MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, presents a deceptive download button and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://philabc.ru/uplcv?utm_term=123mkv+a+flying+jatt PDF link annotation
- https://nhahangthanghuong.com/uploads/files/kefivolavavigokitef.pdfIn PDF document text
- https://lotte-ppta.net/beta/assets/file/44640927937.pdfIn PDF document text
- http://ngor2-3.com/file_media/file_image/file/kevirijagaj.pdfIn PDF document text
- https://lanjutpt1.com/contents/files/losifuwikul.pdfIn PDF document text
- http://nowyhotelik.pl/userfiles/file/sidonurufo.pdfIn PDF document text
- http://caphegiabao.com/upload/fck/file/97144490226.pdfIn PDF document text
- http://smartickgroup.com/userfiles/41300563477.pdfIn PDF document text
- https://fong-cai.com/upload/files/rosonolezowuw.pdfIn PDF document text
- http://datavincity.com/uploads/ckfinder/files/44915229206.pdfIn PDF document text
- https://myagenda.myagenda.cz/pictures/editor/files/xupevasixelami.pdfIn PDF document text
- http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/66345164745.pdfIn PDF document text
- http://motopujcovnateplice.cz/userfiles/file/senajapibinigerovedizosu.pdfIn PDF document text
- http://creationart.hu/files/file/55566536867.pdfIn PDF document text
- http://arcos-eff.it/userfiles/files/jegipawafukazabowe.pdfIn PDF document text
- http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/nibegef.pdfIn PDF document text
- https://ecoquimica.cl/dinamicos/uploads/file/10916597799.pdfIn PDF document text
- http://educasters.co/ckfinder/userfiles/files/vezazutanijuzi.pdfIn PDF document text
- http://leguido.net/files/pudaforezekanezorugokamoj.pdfIn PDF document text
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613efcc2d19e9---tibeluwafegewi.pdfIn PDF document text
- http://ministerium.pt/files/2705217420.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/58089465205.pdfIn PDF document text
- https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/30580685406.pdfIn PDF document text
- https://krzczonowice.pl/gfx/file/47278794657.pdfIn PDF document text
- 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_off0000c11b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC11B | 10684 bytes |
SHA-256: a9ff94b072f452b4337263391d4ffcd00a5d7196a0803c65ff1a5ed7f2afbeac |
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font_01_sfnt_off0000d992.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD992 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f1a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A4 | 17496 bytes |
SHA-256: a832fffeca5820d8069a92e3a2e2dc8a919631c1ca194ef4da8518435f006e7d |
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