MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, with many pointing to unknown or potentially malicious domains, suggesting it functions as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests the document's purpose is to host a collection of links, likely for phishing or distributing further malware, aligning with the 'Spearphishing Attachment' technique.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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://nuuts.mn/uploads/assets/43505034691.pdf In PDF document text
- https://photofetimages.com/gupuwun.pdfIn PDF document text
- https://zegaoyun.com/calisma2/files/uploads/dawuluzalepixat.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/62632385155.pdfIn PDF document text
- http://unitez.net/images/newtech/files/munebeduwolenorexo.pdfIn PDF document text
- http://sanyosushiglendora.com/uploads/files/belixoxedemida.pdfIn PDF document text
- https://nbretail.com.vn/ckfinder/userfiles/files/limebemuxozozanazurux.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/fogizuju.pdfIn PDF document text
- http://dancephoto.ru/userfiles/files/lifiradaveteposuzez.pdfIn PDF document text
- http://elskenecologie.nl/files/josefe.pdfIn PDF document text
- https://soudureornementalelauziere.com/upload/editor/file/bezetujalonawebudiwok.pdfIn PDF document text
- http://hasdeu.md/data/userfiles/files/vogev.pdfIn PDF document text
- http://bobas24.pl/Upload/file/48514229809.pdfIn PDF document text
- https://ever-progress.com/upload/files/25465220142.pdfIn PDF document text
- http://auto-rad.pl/userfiles/file/77548605033.pdfIn PDF document text
- http://ewtch.com/upload/files/4859282123.pdfIn PDF document text
- https://drishtinetcom.in/FCKeditor/file/79086554330.pdfIn PDF document text
- https://kclandscapes.com/ckfinder/triplebuserfiles/file/sofakol.pdfIn PDF document text
- http://votava2.altrodesign.eu/ckfinder/userfiles/files/rezizasabe.pdfIn PDF document text
- http://fantacyhandicraft.com/userfiles/file/75850892249.pdfIn PDF document text
- http://patriabrno.cz/userfiles/files/xofivowu.pdfIn PDF document text
- http://z-him.ru/userfiles/file/41199502569.pdfIn PDF document text
- http://lednotice.com/userData/board/file/7845095133.pdfIn PDF document text
- http://4bzsoftware.com/Images_upload/files/83482266673.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=best+game+booster+for+pubg+mobilePDF 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_off0000d745.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD745 | 17272 bytes |
SHA-256: e9ea46edbc282ce307144cd87d62c583c2dd87510aeb6c6ee7fdc32314bc0dbc |
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font_01_sfnt_off00010414.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10414 | 10888 bytes |
SHA-256: 0b6899bc782fdd55670d2454b3d29d50c0b7cc6f3ed90bdeaa68dc3d27aac3d9 |
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font_02_sfnt_off00011d22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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