MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The presence of numerous external links, many pointing to PDF files on various domains, suggests a link farm or redirection mechanism designed to obscure the ultimate destination or to host further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://gadesign52.com/uploads/files/202109131502574409.pdf In PDF document text
- http://wtmongolia.com/materials/file/sewibojiwix.pdfIn PDF document text
- https://receptabc.hu/images_banner/files/josivebofevodezuruxuxuj.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613f26c28ad5c---31259749712.pdfIn PDF document text
- https://jnvhardoi.org/ckfinder/userfiles/files/18941397653.pdfIn PDF document text
- https://baptistfriends.org/media/zodagamujudamopiduk.pdfIn PDF document text
- http://vivaibonomo.it/userfiles/files/90946031516.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613005cbc66b2---87198026178.pdfIn PDF document text
- http://myapartment.de/web/editor/files/5290275806.pdfIn PDF document text
- https://alixdemassy.fr/userfiles/file/warawozozawijabedo.pdfIn PDF document text
- https://casadko.fr/userfiles/file/wekidopu.pdfIn PDF document text
- http://tsrmvolontari.it/userfiles/files/51739591594.pdfIn PDF document text
- http://vizugy.hu/uploads/files/rodivibisusizuzefodajel.pdfIn PDF document text
- http://dtpokebar.com/uploads/files/pegejinenifolegoxerer.pdfIn PDF document text
- https://www.bnbtravels.com/ckfinder/userfiles/files/fuzupi.pdfIn PDF document text
- https://mycocoa.org/images/upload/files/gosubonuripew.pdfIn PDF document text
- https://joebalogh.ro/imagini_ws/potuvibomivefi.pdfIn PDF document text
- http://zerosquareonline.com/file/82916523924.pdfIn PDF document text
- http://worldprint.su/userfiles/file/81815506657.pdfIn PDF document text
- http://defhjdrjioo.friend-match.com/upload/files/vevidiwavevidotij.pdfIn PDF document text
- https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/fitufurusejeliset.pdfIn PDF document text
- https://vanchuyenduongsat.vn/upload/files/13412003233.pdfIn PDF document text
- https://tekartltd.com/upload/files/69334647009.pdfIn PDF document text
- http://siamsankyo.com/Uploads/file/gufux.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=natural+language+programming+examplesPDF 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_off0000e7fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001000f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1000F | 17680 bytes |
SHA-256: 21e9754b92f33d8467414e383a2b6b06e98b834735b41c70532a1173a50360d0 |
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font_02_sfnt_off00012db4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DB4 | 10772 bytes |
SHA-256: d4cc5a01dab5afe6416cea9b30e57d41d6df1ea4dc9f2643201c3b7f200ebc68 |
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