MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs and is flagged by multiple heuristics, including ML and ClamAV, as malicious and a link farm. The presence of external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicate a strong intent to redirect users to potentially harmful websites. The document body is heavily obfuscated, but the overall structure and heuristic firings suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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://infrive.ru/uplcv?utm_term=santhanam+committee+report+pdf PDF link annotation
- http://asirakademi.com/resimler/files/6328244835.pdfIn PDF document text
- http://cathugo.de/res/wysiwyg/file/26520004608.pdfIn PDF document text
- https://mondoaudio.it/img/uploaded/file/bibemuzuma.pdfIn PDF document text
- https://musluogluotomotiv.com/upload/ckfinder/files/86572281279.pdfIn PDF document text
- http://el-master.ru/userfiles/file/68653956059.pdfIn PDF document text
- https://ietc-oman.com/userfiles/files/sapekatadebanigerokoju.pdfIn PDF document text
- http://winterwonderlandzundert.nl/uploadimages/files/babugefuxamomis.pdfIn PDF document text
- http://kppzp.pl/userfiles/file/3295523468.pdfIn PDF document text
- http://dlshixiang.com.cn/ckfinder/userfiles/files/jolowazataxefekoperizofox.pdfIn PDF document text
- http://joltiy.ru/uploads/files/1784850037.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16141afdac2cb8---xaguj.pdfIn PDF document text
- http://kapsalonindex.nl/images/uploads/80872208308.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16139db09cf259---vilusaxugare.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/povofefasikok.pdfIn PDF document text
- http://djk-winkel.de/images/uploads/file/jeletuwavuxuleropexozad.pdfIn PDF document text
- http://saigonford3s.com/uploads/2021-09-27/images/files/jakel.pdfIn PDF document text
- http://hangquangauto.com/files/pimativefosavov.pdfIn PDF document text
- http://sungwoneng.com/upfile_editor/2021/files/namezuxarakifijuge.pdfIn PDF document text
- http://drxzhang.com/userfiles/file/71677496544.pdfIn PDF document text
- https://triosms.com/userfiles/file/semimikokasojedojanumejaf.pdfIn PDF document text
- https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/87141159130.pdfIn PDF document text
- http://etspak.com/survey/userfiles/files/66246445371.pdfIn PDF document text
- http://9262895.ru/ckfinder/userfiles/files/81063754836.pdfIn PDF document text
- https://xosobacninh.vn/webroot/img/files/41747506169.pdfIn PDF document text
- https://fotokeramika.bg/userfiles/file/futilowepimelebafivenak.pdfIn PDF document text
- http://michelesherrinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kavivudam.pdfIn PDF document text
- http://studiolegaletrotta.eu/userfiles/files/75276371629.pdfIn PDF document text
- https://karapinler.com/calisma2/files/uploads/19745245770.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_off0000b35f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB35F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB71 | 15672 bytes |
SHA-256: f43caefa6335c7b37594e2c5f1afd79b32823d544222e635353e0d633f614d1f |
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font_02_sfnt_off0000f323.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF323 | 10748 bytes |
SHA-256: 10ac9b873a34949ebf318acd83f1908b6c7c31f76ad3dd5463e4ad31ff6566d2 |
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