MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML and ClamAV as malicious, with a high-confidence ML score. The PDF contains embedded JavaScript and numerous external URIs, many of which point to disposable domains, indicating a link farm or phishing attempt. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically calls out this behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 http://ubest.ru/images/file/70911173655.pdf In PDF document text
- http://mspchicagolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/84339369043.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/dfshh31uc826ql3qe3clg3vcle/44350843569.pdfIn PDF document text
- http://factory-01.com/js/upload/files/24231882442.pdfIn PDF document text
- https://krossi.ru/images/content/files/tunone.pdfIn PDF document text
- http://cuadepthanglong.com/images/ckeditor/files/takevutiraxop.pdfIn PDF document text
- http://www.miyadenthai.com/image/upload/File/vizowizitogorigu.pdfIn PDF document text
- https://stka.gr/ckfinder/userfiles/files/repur.pdfIn PDF document text
- http://forma8.kz/ckfinder/userfiles/files/zidevu.pdfIn PDF document text
- https://soosekszer.hu/upload/files/ponuxulawobumepusiwa.pdfIn PDF document text
- https://alistairmills.com/ckfinder/userfiles/files/wunobag.pdfIn PDF document text
- https://vico-inmobiliaria.com/ckfinder/userfiles/files/62472292664.pdfIn PDF document text
- http://funagamex.vn/PhuongNamGroup/userfiles/files/5878990940.pdfIn PDF document text
- http://greenld.com/userfiles/votazivepofejinu.pdfIn PDF document text
- http://miet-boot.ch/images/uploadedimages/file/sotekagagifevosolutudoj.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613271f392eb3---10927196696.pdfIn PDF document text
- https://vinocastillo.hu/editor_up/55915961326.pdfIn PDF document text
- http://xn--zb0by3yusal20ak5lcidnwigi.com/ckfinder/userfiles/files/1631145201.pdfIn PDF document text
- http://makesrealsense.com/ckfinder/userfiles/files/mejafekaki.pdfIn PDF document text
- http://the-bom.kr/upfile/files/68759861270.pdfIn PDF document text
- http://ilkconstruction.com/Images/Media/files/70550792119.pdfIn PDF document text
- https://cuichi177.com/uploads/files/202109020959292553.pdfIn PDF document text
- http://cassotech.nl/site/data/ws/files/seguf.pdfIn PDF document text
- http://naturalmis.com/userfiles/file/guvibulufawofufoja.pdfIn PDF document text
- https://simpangkanan.com/contents/files/30349796514.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=bf+comedy+shayariPDF 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_off0000c2bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC2BD | 10660 bytes |
SHA-256: 904d1ccd3c72740a9962fe3b00c9fe741d33184a23641ab80de9e04296fe143d |
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font_01_sfnt_off0000db2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB2D | 20576 bytes |
SHA-256: e7408c16d7e7787fe5879cec71bf227f696844de89fba99c55ba5b0f09606d63 |
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font_02_sfnt_off000110b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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