MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised or disposable domains, suggesting a link farm for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' point towards an attempt to redirect users to malicious content, likely disguised as a construction contract agreement.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://mvdeastudio.it/userfiles/files/najototisulukaw.pdf In PDF document text
- http://mobydick-band.de/fckdata/file/bulirolokubunam.pdfIn PDF document text
- http://yejida.com/userfiles/file/xukanexonojifakidemu.pdfIn PDF document text
- https://bitree.com/ckfinder/userfiles/files/xixivamegikeboxututarora.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6eb33531ea---limigoxijap.pdfIn PDF document text
- http://homestationrealty.com/userfiles/files/sikidumo.pdfIn PDF document text
- https://rocksoliddesigns.biz/userfiles/file/76128419820.pdfIn PDF document text
- http://soles2walk.cz/data/file/52255811507.pdfIn PDF document text
- http://cy2hand.com/userfiles/53056498878.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/56400616524.pdfIn PDF document text
- http://chelseacarpet.com/ckfinder/userfiles/uploads/jiliwejupegebaru.pdfIn PDF document text
- https://dukra.sk/editor_uploads/files/86243112569.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bc8636ceb8---ruvoxotidun.pdfIn PDF document text
- http://funperm.ru/content/file/2085084794.pdfIn PDF document text
- http://webursitet.org/Files/file/32435581544.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a28f87dcb1f---dibemisamuboxaluwogibote.pdfIn PDF document text
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/c972aed1b885e4984876b953e835d010/jatubojabifiwikawalu.pdfIn PDF document text
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d16e8a1d24---41668409819.pdfIn PDF document text
- https://solener.info/ckfinder/userfiles/files/7392714291.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16072479377c2e---voludebonaromanem.pdfIn PDF document text
- http://getem.pl/files/file/68096308597.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=construction+contract+agreement+pdfPDF 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_off0000b0cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c8e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E3 | 11048 bytes |
SHA-256: 6218018a7a7f4ea99bd70b8c724e8b910783aceca9cc43479182b3064ec46bd3 |
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font_02_sfnt_off0000e275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE275 | 14368 bytes |
SHA-256: c3f88934d173115620b5075206629237adc5b4ad95454b4a4962f6b9d1fffaec |
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