MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm with numerous external URIs, including one that presents a deceptive download button. While the document body is unreadable, the combination of these factors suggests a phishing attempt designed to trick users into downloading a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://www.waetsukai.jp/system/ckfinder/userfiles/files/26494427075.pdf In PDF document text
- http://nakamurasangyou.jp/app/webroot/uploads/files/fisufebokopasodupuvisura.pdfIn PDF document text
- http://andlupa.com/userfiles/file/87604683888.pdfIn PDF document text
- https://wedding-photos.cz/userfiles/file/10502200967.pdfIn PDF document text
- http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/gotitowemiwoboxovinineb.pdfIn PDF document text
- https://deesudcoolingtower.com/userfiles/file/luxijagapeduvimuxe.pdfIn PDF document text
- https://viadagio.be/userfiles/file/kafufezebed.pdfIn PDF document text
- https://highrise.pl/file/21249835696.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c020598987---54844593101.pdfIn PDF document text
- http://seghers.kr/data/editor/file/75225252761317357b17cc.pdfIn PDF document text
- http://angel-conference.org/upload_fck/file/2021-9-7/20210907043156128797.pdfIn PDF document text
- https://gtijsr.com/userfiles/file/kosisezutuwuwovoponeze.pdfIn PDF document text
- http://sellmysayarah.com/userfiles/files/nexerawawemefesajud.pdfIn PDF document text
- https://baruipur.org/ckfinder/userfiles/files/sudev.pdfIn PDF document text
- https://satellietgroep.nl/userfiles/files/kuberowezapokatipofax.pdfIn PDF document text
- https://highrise.pl/file/witetusosavezugo.pdfIn PDF document text
- http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/26337649518.pdfIn PDF document text
- https://rajaunited.com/contents/files/16746626645.pdfIn PDF document text
- http://sp3siemianowice.pl/userFiles/files/rukuki.pdfIn PDF document text
- https://cultureresortpokhara.com/assets/userfiles/files/91147616533.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614106ee44db8---52448528527.pdfIn PDF document text
- http://chrislahoda.ca/userfiles/file/jajenazifaruj.pdfIn PDF document text
- http://xn--9w3b270a7kf.kr/data/editor/file/97938039453.pdfIn PDF document text
- https://cornwallstaffagency.com/userfiles/file/76699789273.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=zynga+poker+unlimited+moneyPDF 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_off0000e1cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1CF | 17996 bytes |
SHA-256: 392a71bd90ddcb7b12a04ba6a0920feb7238fe3473df9184375e0684b1e42809 |
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font_01_sfnt_off000110b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000128cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128CB | 10836 bytes |
SHA-256: fda2f6e686df9c145bd1a9b51bda2621f6cfd1d7281da9b58489f72c80b714be |
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