MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or delivering malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous unknown URLs suggest a link farm designed to distribute malicious PDFs, likely as part of a phishing or malware campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://namlinhchisapa.com/userfiles/image/file/21372649039.pdf In PDF document text
- http://www.nagsa.es/ckfinder/userfiles/files/59152428252.pdfIn PDF document text
- http://szguilong.com/userfiles/files/98511142065.pdfIn PDF document text
- https://anpheatingandac.com/nbloom/fckuploads/file/muluga.pdfIn PDF document text
- http://pr-jam.com/ckfinder/userfiles/files/tudobozun.pdfIn PDF document text
- http://allineers.morefriendship.com/upload/files/kopugofanijejaxu.pdfIn PDF document text
- https://shop-ecobati.com/medias/upload/files/soxiwiv.pdfIn PDF document text
- http://a-daily.jp/app/webroot/contents_img/files/mifuxodamowobexodibapuzoj.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613da7a21a3a0---45529893413.pdfIn PDF document text
- http://vetusmeter.com/images/upload/File/14538213384.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/puxexezik.pdfIn PDF document text
- http://kledingindex.nl/images/uploads/xelezemulasibogap.pdfIn PDF document text
- http://stcforanebanglore.smcim.com/www/js/ckfinder/userfiles/files/26171426343.pdfIn PDF document text
- https://wolfgang-photography.com/userfiles/files/nafitena.pdfIn PDF document text
- http://hondasushi.com/uploads/files/20257946787.pdfIn PDF document text
- https://aymsoft.us/aym_image/files/jimebomobojadiwikab.pdfIn PDF document text
- http://op-gold.com/ck_image/files/duwibesapugosip.pdfIn PDF document text
- https://paymentor.nl/uploads/file/28994835643.pdfIn PDF document text
- https://motoquadro.de/userfiles/file/pebududeb.pdfIn PDF document text
- http://myslizdrave.com/soubory/72609380497.pdfIn PDF document text
- http://tiszaladany.hu/upload/file/wewagekowode.pdfIn PDF document text
- https://lacgl.org/upload/editor/file/gubipisesimaxobega.pdfIn PDF document text
- http://daieimotors.com/js/upload/files/55493671609.pdfIn PDF document text
- https://peltonfell.org.uk/ckfinder/userfiles/files/zipagezi.pdfIn PDF document text
- https://seger.cz/userfiles/file/64153721675.pdfIn PDF document text
- http://dogwarts.ru/sites/default/files/file/rarivokubugulurob.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=descargar+reproductor+de+video+gratis+para+androidPDF 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_off0000d8c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C0 | 18956 bytes |
SHA-256: a43aee639ee073676605fb2eaa09fbe12698500cafa79180f2fc3787dbfc0bae |
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font_01_sfnt_off000108e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108E4 | 10808 bytes |
SHA-256: 0f0cf8970ee9089a5bada4bb2ed1e0aad990f4f5923c0eec74473103a8e36009 |
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font_02_sfnt_off000121cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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