MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is often used to redirect users to malicious websites or download further payloads. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the numerous extracted URLs suggest a link farm or SEO manipulation tactic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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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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://pes.edu.mn/ckfinder/userfiles/files/milula.pdf In PDF document text
- http://mygiftltd.com/userfiles/file/49769933493.pdfIn PDF document text
- http://telegid.tv/userfiles/file/55662377620.pdfIn PDF document text
- http://hindel-relax.ch/ckfinder/userfiles/files/34917967477.pdfIn PDF document text
- http://cuanhuadanang.vn/uploads/image/files/wumorudibixi.pdfIn PDF document text
- https://octvads.site/js/ckfinder/userfiles/files/49525795975.pdfIn PDF document text
- https://haltia.mx/sii/ckfinder/userfiles/files/96133040686.pdfIn PDF document text
- http://www.icf-plant.com/files/file/xepalemikamajigopadu.pdfIn PDF document text
- http://wdnederland.nl/file/41841275964.pdfIn PDF document text
- http://alfatreyd-mebel.ru/archive/images/file/liwiro.pdfIn PDF document text
- http://china-baby-clothes.com/d/files/79697212251.pdfIn PDF document text
- https://kawanmto.net/contents/files/liletodikiwegazapituneden.pdfIn PDF document text
- https://purefeeling8.com/data/file/59531398677.pdfIn PDF document text
- http://tbvshungviet.com/upload/files/wotazabulotijuwatu.pdfIn PDF document text
- http://abwninemile.com/uploads/files/5528816835.pdfIn PDF document text
- http://labotinnghia.com/img/files/54375392850.pdfIn PDF document text
- http://elitakhealing.com/ckfinder/userfiles/files/8522156394.pdfIn PDF document text
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614780138e612---57388836343.pdfIn PDF document text
- https://chung-pei.com/userfiles/file/35642882292.pdfIn PDF document text
- https://korankertas.com/contents/files/dufebomaxuwor.pdfIn PDF document text
- http://budropol.de/Upload/file/33997248025.pdfIn PDF document text
- https://texasbordervolunteers.org/userfiles/file/wigoxikadigogut.pdfIn PDF document text
- http://ksklinika.ru/ckfinder/userfiles/files/dapaperug.pdfIn PDF document text
- http://emailreceptionist.net/userfiles/file/89176249802.pdfIn PDF document text
- https://stancijanegrin.com/userfiles/file/nafusefizudu.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce1ed2f72b---7081669020.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=fifa+21+psp+iso+downloadPDF 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_off0000c319.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC319 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB2B | 16812 bytes |
SHA-256: 655501eaeb854bd6e72834cb3a344063b3a508f7b42e32b44a80a1106cccbe52 |
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font_02_sfnt_off000106a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A7 | 10396 bytes |
SHA-256: 821de6e6aa7a1004dd8276a44840f271942005d115fd30d20a4fbde70f3452ec |
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