MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a password-protected archive lure and a link farm. The numerous embedded URLs, many pointing to suspicious PDF files on disposable domains, suggest an attempt to distribute further malicious content. While no scripts were directly extracted, the nature of the PDF and the link farm heuristic suggest potential for JavaScript execution or other embedded malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://novastal.pl/userfiles/file/kilelijurudimaxuvufabol.pdf In PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/6bad5f566954b1e9ba4e602d8586986f/zojiwelizupon.pdfIn PDF document text
- http://www.hausman.eu/images/wyswig_images/file/98175719008.pdfIn PDF document text
- http://hamlineparkplaza.com/assets/amund/ckfinder/userfiles/files/35093489522.pdfIn PDF document text
- http://cabini.it/userfiles/files/zotifalemozulemesex.pdfIn PDF document text
- https://santehsevast.ru/userfiles/files/radamuniveno.pdfIn PDF document text
- http://blessingsngo.in/userfiles/files/xodofazunevo.pdfIn PDF document text
- http://www.deep2001.com/images/library/File/3279317726.pdfIn PDF document text
- https://fo-prefectures.com/pages/files/zasasazejutos.pdfIn PDF document text
- https://kimansion.com/uploads/file/11681147298.pdfIn PDF document text
- http://yangs-ns.com/ckfinder/userfiles/files/20210906153248.pdfIn PDF document text
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/d843a706d413dc270d1f44ffe58b349e/xatolid.pdfIn PDF document text
- https://retrofitoman.com/ckfinder/userfiles/files/92454664129.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/mezerumutizoz.pdfIn PDF document text
- https://norservis.cz/files/files/63859138417.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/bovopujeku.pdfIn PDF document text
- https://gospel-streams.com/asset/ckfinder/userfiles/files/94848746578.pdfIn PDF document text
- https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/75977558634.pdfIn PDF document text
- http://caigeshi.com/uploadfile/file/2021091702505873499.pdfIn PDF document text
- http://specialcats.nl/media/files/99259186412.pdfIn PDF document text
- https://mygrind.ie/userfiles/file/83561453217.pdfIn PDF document text
- http://phunphu.com/userfiles/file/monerimezolukozex.pdfIn PDF document text
- http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/2641920424.pdfIn PDF document text
- http://kaiyudachem.com/filespath/files/20210915192949.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-4/20210904221104663653.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=feed+the+beast+infinity+evolved+guidePDF 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_off0000c8d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8D4 | 19116 bytes |
SHA-256: d43dd523999f6cf1eb802049a8919e6e048d614a7b864b85b0b1b06e91bd00e5 |
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font_01_sfnt_off0000f9c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9C7 | 10928 bytes |
SHA-256: 17fcba44babe97626fd9be1bee956aa6cfffe4b7a86a5c5a7cb539e70ff1e4b3 |
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font_02_sfnt_off000112e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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