MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised websites, many of which host other PDF files. This behavior is indicative of SEO manipulation or a phishing campaign aiming to redirect users to malicious content. ClamAV detection and ML classification strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://duetsepolno.pl/userfiles/file/18216967146.pdf In PDF document text
- http://186086.com/upload/files/solafota.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9301b20bb---74905064534.pdfIn PDF document text
- https://gachbinhduong.com/upload/file/97242451899.pdfIn PDF document text
- http://2478.ru/admin/ckfinder/userfiles/files/legigadat.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/ef2ee9cf6fb9fa9a13d7c07602b00860/samepojusipinadikaju.pdfIn PDF document text
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/094db46fb2133e896b248ad941a29ea1/23463905029.pdfIn PDF document text
- http://abwingssuffolk1.com/uploads/files/faxokipofivusafijelemebu.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/ffa3c0c8bae148ac314f057fb6bc38ec/15083289437.pdfIn PDF document text
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/1f99411e5e1dc1231ce1c8b29b66aac7/84645132880.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16110d13b1bd0f---1810073282.pdfIn PDF document text
- http://writtenmail.com/upload_images/file/50516429800.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/0e3c64570594447c092694d4b19cc0dc/12220404880.pdfIn PDF document text
- http://mhinflatable.com/upload/file/zekisobitatixaxole.pdfIn PDF document text
- https://baptistfriends.org/media/4783298346.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fdc25581a96---62394612219.pdfIn PDF document text
- https://bosingels.nl/ckfinder/userfiles/files/xovabanusubebuzenare.pdfIn PDF document text
- http://dogable.de/userfiles/file/rigubusabipidado.pdfIn PDF document text
- http://takeacode.net/user/d41d8cd98f00b204e9800998ecf8427e/file/26675338581.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/38847191536.pdfIn PDF document text
- http://konemara.hu/userfiles/file/98835145510.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/vazuxupij.pdfIn PDF document text
- https://romalasergroup.com/userfiles/files/5652281185.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=%D8%AE%D8%B1%DB%8C%D8%AF+%DA%A9%D8%AA%D8%A7%D8%A8+ielts+band+9+vocab+secretsPDF link annotation
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off00013a8e.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x13A8E | 30208 bytes |
SHA-256: 2c825c985551fc04f554f2ca4612019e86bb42ecd8966d33cbb24cf8e83fc6f2 |
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font_00_sfnt_off000111b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111B4 | 15968 bytes |
SHA-256: b652dba1cab56be1b19feb77c806c9c8924a5fb9dbc7a4ac2757fcbe2490e59b |
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font_02_sfnt_off00017034.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17034 | 17588 bytes |
SHA-256: 8ea3a7240a966de0f4fb3d89bdb7b99ecd948ecb08ee77f9665c2e7dbd890314 |
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font_03_sfnt_off00018b56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18B56 | 10640 bytes |
SHA-256: 4209dda41ebeb74433c55a960f83ee4df499a2460b8f227d53d605f0e239bb4c |
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