MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or malware distribution campaign. It contains numerous embedded URLs pointing to various PDF files, suggesting a link farm designed to redirect users. The `PDF_SEO_DISPOSABLE_LINK_FARM` heuristic further supports this, indicating a pattern of using disposable hosting for these links. No scripts were extracted, but the structure and URL patterns strongly suggest an attempt to lead users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://yoshitomo-kokubunji.com/jcfiles/file/68098226286.pdf In PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613819d43ae8f---49624929254.pdfIn PDF document text
- http://sourceandsecure.com/uploads/userfiles/file/bopetonuxowojakibudiwuwop.pdfIn PDF document text
- http://kxnjl.com/userfiles/files/11097090214.pdfIn PDF document text
- http://perchegouet.com/ckfinder/userfiles/files/vagagajigixizufedovag.pdfIn PDF document text
- https://innovativallatgyogyszer.hu/fileok/file/64640881725.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/39d99db1adccd7bd7115375569b30492/8772496418.pdfIn PDF document text
- https://promobryansk.ru/userfiles/files/votojodojuvezunetog.pdfIn PDF document text
- https://autosaloncenter.com/uploads/files/45002222275.pdfIn PDF document text
- http://www.romanschatztruhe.de/img/files/leluxow.pdfIn PDF document text
- https://global-product.org/CKEdit/upload/files/3167981885.pdfIn PDF document text
- http://mariamozharova.ru/uploads/files/88262864979.pdfIn PDF document text
- https://markyatirim.com/resimler/files/zubemonojewufuzujexefel.pdfIn PDF document text
- http://www.oomedia.com.tw/ckfinder/userfiles/files/jeguxepalanavina.pdfIn PDF document text
- http://hagelkonzept.de/userfiles/file/15274788149.pdfIn PDF document text
- http://acpiindia.com/userfiles/file/mipufufet.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/navawosezav.pdfIn PDF document text
- https://bahceneryaman.net/public/content-images/files/xipulojewap.pdfIn PDF document text
- http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/tewonapuwenumekagiw.pdfIn PDF document text
- http://fese.in/ienupdimages/images/files/42303688899.pdfIn PDF document text
- http://space-edge.com/upload/files/jemozajosomunoxugazin.pdfIn PDF document text
- http://icmasistemas.com/userfiles/files/dofubovunewi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=poco+x3+nfc+sotPDF link annotation
- http://cluster006.ovh.net/~greeters/namur/ckfinder/userfiles/files/15082416342.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_off0000e174.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE174 | 10072 bytes |
SHA-256: fd8d46bd77ccf5545e4e6d7a1917fe9087e6d679758dc9a65704cf8e30eefd87 |
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font_01_sfnt_off0000f81b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF81B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001102d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1102D | 21160 bytes |
SHA-256: 8e9f69efa6f8ecc44050c156edf31b7fde5607e74ab2d0e81f617ddb05319141 |
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