MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple compromised CMS upload URLs. These URLs likely serve as landing pages for phishing attempts or to host further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.6220
Heuristics 5
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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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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://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/47f9t0mp4cekmebh9n2l99n1ha/paxipizafaluwo.pdf In PDF document text
- http://yushendesign.com/images_fck/file/1631914595.pdfIn PDF document text
- http://phamtrangia.com/upload/files/wapenipikixe.pdfIn PDF document text
- http://fruitvita.com/files/files/xebetewojerig.pdfIn PDF document text
- https://leresto-niort.fr/images/userfiles/files/tofetapabamunamowapuke.pdfIn PDF document text
- http://gcsiva.com/files/userfiles/file/30472915558.pdfIn PDF document text
- http://logtech.cz/foto/Image/file/6004195349.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/u8477imt8ge9ekt0f0o6crbka2/76195259999.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616104ddbf99a---lunigosivefikamoxenolede.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/h5lhnghr220fhbmf510cm72nj5/kipafiv.pdfIn PDF document text
- http://www.ximangsongthao.com.vn/app/webroot/uploads/files/nuxejok.pdfIn PDF document text
- http://bargiel.com.pl/ckfinder/userfiles/files/93563404288.pdfIn PDF document text
- http://closehorses.com/userfiles/file/39101444283.pdfIn PDF document text
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/xunuzoxowutusalajol.pdfIn PDF document text
- http://infoguard.ru/content/file/pafudasasakupasanipoto.pdfIn PDF document text
- https://888nv.ru/userfiles/file/36659530483.pdfIn PDF document text
- https://rezilta.com/psum/admin/userfiles/file/55278615520.pdfIn PDF document text
- http://baigeleather.com/userfiles/file/nivasivosum.pdfIn PDF document text
- https://estoniapools.com/contents/files/77326661327.pdfIn PDF document text
- http://hotel-gerard-dalsace.com/upload/document/46882005096.pdfIn PDF document text
- https://ijp2.com/contents/files/28410902321.pdfIn PDF document text
- https://www.uflo.edu.ar/ckfinder/archivos/documentos/45321229264.pdfIn PDF document text
- https://b2bircruise.travflex.com/bot/ckfinder/uf/files/68843868862.pdfIn PDF document text
- http://isisthailand.org/file_media/file_image/file/fonotogezizeborafaroke.pdfIn PDF document text
- http://design-klasse.de/ckfinder/userfiles/files/26628384551.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=is+hcl+a+covalent+compoundPDF link annotation
- 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_off0000e446.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE446 | 10704 bytes |
SHA-256: 80a839f3595a5b7b4759eb9b33cf70122d53ae90b96ce1dd5a55494f9e768ae7 |
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font_01_sfnt_off0000fcb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000114cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114CB | 18896 bytes |
SHA-256: 00ede5c754b4ae75e89425f4460d4883b8ab9934f85e091808e9d6583c14cd4f |
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