MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs pointing to various domains, many of which are structured as link farms. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of hosting many links on disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing further malicious content via the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://krisoc.ru/uplcv?utm_term=s10+plus+live+wallpaper PDF link annotation
- http://odpadykj.cz/UserFiles/File/93814581694.pdfIn PDF document text
- http://tamlaproject.com/userData/board/file/8962718599.pdfIn PDF document text
- http://211.129.1.225/system/ckfinder/userfiles/files/noxolog.pdfPDF link annotation
- https://aljazeerahpetroleum.ae/userfiles/files/gidexudazusedim.pdfIn PDF document text
- http://lso-msm.com/userfiles/file/labawisalumok.pdfIn PDF document text
- http://kleinschadenexperte.com/userfiles/file/25167291727.pdfIn PDF document text
- http://astmasme.com/userData/board/file/11513440949.pdfIn PDF document text
- http://vinaktv.com/storage/ckfinder/files/13489356217.pdfIn PDF document text
- http://helloslow.com/data/userfiles/files/pigatixuluvufin.pdfIn PDF document text
- http://jingmingtai.com/filespath/files/20210920123643.pdfIn PDF document text
- http://zhizhencn.com/filespath/files/20210909222851.pdfIn PDF document text
- https://lionkingbali.com/uploads/file/99829976484.pdfIn PDF document text
- https://k-newsletter.com/ckupload/files/zizexenogogel.pdfIn PDF document text
- https://aromamarketing.md/img/files/kipuwa.pdfIn PDF document text
- http://princeworldwide.com/multimedia/userfiles/file/76968923722.pdfIn PDF document text
- https://karlholmbygg.se/UserFiles/files/jajuvowidepugadeborel.pdfIn PDF document text
- https://mhreng.com/userfiles/file/lifanaxetofojose.pdfIn PDF document text
- http://cornucopiafrederick.com/uploads/files/97576595333.pdfIn PDF document text
- https://windsbs.biz/files/file/pewiguzuwifakijo.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/6869857574.pdfIn PDF document text
- https://dmshospital.com/mm_engg/files/vadigadidonupororopas.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/1e7ad519f47697f7b52c772dd8eef199/gelomego.pdfIn PDF document text
- http://www.colormotion.cz/UserFiles/file/rutanerexu.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161410da6d5349---tazuv.pdfIn PDF document text
- https://bitree.com/ckfinder/userfiles/files/riminaruvesopi.pdfIn PDF document text
- http://globalcenterhotels.com/bot/ckfinder/uf/files/8578072834.pdfIn PDF document text
- 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_off0000d2a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2A3 | 18252 bytes |
SHA-256: f4021370c83e35564d00f5f1790b7d51fbce96916f1a59ddd32b00a08dcb77a0 |
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font_01_sfnt_off00010220.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10220 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A37 | 10424 bytes |
SHA-256: 746a2e8115f910540ae7028004811707914aa1314fe75b2573ebc759452b9f82 |
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