MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, suggesting it is used to redirect users to potentially harmful websites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports that the document is part of a link farm designed for malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://nomylo.ru/uplcv?utm_term=how+to+insert+pic+into+pdf PDF link annotation
- http://metall-press.ru/files/6754045951.pdfIn PDF document text
- http://euskararenginkana.eus/files/galeria/files/73540782325.pdfIn PDF document text
- http://hotelgiottotorino.com/userfiles/files/98246687399.pdfIn PDF document text
- http://tsutae-f.com/js/upload/files/97214654201.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/fa6f095ee4649561ab0357cd4de1294d/80394858406.pdfIn PDF document text
- http://sun-apartments.pl/data/pages/79519124567.pdfIn PDF document text
- http://thietbibepnhahang.net/media/files/27214513849.pdfIn PDF document text
- https://gym-rectif.fr/ckfinder/userfiles/files/49340393928.pdfIn PDF document text
- https://oilbasaro.com/web/images/ckfinder/files/20210906040018.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/9822613476.pdfIn PDF document text
- http://ty-universe.com/image/files/20210926_093439.pdfIn PDF document text
- http://begemot-rus.com/uploadfiles/file/2021100309261873499.pdfIn PDF document text
- http://kramor.bg/userfiles/file/13218673835.pdfIn PDF document text
- http://austria-ex.com/images/blog/file/54302985295.pdfIn PDF document text
- https://equipelec.fr/ckfinder/userfiles/files/60374099553.pdfIn PDF document text
- https://jin-hung.com/userfiles/file/18438687988.pdfIn PDF document text
- https://rrhh.fronteraliving.com/imagenes/contenidos/files/pifitamumifin.pdfIn PDF document text
- http://eska-lift.ru/userfiles/file/putugojerolavaxunulena.pdfIn PDF document text
- http://vitalbafitnessclub.eu/userfiles/files/5475031178.pdfIn PDF document text
- http://berallebags.com/UploadFiles/FCKeditor/20210912021355.pdfIn PDF document text
- http://cocoal.com/uploads/file/papenopozasasasatuganajof.pdfIn PDF document text
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/161312e77c8472---sumupefewu.pdfIn PDF document text
- https://newline-eg.com/userfiles/file/44020189100.pdfIn PDF document text
- http://www.astmalek.cz/obrazky/file/21048846055.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_off0000b2ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2EA | 10480 bytes |
SHA-256: 431c5ba2d56bcd80e5cf937a10c9cc433209ec724ac247a0655959d347089ab7 |
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font_01_sfnt_off0000cadc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCADC | 15464 bytes |
SHA-256: b6487e4c27c0f78c5481cc8a8233fba89d969afb29bb81157cf250af41179242 |
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font_02_sfnt_off0000f252.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF252 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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