MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains embedded JavaScript and numerous external URIs, many of which point to domains that appear to be part of a link farm. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a high likelihood of this being a phishing or redirection attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
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://jnvhardoi.org/ckfinder/userfiles/files/sofawuxisozavapoge.pdf In PDF document text
- http://cana.vn/uploads/userfiles/file/wikaposedimozi.pdfIn PDF document text
- http://sacoorhealth.pt/site/upload/file/wawesuxigisuguzugasozovi.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-12/20210912114747235808.pdfIn PDF document text
- http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/99918192092.pdfIn PDF document text
- https://daiichitravel.com/uploads/news_file/76732884130.pdfIn PDF document text
- http://glampingcaravan.com/userfiles/file/20210904000104.pdfIn PDF document text
- http://palami.by/images/file/wononetexuvededo.pdfIn PDF document text
- http://onthebroadway.com/CPD/adminpanel/upload/file/lujiwaxuwizogerov.pdfIn PDF document text
- https://at2-turbo-j3t.com/contents/files/rutigexezogudo.pdfIn PDF document text
- http://www.kymenhome-etsinta.net/tiedostot/files/boxetojewariduwi.pdfIn PDF document text
- https://lp-tracking.com/userfiles/file/zizuduselisarubizidemup.pdfIn PDF document text
- https://martas.vodrsport.cz/uploads/files/fekekotoluneranuvunoru.pdfIn PDF document text
- http://ulv-fogger.ru/d/files/50231757078.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/5277078789.pdfIn PDF document text
- https://embassyinvietnam.com/webroot/img/files/44105646637.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615efc1b22a93---80097520030.pdfIn PDF document text
- https://pmeds.us/userfiles/file/53600658045.pdfIn PDF document text
- https://mama-light.net/business_school/uploads/file/39617898277.pdfIn PDF document text
- http://wildpflanzen-planung.de/file/16446393279.pdfIn PDF document text
- http://tns-china.cn/editor_upload_image/file/tanitaxariwafovudajuziguw.pdfIn PDF document text
- http://semihkerpiccilervesupersound.com/upload/file/pigexojopurevutidom.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/fuzowo.pdfIn PDF document text
- https://soosekszer.hu/upload/files/pamozu.pdfIn PDF document text
- https://landtop.com/filespath/files/20210929024141.pdfIn PDF document text
- http://chinalabware.ru/d/files/10604473992.pdfIn PDF document text
- http://goodlife88.com/uploads/files/42033206272.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=psp+game+for+androidPDF link annotation
- 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_off0000c9f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9F0 | 16916 bytes |
SHA-256: c57a1216d6fc611591805cea406e17f6a624eac54940f06a1819a4e8479d7e62 |
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font_01_sfnt_off0000f58d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58D | 10696 bytes |
SHA-256: 508455f104f46ee6263e561ca2d17c527586074f9d60912047c020a67bbd4602 |
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font_02_sfnt_off00010dd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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