MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The PDF also contains numerous external URIs, one of which is identified as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The embedded JavaScript likely redirects the user to one of these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://phukientubepxinh.info/gomsu/sanpham/anh/files/67791243066.pdf In PDF document text
- https://shoppingplanet.ro/ckfinder/userfiles/files/gizikunidefabonagum.pdfIn PDF document text
- https://ip-kamera-rendszer.nuttydog.hu/ckfinder/userfiles/files/tonukidisorigexid.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/46235486151.pdfIn PDF document text
- http://kaies.cn/upfiles/210909110419842676w5vf1u.pdfIn PDF document text
- https://tssch.in/tssch/application/admin/uploads/file/dekunodavojafapesefavag.pdfIn PDF document text
- https://er-cardiff.com/eurostyl/photos/file/95658221965.pdfIn PDF document text
- https://ijmscr.com/ckfinder/userfiles/files/retotuxijugogiladim.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613fa2167b983---zapuj.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/wakuradulisiwuwimo.pdfIn PDF document text
- http://lidaoxc.com/upload/files/xabodimureje.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161360a65af394---18120154823.pdfIn PDF document text
- http://tea-ra.com/user_data/upload/save_image/files/25487436992.pdfIn PDF document text
- http://aaronandanthony.com/userfiles/files/tijokejelivipikada.pdfIn PDF document text
- http://lorofilmes.com/Uploads/ckfinder/userfiles/files/84171066954.pdfIn PDF document text
- https://robertbah.si/files/file/64520517372.pdfIn PDF document text
- http://www.saito-ken.jp/userdata/file/duwebemiridunekibat.pdfIn PDF document text
- http://gartenbaukoeln.de/uploads/files/71334687042.pdfIn PDF document text
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/manaboditefewon.pdfIn PDF document text
- https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/razagosedajazijad.pdfIn PDF document text
- https://markmont.eu/editor_uploads/system/files/duwarem.pdfIn PDF document text
- http://plise.org/userfiles/file/16460323246.pdfIn PDF document text
- http://jngf.cn/files/file/45241153481.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/26954411877.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+save+a+pdf+after+editingPDF 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_off0000d59a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD59A | 10768 bytes |
SHA-256: 69c71ebf5cf0060b05c1376acdf96290cc55b053af01e74437783cca2093d8df |
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font_01_sfnt_off0000ee58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE58 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001066a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1066A | 18132 bytes |
SHA-256: 7810dc0040d1b58fef3217b53057cf06bcd27b991f36b95b1fad6e83193aa357 |
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