MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to distribute malicious content. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document likely attempts to trick users into installing remote support tools, a common tactic for phishing or malware delivery. No scripts were extracted, but the PDF structure and URL patterns strongly suggest an attempt to exploit users through deceptive content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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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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://3eyamaichi.com/upload/ckfinder_temp/files/20210910171956.pdf In PDF document text
- https://maturana.cl/upload/file/lutiv.pdfIn PDF document text
- http://csn-alliance.com/data/files/8707075085.pdfIn PDF document text
- http://jilienjrubin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/naderatidezeba.pdfIn PDF document text
- http://gardens-spa.com/user_pict/file/bopeponesulularozof.pdfIn PDF document text
- http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/061939508195.pdfIn PDF document text
- http://videocycling.info/files/file/maveketubebejigumosiwaj.pdfIn PDF document text
- http://nj-rshb.com/v15/Upload/file/20219175494758.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/735908315c704591db9449cc5e6031cf/wililiwi.pdfIn PDF document text
- http://maginsaatmetal.com/resimlerfiles/kawemepugamuzoro.pdfIn PDF document text
- https://aecvfcom.nrgence.com/upload/userfiles/files/kerivafux.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/brdu36nkool6rbsnkim9nnsrg7/gusuregefopo.pdfIn PDF document text
- http://studioturina.com/userfiles/files/4440455096.pdfIn PDF document text
- http://tabletopad.com/images/file/lizedupakiminezadofodu.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/89200393064.pdfIn PDF document text
- https://biomedchita.ru/imeg_master/file/tatino.pdfIn PDF document text
- http://casaatlantida.com/userfiles/file///semopajine.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/gesowugovek.pdfIn PDF document text
- http://tetobox-budapest.hu/uploads/files/wokufeketuzexolotuvapiv.pdfIn PDF document text
- http://portaldeaquidauana.com.br/ckfinder/userfiles/files/30428799672.pdfIn PDF document text
- https://epagneuls-bretons.fr/caningest/images/file/77740564932.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=mobile+to+mobile+screen+sharingPDF 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_off0000e123.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE123 | 17968 bytes |
SHA-256: c1e378173a0b0509b1136bfafe35b2914991b1aaa9373481552fcb0fb8a46254 |
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font_01_sfnt_off00010fe3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FE3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127FA | 10808 bytes |
SHA-256: a28bf1711df1e94235d70c5d177b6ebd4b394149cdc9f61a26809de1d944eff4 |
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