MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary function appears to be redirecting users to external, potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160764df585ad5---texupuxuxejulibovuwa.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/6c6d89b3ae9085100b148f14d8522da4/99666794574.pdf
- https://myphi.biz/nbloom/fckuploads/file/18840275678.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b48dff080c1---97150094468.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9ec0dac28---17866226830.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b7ee8ad36---33853534214.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/ad08dcb38ee3df1580dde324ed58004a/10692936454.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a88e59c4b18---81886213650.pdf
- http://udmvdpo.ru/images/files/xebesidalukataj.pdf
- http://absolutelyneon.com/userfiles/file/kuxoponatosipelowumij.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/8d9047610ad8e83e2b02cf9bddd1027f/48212255756.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b55fab37e75---76264980344.pdf
- https://biblioteka-koneck.pl/ckfinder/userfiles/files/50283790567.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/739ebd2065306c69ea3ae3b8b51978a1/finomolosivoziviv.pdf
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803a7582930---4800790265.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/cada7b242e3da79abac977812d1dcb91/kaxarifezujopupirenipe.pdf
- http://sylvianapoles.com/clients/e/e6/e63d90d46a840f0b3195f531cec11f6e/File/boloruliribozagej.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/s2vima1a4vtldk9bionjrjjvm3/39681376050.pdf
- http://cherishedmomentphotos.com/clients/8/84/84fe84b553acfcd191e166b7401b6f02/File/39513685328.pdf
- http://jnafarms.com/clients/864068/File/51219939586.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16085d6b98f56a---43120607301.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b091c3bab---42026181173.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=women+and+intuition
- 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_off0000ed5f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED5F | 16792 bytes |
font_01_sfnt_off00010571.bine7d22b26c6cc88b19f80debf491d096c9ff747d95a4efe3a07a2c0ca175b64b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10571 | 17696 bytes |
font_02_sfnt_off00013417.binb7edd0b51c3c109b5d2d25cf4f6b7e64e4edf4ac5d2eb603eb3c956c673836f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13417 | 10188 bytes |
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