MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external links, including one pointing to a potential APK download, suggests the document is designed to trick users into downloading further malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the idea that the document is part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://synerhu.ru/uplcv?utm_term=s+note+apk+for+any+android PDF link annotation
- http://szybkieprawko.pl/szybkieprawko.pl/user/admin/fck/file/jivasopotidesa.pdfIn PDF document text
- http://etepi.pt/js/ckfinder/userfiles/files/14745228695.pdfIn PDF document text
- http://mega-treid.com/userfiles/files/lesazipoziniregosejipipew.pdfIn PDF document text
- https://angelsforwarriors.org/userfiles/files/pimow.pdfIn PDF document text
- https://gitteszoneklinik.dk/ckfinder/userfiles/files/pafuvun.pdfIn PDF document text
- http://malabarisproducoes.com/arquivos/files/govatazodasinev.pdfIn PDF document text
- http://splogservice.ru/content/file/mured.pdfIn PDF document text
- http://meubelenindex.nl/images/uploads/zisipi.pdfIn PDF document text
- http://opgzvh.hr/upload/file/seresebogunagotumorur.pdfIn PDF document text
- https://www.highlandernepal.com/assets/ckfinder/userfiles/files/wobezejepo.pdfIn PDF document text
- http://zapatosperezcabrera.com/ckfinder/userfiles/files/66682549728.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/161329dfe41faa---jutaxekepixo.pdfIn PDF document text
- https://dolaodong.com/userfiles/file/69080860590.pdfIn PDF document text
- https://suncables.co/images/file/dudevukexinigabo.pdfIn PDF document text
- http://kisito.com/userfiles/file/xorubazasowiv.pdfIn PDF document text
- http://ebd.su/UFD/7623/files/67491093269.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/87030299697.pdfIn PDF document text
- http://liebherr-tr.com/userfiles/file/vakuvorinewusowosiz.pdfIn PDF document text
- http://cmorshomecareassociates.org/uploaded_files/userfiles/files/25069893038.pdfIn PDF document text
- http://kowalstwwo.pl/public/cms/images/file/demovoxikekatenaluvikepe.pdfIn PDF document text
- http://sjzhtchem.com/upload/files/84176210006.pdfIn PDF document text
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/25038555833.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/pilolalosurelatidogabelef.pdfIn PDF document text
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/kurikiterozum.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_off0000f8f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8F0 | 10556 bytes |
SHA-256: 90457f43e927982b2f9a79dabaffc37b434eece5e0607a4e102adeb0f1b2f76d |
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font_01_sfnt_off00011132.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11132 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012944.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12944 | 18196 bytes |
SHA-256: 77f9d73cee17d4f21b34f76502b53b5d7faac25bb98b242e9194b7b63ff676fb |
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