MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. It contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://ketchas.ru/uplcv?utm_term=esquema+de+vacunacion+2017+mexico+pdf PDF link annotation
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160829ba8794bb---15909673588.pdfIn PDF document text
- http://creaorganization.com/depo/sayfaresim/file/84092825522.pdfIn PDF document text
- http://renovator.cz/files/file/1865488737.pdfIn PDF document text
- https://crbz.ru/userfiles/file/vexogotizolukamedujelos.pdfIn PDF document text
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/7a7ab370c1f1366c875db2ccf45c0167/zekavanupuv.pdfIn PDF document text
- http://agro-pasz.pl/ckfinder/userfiles/files/donariz.pdfIn PDF document text
- http://ahkjt.com/upfile/file/77191776056.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2bd16fac7---11655440864.pdfIn PDF document text
- http://qkmedica.com/uploads/userfiles/file/tomareloji.pdfIn PDF document text
- http://dailymaydemtien.com/userfiles/files/97691283347.pdfIn PDF document text
- http://cnex.cc/images/blog//file/37895694459.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16090ff1c79524---bepitani.pdfIn PDF document text
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cb15d6eb257---wisokumebes.pdfIn PDF document text
- http://collegium-connect.nl/ckupload/files/18186608757.pdfIn PDF document text
- https://3drm.bg/uploads/pictures/files/86251183801.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/004fdf4906bb75bb84b8ebc832cd240d/rozitijofosomizu.pdfIn PDF document text
- https://calprin.com/ckfinder/userfiles/files/10994388777.pdfIn PDF document text
- https://fotobolfestmeny.hu/mvc/userfiles/file/gapukesuvuzufevijurunexej.pdfIn PDF document text
- https://birudongker.com/contents//files/24828473204.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/57457204733.pdfIn PDF document text
- http://karmand24.ir/basefile/ehotel724ir/files/46821319428.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/vobukexogu.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_off0000bc00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC00 | 11280 bytes |
SHA-256: 8356ce10adce0bcea7b686b1caae2b39caf4cf955f1b05e26f2dd3c747f07a73 |
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font_01_sfnt_off0000d663.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD663 | 17100 bytes |
SHA-256: 52b59ba8b0909e7d0728315b74778dc50fadee599cd1c7c43198c9643f839509 |
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font_02_sfnt_off0001019d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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