MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a ClamAV signature and an ML classifier. It contains numerous links, many pointing to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure indicate an attempt to distribute malware or conduct phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16073913d74d98---77061905783.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b41f5b1874c---62647817381.pdf
- https://anmimar.com/royal/userfiles/file/66982186491.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1607bbfa8deb4d---zobuwoguwadaju.pdf
- http://beveragesgs.com/userfiles/file/90015125763.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbf9f96248---91784457406.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e69990f48a---75642739344.pdf
- https://samavetpharm.com/userfiles/files/vunozomafubuvix.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160866dafcc51c---68606450976.pdf
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/8b86421f19d082658a8902edc64e9d7d/mezogole.pdf
- http://jngf.cn/files/file/71552678218.pdf
- https://foundryindia.org/userfiles/file/74958511576.pdf
- http://www.77ice.com/upload/files/mokekunavijajewatasad.pdf
- https://nonbodepsg.com/uploads/files/59922372596.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab0fc03072d---75290022092.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b32c9298d43---82784364693.pdf
- http://geluidsadviesnederland.nl/ckfinder/userfiles/files/pezolubimu.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/f76cb8c16e83e84e60f32140f97e5524/2601928705.pdf
- https://congnghethucpham24h.com/upload/files/xoxavekiso.pdf
- https://feldmann-spedition.de/pics/userfiles/file/20775174954.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7843936c57---54044276128.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/3625b5b92a082c13169d39f435105d19/6739493485.pdf
- http://hanasushimenifee.com/uploads/files/90436232318.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cdcc6dda5---novevux.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/6t1oposb6pbh1q1r6osm49k67l/bunotuvudasupitudazaja.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=serialization+example+in+c%23
- 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_off0000c0bf.bin49c00b1e2eb587b84d0c08fa901d44fac84ee14affb863ca6e8e0712dd2500c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0BF | 10604 bytes |
font_01_sfnt_off0000d8fd.bincf5b6dd8d03d971f771772aed709af0ab62c4e47dfe15949d66352871b8ad7c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8FD | 17224 bytes |
font_02_sfnt_off00010610.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10610 | 16792 bytes |
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