MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, likely serving as a distribution point for phishing content or further malware. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
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://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebeb107189---zisexosovod.pdf
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/f816e43107f02614823e2fa11d72cbf6/12865476325.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e622cc0c797---lenorumigu.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160729e70a4c5b---27059883278.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/62b922aabc252be4bb21aa73afbf2aac/67428203819.pdf
- http://mitcostruttori.it/userfiles/files/99293080935.pdf
- http://princeworldwide.com/multimedia/userfiles/file/1929039097.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e380cc8b6---getekarekopeli.pdf
- https://vansuloi.com/uploads/userfiles/file/32034056485.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce7004f0df---27278570204.pdf
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/66f0bc2f9e38edcbf552f83ed4b0ca75/81284154837.pdf
- http://forglass.sk/userfiles/file/76108925242.pdf
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bab23e30fb4---86067394687.pdf
- http://chalappuram.com/userfiles/file/nokanutesipuxabitava.pdf
- https://muzeumkonstancina.pl/attachments/file/18581426514.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160dc36be5d750---6376915912.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160749fb92b374---62591071142.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607df60dcd318---91469562835.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/57e619ecc7dbceddfe6b87e033d66a62/36858177805.pdf
- http://studiofantino.it/userfiles/files/8925862423.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f5bd479f222---jufutamemaraweparizixe.pdf
- http://brianhaymore.com/images/e/file/55369364394.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160776b4ddff81---kupuladujire.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=book+of+mormon+3rd+nephi
- 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_off000214ec.bin16ce8bc24081639cecc96ec81de7b086e7f972952aa67bfa7c2e957b0461ce02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x214EC | 18168 bytes |
font_01_sfnt_off00024393.bin7dce734ae4d101904ea091f6412d1297ec8f7c001e16e02b12caccc77738063a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24393 | 10604 bytes |
font_02_sfnt_off00025b94.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25B94 | 16792 bytes |
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