MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a high number of embedded URLs, many pointing to disposable or compromised hosting, indicating a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. The presence of multiple PDF-specific heuristics related to URI and link farms supports this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://nomylo.ru/uplcv?utm_term=love+shayari+2021 PDF link annotation
- https://tomaszbizon.tomaszbizon.pl/web/uploads/files/joweteborexavev.pdfIn PDF document text
- http://intranet.uts.edu.co/portal/app/ckfinder/userfiles/files/40053409606.pdfIn PDF document text
- http://dioblina.eu/userfiles/file/88851531420.pdfIn PDF document text
- http://lineshare.net/upload/files/20210919065444.pdfIn PDF document text
- http://lindseyderence.com/userfiles/files/binepatafizot.pdfIn PDF document text
- http://usateatop.com/_upload/files/femanoxumu.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161314e1adc59b---votuvesoxirire.pdfIn PDF document text
- http://surestegc.org/documentos/file/46893607096.pdfIn PDF document text
- https://enilubricant.hoakhanh.vn/uploads/image/files/77888087333.pdfIn PDF document text
- http://bsa-billiard.by/images_from_html_editor/file/kizolapudonomowareduju.pdfIn PDF document text
- https://www.antoniopopolizio.it/ckfinder/userfiles/files/safonosibomowogotaluz.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/fewaxezexupeditepam.pdfIn PDF document text
- http://girc.ncue.edu.tw/ckfinder/ckfiles/files/pufinakamomedowujilu.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/501d38f973e2463d8851cd1e1fe0d85d/dusofozuk.pdfIn PDF document text
- http://stickerbarcode.com/file_media/file_image/file/77217946307.pdfIn PDF document text
- http://lianbang123.com/uploads/files/202109110303565493.pdfIn PDF document text
- http://bluebiz.kr/userData/board/file/mumonunezuzezukurap.pdfIn PDF document text
- https://novitas.ro/files/mokozuv.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613c9deb4af39---8558963859.pdfIn PDF document text
- http://konditsionery-reutov.ru/upload_picture/file/totikugavikotetas.pdfIn PDF document text
- http://enjoy.sk/editor_uploads/system/files/zijudokuxarutelidibinezu.pdfIn PDF document text
- https://pachetedeturism.ro/images/files/lidusizugan.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_off0000e741.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE741 | 18368 bytes |
SHA-256: 82cf5295271432b138d39bc4569a524a44af3268be140a83fc620ed063824176 |
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font_01_sfnt_off00011737.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11737 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012f4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F4E | 10388 bytes |
SHA-256: 5b4ec3948c120a3a7851c61b720d0d6518ea8c28d94094d7ce5e33d3d0dab3d9 |
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