MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external websites, many of which are hosted on disposable domains. The embedded URLs, such as 'https://oniceh.ru/uplcv?utm_term=cracking+the+coding+interview+2020+pdf', suggest a phishing or scamming operation, likely attempting to exploit user interest in popular content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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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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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://oniceh.ru/uplcv?utm_term=cracking+the+coding+interview+2020+pdf PDF link annotation
- http://starroadchina.com/userfiles/file/77580569030.pdfIn PDF document text
- http://winecellarkeeper.com/ckfinder/userfiles/files/85510502064.pdfIn PDF document text
- https://euforbiabulgaria.com/uploads/pages/files/84253117943.pdfIn PDF document text
- http://ankamet.com/userfiles/file/12799957545.pdfIn PDF document text
- https://klcmekatronik.com/ckfinder/userfiles/files/37386032791.pdfIn PDF document text
- https://cebrigantina.com/025-CEB/images-editor/file/97514471387.pdfIn PDF document text
- http://serbanindustrialconstruct.ro/uploads/files/wipufabudafawakalo.pdfIn PDF document text
- https://lacausedeslivres.com/userfiles/file/vodixudifibipokowawakuf.pdfIn PDF document text
- https://www.area-tlc.com/public/ckfinder/userfiles/files/bopunazarugewuxa.pdfIn PDF document text
- https://xn--p3t29jo1ed4o4xw.tw/upload/files/wanaset.pdfIn PDF document text
- https://turismopontevedra.com/ckfinder/userfiles/files/sibaj.pdfIn PDF document text
- http://geometrarontani.it/userfiles/files/musatakevugulikuzedololaz.pdfIn PDF document text
- https://myagenda.myagenda.cz/pictures/editor/files/gopokado.pdfIn PDF document text
- http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fezupugifu.pdfIn PDF document text
- https://phuquiland.com/upload/files/tafenokoxegejavu.pdfIn PDF document text
- http://instant-image.net/UserFiles/Site/File/gipome.pdfIn PDF document text
- http://dgkno.cn/upload/94642924883.pdfIn PDF document text
- https://giasidaily.com/uploads/userfiles/file/segokikujofaxidota.pdfIn PDF document text
- http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/44089820826.pdfIn PDF document text
- http://allgeology.ru/ckfinder/userfiles/files/femupufedumaluletun.pdfIn PDF document text
- https://duhocblueocean.vn/ckfinder/userfiles/files/46030491222.pdfIn PDF document text
- http://manu-transport.com/documents/file/lonofebenekit.pdfIn PDF document text
- http://3colorjazz.com/fckeditor/userfiles/image/30003524247.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_off0000b8d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8D0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d0e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0E7 | 11200 bytes |
SHA-256: e3cc391f9c88ac2d7155208f43c9d2024f4a48bb50014dce5ecfd89997c88c0e |
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font_02_sfnt_off0000eaf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAF3 | 16784 bytes |
SHA-256: 5005a7ddfa8b37871f61b4ed75dab842cebae4c84c9a262bf9972c36e82de39f |
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