- http://www.eurosecurimed.com/ckfinder/userfiles/files/39920182414.pdfIn PDF document text
- https://theipbuzz.com/images/file/2261031604.pdfIn PDF document text
- https://zemtechnika.lt/public/site/0files/16320872897.pdfIn PDF document text
- https://www.algeos.com/js/ckfinder/userfiles/files/25984035164.pdfIn PDF document text
- http://status-go.net/gfx/userfiles/files/58555110024.pdfIn PDF document text
- https://newcar-rental.com/uploads/files/202109010652309828.pdfIn PDF document text
- http://kasintorn.com/images/upload/files/14797135206.pdfIn PDF document text
- http://okna-dvere-online.cz/media/upload/upload/file/famipiwi.pdfIn PDF document text
- https://svilia.restavracia02.com/userfiles/file/kofigisej.pdfIn PDF document text
- https://actor-conseil.com/files/file/gusinujer.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138873525ba7---96073674191.pdfIn PDF document text
- https://baoholaodong24.com/userfiles/file/2545963596.pdfIn PDF document text
- http://getem.eu/files/file/xogel.pdfIn PDF document text
- http://wsmr.us/userfiles/file/vukodigosow.pdfIn PDF document text
- https://castilloexterior.net/ckfinder/userfiles/files/78142087566.pdfIn PDF document text
- http://ballmillfactory.com/d/files/xovopimifopewikomuruki.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/70585055622.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_off0000affc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFFC | 11380 bytes |
SHA-256: 0ecc8c4b366ce6a45507d4d8bd0f4e3fa68952cf1a6dce6ce6d43194fed8e2ef |
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font_01_sfnt_off0000cabb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCABB | 16136 bytes |
SHA-256: 1641425f91a5f03ffe6047666a8fb50342e19f126a16a39f89c09e5201277881 |
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font_02_sfnt_off0000f339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF339 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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