MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are part of a link farm. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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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://thcscatquea.hoaiduc.edu.vn/ckfinder/userfiles/files/rapiteve.pdf In PDF document text
- https://myparrotfood.com/user_files/files/8441425384.pdfIn PDF document text
- http://julianina.dk/upload/file/57747886563.pdfIn PDF document text
- http://sbstroy53.ru/img/files/17923579813.pdfIn PDF document text
- http://artin-intranet.com/ckupload/files/55680235115.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d834409ed2---86398855252.pdfIn PDF document text
- https://cbdc.co/uploads/ckfinder/userfiles/files/rokafovogudateva.pdfIn PDF document text
- http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/061041331037.pdfIn PDF document text
- http://sd-admin.fazendapenaazul.com/ckeditor/uploads/files/polofevewedunanugojesewe.pdfIn PDF document text
- http://dolphinkorea.com/files/files/56340532015.pdfIn PDF document text
- https://heureka-cz.eu/files/zixewu.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/kedakevegunagamorixigoba.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd52fb878c---18342356732.pdfIn PDF document text
- http://indianspringhomes.net/userfiles/files/dosikuvetudarexak.pdfIn PDF document text
- http://jurabos.nl/include/editor/file/dazidikaxalomidado.pdfIn PDF document text
- http://palazzodiaz.com/userfiles/files/kasoza.pdfIn PDF document text
- http://egyptlance.com/userfiles/file/80528309350.pdfIn PDF document text
- http://sowiik.pl/userfiles/file/xiduwawotigagujoruvanitax.pdfIn PDF document text
- https://skyzoan.com/cake/beta/userfiles/file/28634729149.pdfIn PDF document text
- http://otpetye.com/images/shared/file/segogiwewowubiwuzotif.pdfIn PDF document text
- https://beaszemin.com/files/54832040479.pdfIn PDF document text
- http://burningspearmarketplace.com/js/ckfinder/userfiles/files/tifasidiw.pdfIn PDF document text
- http://avanti-kuhni.ru/upload/files/77006594296.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=download+pokemon+ultra+sun+decryptedPDF 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_off0000c105.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC105 | 10976 bytes |
SHA-256: 1e79e0d0bcf9645b777d763eb4ded9ede99160a6a49b5b167ba5dbfb1f168483 |
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font_01_sfnt_off0000da9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA9B | 18468 bytes |
SHA-256: b7e092d32d7643d0f7e69e1e1d5fa426329a243bba442d2f97a6a32b008a38f6 |
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font_02_sfnt_off00010a98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A98 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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