MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and URL patterns are consistent with a malicious document designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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 https://pistant.ru/uplcv?utm_term=windroye+official+website
- http://dieterheich.de/images/uploads/file/12037826796.pdf
- http://ilink.pl/userfiles/file/jefejajodijotoperaj.pdf
- https://claudiodituri.it/uploads/sutunoxelepododajutu.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16139475e0ef4d---ketemafogegodako.pdf
- http://sireny.net/share/files/84595027725.pdf
- http://tnshoppingbag.com/upfiles/file/motebelidudevaxenurodit.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/1d0b163fed45643632ecb1b81fccca67/rirasu.pdf
- http://altadirezione-consulting.it/userfiles/files/20160707991.pdf
- http://piqiso.ru/userfiles/file/wonafabolozojuzezuk.pdf
- http://circuitoinsulargc.com/documentos/file/davijeri.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4e1f00cee---zoguronosa.pdf
- http://studiosaletta.it/userfiles/files/85936543979.pdf
- http://sinoscaform.com/upload/ckimg/files/202109090418213063.pdf
- https://economiadecomunion.com/ckfinder/userfiles/files/sizupuleboriwate.pdf
- http://coumert.com/images/file/18859002720.pdf
- http://decamiones.com/userfiles/file/gisur.pdf
- http://tearose-kitchen.com/sites/default/files/images/imcefile/rikujejowuvofobuwuju.pdf
- http://tribo.kz/userfiles/File/33724511767.pdf
- https://china-glass-mosaic.com/userfiles/files/20210905_161552.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/amh0lmcafvbqgds1gtfe2jaf96/51286922554.pdf
- http://ipceurope.be/assets/file/11855958678.pdf
- http://kubablimel.pl/Image/files/pelatodezuxasox.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/qbl077skcf2sbr05hvunodfpii/gunoleda.pdf
- http://rana-international.com/userfiles/files/10691144992.pdf
- http://abwrosedale.com/uploads/files/29346556856.pdf
- http://imhyuk.com/imhyukeditor/userfile/file/82696700896.pdf
- 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_off0000b366.bine1a9c853858ddc05418267752d5ecf4b9729e473148c69cb5aa2e622abc3bf0c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB366 | 10804 bytes |
font_01_sfnt_off0000cc7b.bin6887b8f8843239c04e9cb33e11d0a742470eb27a62a9814bfbfc9543e6cfab55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC7B | 16464 bytes |
font_02_sfnt_off0000f60a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF60A | 16792 bytes |
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