MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised websites, likely to distribute further malware or conduct phishing attacks. The presence of multiple external URIs and link farm heuristics strongly suggests a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://huntic.ru/uplcv?utm_term=acid+base+and+salt+class+10+important+question+with+answer+cbse
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc6dd963f3---93426944235.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ecf94fb70---fikewadudix.pdf
- http://knuhpharm.kr/userfiles/file/20210710111102.pdf
- https://medtek.vn/storage/file/xizusodujexilisasesupi.pdf
- http://adabaskimerkezi.com/upload/file/50565205753.pdf
- https://snqrsl.quebec/upload/editor/file/82835441646.pdf
- https://museuminiaturesbesalu.com/files/92019288215.pdf
- http://steelfurniturecn.com/d/files/28848331891.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160859e7658666---lekufakutazejitade.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/9e3bf2fee66efe25623d14ede07f5474/23782875309.pdf
- https://tranhtreo.com/images/ckeditor/files/jejuwugolapegoporoxati.pdf
- https://tresonance.org/uploadfiles/61012511941.pdf
- https://cornerstonelaw.eu/userfiles//file/nodumaxutijotirivu.pdf
- http://grupopiscis.com/upload/files/jokilelejepu.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075133fc6f18---gapalip.pdf
- http://nationshield.ae/userfiles/files/ripavufujitivesiv.pdf
- https://adasms.fr/userfiles/file/76336058359.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/161001c2d1f3ea---54673215388.pdf
- http://korean-school.hu/hangul/userfiles/file/41087470274.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/1ef8aa3aa333bda4dd21d949499e0bdb/99634072629.pdf
- http://hutbephottaihaiphong24h.com/upload/files/bolanofade.pdf
- https://implant-drill.com/userfiles/file/92939668304.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/37ls1r58mekhbpv50tc86ou0ea/nexalu.pdf
- http://doo-san.com/userfiles/file/20210722110130.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b7cb.bineede18d3c0979371cb062a806f147976eb6b8e8523ca94bc4dcd55f90011aa6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7CB | 16648 bytes |
font_01_sfnt_off0000e275.bin10a2226198a21b77e2ced962bd5b9859059ae76a5ce5bb4034fa24c841191492 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE275 | 11404 bytes |
font_02_sfnt_off0000fcdb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCDB | 16792 bytes |
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