MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports its use in a malicious campaign, likely involving phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://hongdanhaudio.com/luutru/files/67614866579.pdf In PDF document text
- https://hosvagyok.hu/userfiles/file/daxibomalebiseg.pdfIn PDF document text
- http://test-immo.com/file/31206455405.pdfIn PDF document text
- http://zlhk.ru/upload_picture/file/97454290637.pdfIn PDF document text
- http://buyyoutubecomments.com/ci/userfiles/files/15615912149.pdfIn PDF document text
- https://phr4u.com/files/31873280734.pdfIn PDF document text
- http://elliptical-trainers.ru/ckfinder/userfiles/files/34945445795.pdfIn PDF document text
- http://nebovsem.ru/app/webroot/files/files/19596259314.pdfIn PDF document text
- http://isvpro.com/custom/files/medifigixedetapojado.pdfIn PDF document text
- http://cosmoscm.com/contents/files/55123276358.pdfIn PDF document text
- http://yoshitomo-kokubunji.com/jcfiles/file/87949597406.pdfIn PDF document text
- http://spadhotel.com/basefile/spadhotelcom/files/48458773312.pdfIn PDF document text
- https://cancelaria.pl/galeria/file/ginirirujagotunebeluku.pdfIn PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/satorusipenilotafomimibuj.pdfIn PDF document text
- https://mtestbd.com/assets/uploads/files/xaxaxovenon.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132e4f15b862---fizoziwuvakigukotepomutiv.pdfIn PDF document text
- http://ordineveterinarivenezia.eu/userfiles/files/55670636127.pdfIn PDF document text
- http://boldogelet.hu/media/rotejatonadaxepatipan.pdfIn PDF document text
- http://shimamura-mail-order.com/userfiles/file/43028470069.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/aad811a8a3619d378bda9c3c297ceec7/52263899043.pdfIn PDF document text
- https://pasarantogel2.com/contents/files/xiligipejugetet.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/2d4323f9ba40866a22e17d2be480861c/31532509138.pdfIn PDF document text
- http://sgo-bage.com/public/files/files/nevijire.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=tekken+7+apk+game+downloadPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cc28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC28 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e43f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE43F | 10468 bytes |
SHA-256: aa3de86fab2686ab8c04f77e9324bdfdec019f5c8693645c54cf6a8beb5aa6d6 |
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font_02_sfnt_off0000fbe4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBE4 | 17880 bytes |
SHA-256: ef05e263e6d2761e68f5e6a1713fe2a2ea6ad1ca28a71439cd1ba1ca8dcd1652 |
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