MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to other PDF files hosted on various domains, suggesting a link farm or a distribution point for malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high number of distinct hosts and links, reinforcing the idea of a coordinated effort to manipulate search results or distribute malware. No scripts were extracted, but the overall structure and detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://cualuoihoanmy.com/uploads/userfiles/file/38782110887.pdf In PDF document text
- http://kientrucsangtrong.com/plus/files/fivijubikidisor.pdfIn PDF document text
- http://duda-tech.pl/dudatech/upload/file/zudatokoraki.pdfIn PDF document text
- http://thienthaopc.com/upload/FCK/file/diwazonimizibof.pdfIn PDF document text
- https://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/36795825302.pdfIn PDF document text
- http://qdjshg.com/files/file/gemamufiwam.pdfIn PDF document text
- https://ibshospitals.com/userfiles/file/wuwol.pdfIn PDF document text
- https://mlmrockstars.com/ckfinder/userfiles/files/kinetora.pdfIn PDF document text
- http://knx-shop.ru/admin/ckfinder/userfiles/files/wezofurexaw.pdfIn PDF document text
- http://studiofapas.it/userfiles/files/fuxizubatujepemenozubunag.pdfIn PDF document text
- http://huijingweb.com/upload_fck/file/2021-9-16/20210916190909507431.pdfIn PDF document text
- https://hyosungulf.com/uploads/file/69703335481.pdfIn PDF document text
- http://gleb777.com/fck_upload/file/jojilaxizoruvev.pdfIn PDF document text
- https://indobaliart.com/sitefiles/file/pizumapikazosowova.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/nixovewufi.pdfIn PDF document text
- https://www.vpn-solutions.com.pe/ckfinder/userfiles/files/famobapufagemaletatel.pdfIn PDF document text
- http://weilandvloeren.nl/fckimages/16160369671.pdfIn PDF document text
- http://ildongwire.com/userfiles/file/kufera.pdfIn PDF document text
- https://thanaclusterwestgate.leaddeehub.com/userfiles/files/73523288812.pdfIn PDF document text
- http://immobilieninvestors.eu/userfiles/file/posuvagelekes.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/3977723715.pdfIn PDF document text
- http://poongdung.com/FileData/ckfinder/files/20210919_15BA91E8F3845EE2.pdfIn PDF document text
- http://asfalon.com/__files/file/dadogojibimajivugebisevik.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b38993f9d7---88187044180.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=final+fantasy+iii+nes+romPDF 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_off0000d6ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6EE | 22004 bytes |
SHA-256: 075795fcf57b091fa1e46b084af59c0a48eda4a6de58b34c8a720adbc63b12ff |
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font_01_sfnt_off00010fb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127CB | 10464 bytes |
SHA-256: ef2c1bdd5e446fbaf9e5942729d127a992e5d6d5901e16d6d65447cb6551601b |
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