MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to disposable hosting, indicating a link farm designed to redirect users to potentially harmful sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and heuristic firings strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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=link+sd+card+to+internal+memory PDF link annotation
- https://inverpalmas.com/aym_image/files/gabogijozeganatobijijusuw.pdfIn PDF document text
- https://praktijkbinnenstad.nl/file/68655364566.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/6k05a7hmr0r6dd6hoco256r3h2/dinabi.pdfIn PDF document text
- http://architettotoma.it/userfiles/files/sitiri.pdfIn PDF document text
- http://chipublichouse.com/ckfinder/userfiles/files/24919319855.pdfIn PDF document text
- http://cjpharmtech.com/upload/files/55319352421.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/bowobezedigoj.pdfIn PDF document text
- http://dxczx.com/ckfinder/userfiles/files/20210913_053229.pdfIn PDF document text
- http://ustunongel.com/image/files/37608417361.pdfIn PDF document text
- https://idosekotthonaveresegyhaz.hu/files/files/78425353996.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b50bebf787---63731922689.pdfIn PDF document text
- http://energy-labels.com/userfiles/file/deduropapogovapegovulevib.pdfIn PDF document text
- https://www.zolmedis.lt/ckfinder/userfiles/files/76892879316.pdfIn PDF document text
- https://jasmijnbloemengroen.nl/userfiles/file/84800499757.pdfIn PDF document text
- http://dogable.de/userfiles/file/sirigo.pdfIn PDF document text
- http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/wagokudopaxeregetaso.pdfIn PDF document text
- https://buildingexpertsdirectory.com/ckfinder/userfiles/files/28074318792.pdfIn PDF document text
- https://partnermind.cz/images/files/87557095956.pdfIn PDF document text
- http://sun-eko.eu/files/file/rujutirapisojuzepitas.pdfIn PDF document text
- http://rulada.by/upload/editor/files/ziguvonoxilu.pdfIn PDF document text
- https://inprovitmexico.com/ckfinder/userfiles/files/gositurazozizo.pdfIn PDF document text
- http://changrung.com/ckfinder/userfiles/files/muvoxoxapomit.pdfIn PDF document text
- http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/42125567327.pdfIn PDF document text
- http://nexxstep.nl/userfiles/file/95018941027.pdfIn PDF document text
- https://stiff.pl/ckfinder/userfiles/files/getez.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_off0000d79e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD79E | 10692 bytes |
SHA-256: f989f02a47bd206517fd4363435b95c520fab265ec35f004b99b8067c6be1a16 |
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font_01_sfnt_off0000f02a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001083c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1083C | 18604 bytes |
SHA-256: 823cad6115d0fbd7c0ba9f7fab052e9371559b4837a6774abcfeaab9dc14d280 |
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