MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for initiating malicious actions. It also contains numerous external URLs, one of which is a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 http://bunny888.com/ckfinder/userfiles/files/dobudexivozofuvafukawu.pdf In PDF document text
- http://gomsuhoangminh.com/app/webroot/uploads/files/nemepomebug.pdfIn PDF document text
- http://szjwwj.com/userfiles/file///21629662992.pdfIn PDF document text
- https://penzion-pod-rozhlednou.cz/img/file/maritipumimepitadazab.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16131ae457a1b2---punerugumiboxised.pdfIn PDF document text
- https://medius.sk/userfiles/file/3770522759.pdfIn PDF document text
- http://fc-junajted.com/upload/datoteke/15221443631.pdfIn PDF document text
- http://ruresept.ru/files/file/65664012303.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-9-7/20210907000530102696.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16142bd96709ff---5265057853.pdfIn PDF document text
- http://sanmorales.es/userfiles/files/21632283606.pdfIn PDF document text
- http://ybshajiang.com/userfiles/file/2021-09-15/210915074200502688moghnie666y2.pdfIn PDF document text
- http://bbfrontedelmare.com/userfiles/files/zigabonevokafewetapanuner.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109200529593846.pdfIn PDF document text
- http://mspchicagolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rumulesola.pdfIn PDF document text
- https://adikmanis.com/contents/files/38624150999.pdfIn PDF document text
- https://acerocorte.centralcms.cloud/galeria/files/suraviteg.pdfIn PDF document text
- http://suphammamnon.org/uploads/files/renelezorow.pdfIn PDF document text
- https://healthmatters.me/userfiles/file/25106260333.pdfIn PDF document text
- http://ateliergermain.org/sites/default/files/file/nidunukiwowowa.pdfIn PDF document text
- http://tipkeo.com/js/ckfinder/userfiles/files/gesukekopuxixe.pdfIn PDF document text
- http://ayurvedicclinic.org/userfiles/file/gikogomulakegezixujutorej.pdfIn PDF document text
- https://whatshoulditcostme.com/userfiles/file/65488056396.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=live+cricket+streaming+2021PDF 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_off0000b28c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB28C | 10816 bytes |
SHA-256: 76f1d99004c3f3ba269b5b59682fa44924f87c44d160a2c8d5234fd3149e9bf8 |
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font_01_sfnt_off0000cba9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBA9 | 16576 bytes |
SHA-256: 5657d488c63278515765e230148e2c836e6faa876a5a8beabee1032028bddd94 |
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font_02_sfnt_off0000f578.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF578 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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