MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised WordPress sites. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the overall structure and heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://studioboscono.it/userfiles/files/23005265235.pdf In PDF document text
- http://doradcyprawni.com/images/pliki/35921946422.pdfIn PDF document text
- http://mikailang.com/userfiles/file/20210728051413_1959077832.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161198410e6e64---borelugamewelazoj.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9711a9398b---54642650018.pdfIn PDF document text
- http://degrossier.nl/uploads/file/suparisal.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160e58881f110f---80676728569.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/ee796ec134d7537698200e4fbc826875/18671736366.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/nesone.pdfIn PDF document text
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160766f48eafbf---vitox.pdfIn PDF document text
- http://bilmatbasim.com/userfiles/file/verof.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607760839f779---96915466268.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/52eb3257496bc4ca773a74d9046b18bc/33350713450.pdfIn PDF document text
- http://uforoi.com/app/webroot/uploads/files/17435905108.pdfIn PDF document text
- http://aktasmatbaacilik.com/resimlerfiles/sozemeze.pdfIn PDF document text
- https://ou-ravda.com/ckfinder/userfiles/files/tibegerilimudewalofipa.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=jana+gana+mana+lyrics+english+pdfPDF link annotation
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a3f0bf25d2---nifukobipirufiwewebuz.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_off0000e717.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE717 | 10956 bytes |
SHA-256: 07e7707d7faf5e8bd32aab1c06c0421cd6a34eab08e2cd6c155d1e7236e1a0cb |
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font_01_sfnt_off0001000f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1000F | 20924 bytes |
SHA-256: 6f0dc567dcfe9ea17c7a19fb0dae1c28073ee26abc6bc65816972fd42cafdac4 |
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font_02_sfnt_off000136f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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