MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains numerous external URIs, many pointing to suspicious domains, suggesting a link farm or redirection mechanism. While no scripts were explicitly extracted, the PDF structure and heuristic firings like 'PDF_SEO_DISPOSABLE_LINK_FARM' point towards a phishing or malware distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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://www.institutvzdelavani.cz/files/fijifude.pdf In PDF document text
- http://zehanbiopharma.com/upload/files/fulixuzedobalawabikufir.pdfIn PDF document text
- https://shreegroupco.com/userfiles/file/rugisakulomepawafu.pdfIn PDF document text
- http://fosterfreezesantarosa.com/uploads/files/34243128550.pdfIn PDF document text
- https://pratham.one/file/43988002578.pdfIn PDF document text
- https://schodyperfekt.pl/user_upload/file/27315944773.pdfIn PDF document text
- https://relans-nn.ru/images/docs/file/luxifinagisegof.pdfIn PDF document text
- http://chochosanencino.com/uploads/files/vuwidiremuzerafewejigazi.pdfIn PDF document text
- https://ddnepal.com/assets/userfiles/files/dejeribefebixur.pdfIn PDF document text
- http://thietkewebsite.btccorp.vn/uploads/files/voporitarivimudulazito.pdfIn PDF document text
- http://ambulatorioveterinarioilprato.eu/userfiles/files/fufeleposopi.pdfIn PDF document text
- http://www.bash.cl/media/file/fotirab.pdfIn PDF document text
- http://trunglam.vn/uploads/userfiles/file/96844378041.pdfIn PDF document text
- https://kominove-centrum.cz/media/files/file/dilulukugov.pdfIn PDF document text
- http://www.europesolidaire.eu/userfiles/files/43597362604.pdfIn PDF document text
- http://comlark.ru/userfiles/files/mokoxeluge.pdfIn PDF document text
- http://praguynakorn.com/praguynakorn/picture/datapro/files/wepagoroxovumewixar.pdfIn PDF document text
- http://zhouzhuanx.com/v15/Upload/file/20219182046132801.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/161460bc9c9292---lefovibonuzazavijeru.pdfIn PDF document text
- http://studiorestagno.eu/userfiles/files/61019897572.pdfIn PDF document text
- http://yao-cheng.com/uploadfiles/20210916035627.pdfIn PDF document text
- http://dwornawodzie.pl/userfiles/file/demidom.pdfIn PDF document text
- http://www.scsk12.org/policy/files/files/borizopozevox.pdfIn PDF document text
- https://nhatthiengroup.com/files/uploaded/files/12143612679.pdfIn PDF document text
- http://ubytovna-krumlov.cz/userfiles/file/52933431912.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614ea22fe00f9---vadenawaki.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=123+go+malayalam+moviesPDF 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_off0000eb8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB8B | 22172 bytes |
SHA-256: b629f966975f70e68d186a7c8a7702cbff9556703f442b5965fb4a76b050d23f |
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font_01_sfnt_off000124c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C7 | 10576 bytes |
SHA-256: ed366e929c346c59f633781521a5dd6b6fd28c444ab48abc2930c9831cc476f9 |
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font_02_sfnt_off00013d08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D08 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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