MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of multiple PDF-specific heuristics related to link farms and compromised uploads further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://taiwan-tiaya.com/upload/tiaya_official/files/roxadujenijuxonidujugej.pdf In PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/278d30e6f68ce0e5507d14bb7cbdf2cc/1844521533.pdfIn PDF document text
- http://isystemlab.com/admin/ckfinder/userfiles/files/38708800603.pdfIn PDF document text
- http://a-xian-coat.com/uploads/files/202109151111466340.pdfIn PDF document text
- http://www.motocams.cz/ckfinder/userfiles/files/bexitubop.pdfIn PDF document text
- https://csodamalom.hu/files/files/84983469840.pdfIn PDF document text
- http://datcat.vn/2018/file/zasasagapebusenata.pdfIn PDF document text
- http://heldermusic.nl/ckfinder/userfiles/files/63083837933.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16140275100a77---50394485841.pdfIn PDF document text
- https://selapro.com.au/application/third_party/ckfinder/userfiles/files/jisaxorefemogakazerug.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/92057209217.pdfIn PDF document text
- https://heritran.vn/uploads/news_file/33426206730.pdfIn PDF document text
- https://pensiunea-escape.ro/ckfinder/userfiles/files/disaja.pdfIn PDF document text
- https://digbijoynath.in/uploads/userfiles/files/64850426953.pdfIn PDF document text
- https://nepalihemp.com/ckfinder/userfiles/files/2698399258.pdfIn PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/052c143801fd279ae286ec10ca12e3ad/9098310971.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613052ea249e7---24713072343.pdfIn PDF document text
- http://adhdesign.de/userContent/files/20210908045212-woguxewiwufupenudepaz.pdfIn PDF document text
- https://kompaspt1.com/contents/files/milegukiwofebowunatoge.pdfIn PDF document text
- http://minerva-collection.net/files/files/sefopagezovegegoresejuto.pdfIn PDF document text
- https://cv-vezouze.fr/media/file/sawogi.pdfIn PDF document text
- https://centrumschoolka.pl/photos/file/zuleriti.pdfIn PDF document text
- https://vidaleve.ind.br/ckfinder/userfiles/files/45300798067.pdfIn PDF document text
- https://parc-hotel.info/file/37062079234.pdfIn PDF document text
- http://pinzimoniofiumicino.eu/userfiles/files/97356257197.pdfIn PDF document text
- http://esangsok.com/upfile/files/daxuj.pdfIn PDF document text
- https://projektovanje.info/userfiles/file/bisadev.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=data+widget+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_off0000d6a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6A5 | 18532 bytes |
SHA-256: bf86f97d25b2601094f6a76f4b6aa56dfb80f9f14f389c8f64a0266469151788 |
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font_01_sfnt_off0001074e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1074E | 10208 bytes |
SHA-256: c8d0a554432dc9a159f73f7ed5748a1cc5762f91e72e8e9b1209be5f7b8ef786 |
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font_02_sfnt_off00011e32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E32 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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