MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains numerous embedded URLs that point to disposable domains, characteristic of a link farm designed to redirect users to potentially malicious content. The presence of external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://chcial.ru/uplcv?utm_term=artemis+fowl+book+pdf PDF link annotation
- http://mya1fc.com/files/ckuploads/files/dusabegilonafiwabel.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c519b2070f---vofokuwarititawoxuzate.pdfIn PDF document text
- https://prosaison.fr/userfiles/files/fovixurapuxuteki.pdfIn PDF document text
- http://haiqi-machine.com/d/files/tenidibure.pdfIn PDF document text
- https://www.notusweb.com.br/ckeditor/ckfinder/userfiles/files/rolazawirozexazuxuboroguv.pdfIn PDF document text
- http://winterwonderlandzundert.nl/uploadimages/files/bobexojokozitum.pdfIn PDF document text
- http://virtualcharityevents.com/vce_cake/files/files/kaburopujogewi.pdfIn PDF document text
- http://jan-fotografie.nl/upload/files/10568436237.pdfIn PDF document text
- http://onlinemidias.com/ckfinder/userfiles/files/bilobibajazad.pdfIn PDF document text
- http://hydrogears.com/survey/userfiles/files/zeludosanuxel.pdfIn PDF document text
- https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/4805295463.pdfIn PDF document text
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ea1de0ac2b042b3e52307cdcbbaeea83/9223003809.pdfIn PDF document text
- https://ruta.hu/ckfinder/userfiles/files/zenomawunupetiriwis.pdfIn PDF document text
- http://murzilka.biz/images/uploads/file/jopugufatumufesute.pdfIn PDF document text
- http://tecsun-moscow.ru/docs/file/nozanuzekofejuragojudaxad.pdfIn PDF document text
- http://kondicionery-vidnoe.ru/upload_picture/file/20330613732.pdfIn PDF document text
- https://hoatuoi360.vn/uploads/files/bodigesegugixudademi.pdfIn PDF document text
- http://strahyi.ru/images/file/48854355956.pdfIn PDF document text
- http://seanbittinger.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/87159172651.pdfIn PDF document text
- http://tovicetour.com/FileData/ckfinder/files/20210922_3B6B37FABEB8765D.pdfIn PDF document text
- http://udelimpa.es/ckfinder/userfiles/files/51358673125.pdfIn PDF document text
- http://a-pro-peau.fr/userfiles/file/rowusutusuredax.pdfIn PDF document text
- http://ues-rb.ru/themes/ues-rb.ru/files/pepedapexirufil.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_off0000cc0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC0F | 18452 bytes |
SHA-256: f24e28d32bbc22d5f29c1fefaddf0ee0141dcc433b04e7ab20e76da8af5e76ba |
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font_01_sfnt_off0000fc49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC49 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011460.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11460 | 10692 bytes |
SHA-256: 12565333f92268a542d8d056b002ac73929b2846519c4c1c8ab08011280f7094 |
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