MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous extracted URLs point to a link farm strategy, where users are directed to multiple, likely compromised or disposable, domains. The presence of a Google feedproxy URL, though marked benign, suggests an attempt to obscure the final destination or leverage legitimate services for initial redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://sz-nuoyi.com/Upload/file/2021090901514786817.pdf In PDF document text
- https://ubk-sad.de/azubi/userfiles/files/rumizosamezizew.pdfIn PDF document text
- https://pergamine.com/ckfinder/userfiles/files/jilukiluvudurinakupiza.pdfIn PDF document text
- http://yogasol.cz/ckfinder/userfiles/files/58760099731.pdfIn PDF document text
- http://abcbyspu.net/ckfinder/images_store/files/mirewov.pdfIn PDF document text
- http://ipmarketing.net/FCKeditor/editor/filemanager/connectors/userfiles/file/6457599043.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/d07b6a31bba0d06ca0b0048faf665aa3/futoxabokefilelinajorepo.pdfIn PDF document text
- http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210912_3B710E78B8A8ED0C.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/8688cb154df8f4e54c4e4b119fea7415/60378652032.pdfIn PDF document text
- https://wonwon.taipei/photo/file/55106237844.pdfIn PDF document text
- https://mbamantra.com/ci/userfiles/files/28836509780.pdfIn PDF document text
- https://chungcungoaigiao.vnpec.xyz/uploads/files/kovafexisif.pdfIn PDF document text
- https://bushregenerators.net/userfiles/files/27193454846.pdfIn PDF document text
- https://vivaldiroberto.com/img/files/mediafiles/file/najawojeluzimipo.pdfIn PDF document text
- http://mpu-beratung-brendle.de/userfiles/file/futurofoxifonabusumifujij.pdfIn PDF document text
- http://ampletrekking.com/userfiles/file/zevizowomijojuginobozex.pdfIn PDF document text
- http://neuchina.org/userfiles/file/segisiratoveso.pdfIn PDF document text
- https://www.whoamiandwhyamihere.com/ckfinder/userfiles/files/74424675708.pdfIn PDF document text
- http://flapboxes.custompackageboxes.com/userfiles/files/36832933185.pdfIn PDF document text
- https://saleskerala.com/ckfinder/userfiles/files/93108003039.pdfIn PDF document text
- https://kristaldicarlo.com/userfiles/file/regifide.pdfIn PDF document text
- https://lekkermooi.nl/userfiles/file/makol.pdfIn PDF document text
- http://pretaporter-pegah.com/userfiles/file/nujutipuwexep.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=pok%C3%A9mon+omega+ruby+and+alpha+sapphire+gbaPDF 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_off0000d2a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2A6 | 20396 bytes |
SHA-256: ed0c612a61810ffde06e83f217f97dbcb9dcf5e4e77682d5bcd8113f65aac67c |
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font_01_sfnt_off00010866.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10866 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001207d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1207D | 11340 bytes |
SHA-256: 77cb06a197b9d2b3c9e8b8a1fadfa729d903929537bbcb59ff0897a1c451957a |
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