MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM and the numerous unknown URLs suggest a phishing or spam campaign aiming to lure users to potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://ccsctda.com/ckfinder/userfiles/files/20210917_084956.pdf In PDF document text
- https://cancelaria.pl/galeria/file/fifidumekegi.pdfIn PDF document text
- http://newo.ru/files/files/59248561503.pdfIn PDF document text
- http://mizuho-co.net/file/ck/files/37115380994.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/natubulopalawusuxolalesal.pdfIn PDF document text
- http://csc0731.com/userfiles/file/20210909055911_cyx5dk.pdfIn PDF document text
- http://luisacortesearchitetto.it/userfiles/files/xajedadazov.pdfIn PDF document text
- http://galaxyjewel.cn/uploadfile/files/12154812518.pdfIn PDF document text
- http://duancanhotot.com/upload/files/polujikubo.pdfIn PDF document text
- http://weilandvloeren.nl/fckimages/ledukositujenevil.pdfIn PDF document text
- https://miltonmattox.com/userfiles/file/figug.pdfIn PDF document text
- https://mayphotocopydogia.com/upload/files/25632476466.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/rezozewevoko.pdfIn PDF document text
- https://hanurichurch.org/ckfinder/userfiles/files/63337200303.pdfIn PDF document text
- https://nutstudio.it/userfiles/file/98697633843.pdfIn PDF document text
- http://bangdinhphucat.com/quangbasanpham/app/webroot/upload/image/files/pusadobegolovamugupij.pdfIn PDF document text
- http://www.creativitaecomunicazione.it/js/lib/ckfinder/userfiles/files/kowubefeb.pdfIn PDF document text
- http://cmsrecuperocrediti.it/images/file/nawefanax.pdfIn PDF document text
- http://winterwonderlandzundert.nl/uploadimages/files/kukerazujoma.pdfIn PDF document text
- http://skonasystems.com/userfiles/file/74093765618.pdfIn PDF document text
- https://viessmannboilers.ca/fck_upload/file/22688721874.pdfIn PDF document text
- http://mayepnuocmia.vn/data/ckfinder/files/fufibiditilot.pdfIn PDF document text
- https://akonis.ch/userfiles/files/weretofigapobikowujudat.pdfIn PDF document text
- http://liburnia.pl/userfiles/file/23658650392.pdfIn PDF document text
- http://yansyuan.com/UserFiles/images/files/temosugexenebawe.pdfIn PDF document text
- http://wisdomtours.net/upload/file/piguradipudizuwujor.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=shadowgun+deadzone+apkPDF 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_off0000b387.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB387 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB9E | 10580 bytes |
SHA-256: 7fffdf237b60a47d78773598547fa3ffe6296447a43b2c3f282bb6a49cd12e6d |
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font_02_sfnt_off0000e395.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE395 | 14584 bytes |
SHA-256: fdaa4c5027ce7a0e0facd9e27fb6f11dda28554f5634011bd9e591b0b12f25bb |
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