MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or trojan delivery mechanism. The 'Fake CAPTCHA' heuristic indicates the document aims to deceive the user into performing an action, likely to download a secondary payload. While no scripts were directly extracted, the presence of numerous external URLs suggests an attempt to redirect the user to malicious content or download further stages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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://vaitinhdien.com/app/webroot/upload/files/77353226794.pdf In PDF document text
- http://interstroy96.ru/uploads/files/popemoduresosuwawope.pdfIn PDF document text
- http://cestovni-postylka.eu/userfiles/file/20233942655.pdfIn PDF document text
- http://xn--80akoseq9f.xn--p1ai/userfiles/file/28297175361.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/72160692006.pdfIn PDF document text
- https://simon-daulte.com/ckfinder/userfiles/files/74678123487.pdfIn PDF document text
- http://denis-lefebvre-services.com/fichiers/file/siteniritinisiderobuvev.pdfIn PDF document text
- http://elitk.ru/_files/gazesilip.pdfIn PDF document text
- http://yeosingol.com/FileData/ckfinder/files/20210923_806CEAC0C7AF9D69.pdfIn PDF document text
- http://bellamy.tw/uploads/files/202109120128175000.pdfIn PDF document text
- http://terezmisszio.eu/files/file/tolopepapamaxefuv.pdfIn PDF document text
- http://www.gyndoktors.de/ckfinder/userfiles/files/papojipifat.pdfIn PDF document text
- https://betalinktech.com/blmedia/file/sebowakukek.pdfIn PDF document text
- https://efnnma.org/files/file/56585998943.pdfIn PDF document text
- http://madinagirls.com/easydo%20v2.00/files/uploads/zitejosilezimegaxi.pdfIn PDF document text
- https://bnbcostaverde.it/userfiles/file/xogusasa.pdfIn PDF document text
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/75661263255.pdfIn PDF document text
- http://elitk.ru/_files/30282279573.pdfIn PDF document text
- http://kochamsushi.pl/UserFiles/file/81526432258.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/dojigawevuvopu.pdfIn PDF document text
- http://vishwkarmaenterprises.com/webroot/img/userfiles/files/4495810851.pdfIn PDF document text
- https://napraforgohotel.hu/upload/file/xikoxosimadaxiwapakuwub.pdfIn PDF document text
- https://muguet.fr/sites/default/files/file/95637273126.pdfIn PDF document text
- http://daechienglishpark.com/ckfinder/userfiles/files/91116340345.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=discord+nitro+codes+pastebin+2020PDF link annotation
- 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_off0000fea2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000116b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116B4 | 21312 bytes |
SHA-256: 210024abfcd65bf40e15b00b39251454c13730d75659add8691761c7a65a7eb2 |
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font_02_sfnt_off00014f76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F76 | 10844 bytes |
SHA-256: 51c1737a5a6c1cb3db47b33914eb97cd6f4055c0ed0575bfaf494c3b5260b20a |
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