MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. It also features numerous external URLs, many of which appear to be part of a link farm designed to obscure the ultimate destination, likely a phishing page or malware download. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9945
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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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 https://crewmak.ru/uplcv?utm_term=phantom+self+pdf PDF link annotation
- http://gimhaejazz.com/fckeditor/userfiles/image/87047371767.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/a123019b7b5302030350c3ad91c78a80/57824149351.pdfIn PDF document text
- http://charolais-hessen.de/write/userfiles/file/fupodituwalup.pdfIn PDF document text
- http://meghdoothsuzuki.com/uploads/13647328798.pdfIn PDF document text
- https://ecoledesgourmets.com/userfiles/file/49360268098.pdfIn PDF document text
- http://haiqi-machine.com/d/files/bixawevidinovu.pdfIn PDF document text
- https://biocenfis.es/uploads/assets/file/niradobozapivi.pdfIn PDF document text
- http://tongchangkj.com/uploadfile/file///2021090406331930.pdfIn PDF document text
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/gufotesowipu.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/44d5cacf8b8f05e0d4dee4079711047a/roxowoxowulatidodak.pdfIn PDF document text
- http://bangiyaparishadtoronto.ca/bpt/editor/uploadfiles/71104853557.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/95975246095.pdfIn PDF document text
- http://skisun.it/userfiles/files/14003869687.pdfIn PDF document text
- http://solarwindependence.com/ckfinder/userfiles/files/pikerexugodakiwevevi.pdfIn PDF document text
- https://ideylia.fr/uploads/file/kifomofekomuviv.pdfIn PDF document text
- http://gpkoaee.ru/ckfinder/userfiles/files/99740292523.pdfIn PDF document text
- http://simkoongschool.com/uploads/editer/files/1503468647.pdfIn PDF document text
- http://rkmaster.ru/uploads/files/ruxomumexo.pdfIn PDF document text
- http://sswjeans.com/files/2257351992.pdfIn PDF document text
- https://lyubomiradineva.com/files/file/61815631703.pdfIn PDF document text
- http://piannocreativo.com/js/new/fckeditor/userfiles/file/34620519362.pdfIn PDF document text
- http://ngnjl.com/userfiles/files/vivepas.pdfIn PDF document text
- http://creaorganization.com/depo/sayfaresim/file/74273485201.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog/file/81424143791.pdfIn PDF document text
- http://frankslawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/67414514403.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3FA | 16512 bytes |
SHA-256: 95d0922a5b3f345c1d6d2a9036590f6b2bebb17dff4869bdf79bb7fce31b386f |
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font_01_sfnt_off0000ddb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f5c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5C6 | 16232 bytes |
SHA-256: 01cd0e4798e93fb086042d610f43ddeed7bf091af48aa863f5c4a4f61b651684 |
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font_03_sfnt_off00010ba0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA0 | 10572 bytes |
SHA-256: 661876350c7d6882cb8ee7e6639ec934a65751c6b1832029935d15f9e5991b27 |
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