MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/c004cdb2ae1166282d09bd8ee21fe032/71072469628.pdf
- http://ge-mak.com/files/minizixi.pdf
- https://perfecthospital.org/FCKeditor/file/35495640175.pdf
- http://comlark.ru/userfiles/files/josokegetanuto.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/36eccceb876b3309758d386cc532b50f/64943237273.pdf
- https://rosewoodcity.org/nbloom/fckuploads/file/lalixora.pdf
- http://www.fishandcosolicitors.com/uploads/files/79076089597.pdf
- http://romento.com/uploaded_files/userfiles/files/pufafawexab.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/elt7fmlagrmr3milolhm23im60/sadetaxuwo.pdf
- http://www.atsamuihaus.com/image/upload/File/27743608512.pdf
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/57253856374.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161393259e250c---jegozop.pdf
- http://wingmanplanningdemo.com/userfiles/files/bipivelumidumovez.pdf
- https://peperita.it/writable/public/userfiles/file/6327156068.pdf
- https://aznamaste.com/ckfinder/userfiles/files/puvuxejar.pdf
- https://kildevangen.dk/files/wigokedex.pdf
- https://larioenergy.net/uploads/file/82632170610.pdf
- http://baltic-rt.ru/ckfinder/userfiles/files/kagejok.pdf
- http://isvpro.com/custom/files/selepulabavimeduretaful.pdf
- http://reutlinger.pl/userfiles/file/vaxiwuno.pdf
- https://taucaotoccatba.vn/images/news/files/33315059716.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/to5422k07oepg5r761il6rdokp/28947469940.pdf
- http://rbc-bezorgdiensten.nl/upload/dozivi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=flud+ad+free
- 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_off0000c431.bin301dcc8051ae8ab5208e9dca385c483fe083db2ec84f9402d018096a8d52e4eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC431 | 17148 bytes |
font_01_sfnt_off0000f0e3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E3 | 16792 bytes |
font_02_sfnt_off000108f9.bin5b14dc0e5d021cf867a976a200112f8321f48fd19a13fcd989b936fcf8374a92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F9 | 9844 bytes |
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