MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external URIs, with one heuristic specifically flagging it as a link farm on disposable hosting. The document body is heavily obfuscated, but the presence of embedded JavaScript suggests an attempt to execute malicious code, likely to redirect the user to a compromised site or download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://at2-turbo-j3t.com/contents/files/jififenotelisusi.pdf In PDF document text
- http://chemtron-vostok.ru/media/file/wigopupawatujoxilef.pdfIn PDF document text
- http://neboskreb-irk.ru/uploads/userfiles/files/98611529895.pdfIn PDF document text
- http://tvkinter.com/file_media/file_image/file/36421467334.pdfIn PDF document text
- https://smwebtechnology.com/arishayurveda.com/userfiles/file/godenozavokitodagejedid.pdfIn PDF document text
- http://vvk-wiedermann.at/userfiles/file/wenawagozapajoluxunupuzo.pdfIn PDF document text
- https://inprovituruguay.com/ckfinder/userfiles/files/wofuvutaludifigon.pdfIn PDF document text
- http://webspace.mysdam.net/images/newsletter/files/nirafowazupigupuv.pdfIn PDF document text
- https://archielectronics.com/userfiles/files/daxikufori.pdfIn PDF document text
- http://fizjoactiv.eu/Upload/file/dovitalepolutiwubasizute.pdfIn PDF document text
- http://theffirm.com/userfiles/file/45029404828.pdfIn PDF document text
- http://pastadimatteo.com/ckfinder/userfiles/files/45182305588.pdfIn PDF document text
- https://ski-valloire.com/ckfinder/userfiles/files/16169879471.pdfIn PDF document text
- http://benardoutlite.com/admin/fckeditor/fckdata/file/gofuvaxuzef.pdfIn PDF document text
- http://darstin.com/userfiles/files/kodarabawepezot.pdfIn PDF document text
- http://hvezda-pardubice.cz/files/file/disaroxofumo.pdfIn PDF document text
- http://abwingssuffolk2.com/uploads/files/92866499078.pdfIn PDF document text
- https://mangonebike.com/uploads/file/58187395938.pdfIn PDF document text
- http://esoftland.com/userfiles/file/5369248814.pdfIn PDF document text
- http://sanchariglobal.com/userfiles/file/7578551087.pdfIn PDF document text
- https://autohausnschmidt.de/userfiles/file/485909893.pdfIn PDF document text
- http://montazenabytkupraha.cz/files/file/bifiwakanusid.pdfIn PDF document text
- http://sasmedm.com/www/js/ckfinder/userfiles/files/ligujuwekoga.pdfIn PDF document text
- http://mis.nrru.ac.th/gradjournal/ckfinder/userfiles/files/5464939444.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=qr+codes+do+beyblade+appPDF 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_off0000dae7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAE7 | 17104 bytes |
SHA-256: 402ce283a78d77e4a8b5b855e86150ac014dbaa8c04b3b20fba04c005ca5c9b9 |
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font_01_sfnt_off00010716.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10716 | 10528 bytes |
SHA-256: 3b7a67e9867be167fec1eeee7154b3807db17c44e82d90cfd1ec4194f0fce5bf |
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font_02_sfnt_off00011f13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F13 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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