MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and multiple external URIs, with one heuristic identifying it as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution by directing users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://huijingweb.com/upload_fck/file/2021-9-2/20210902120041386620.pdf In PDF document text
- http://aftp.bg/userfiles/file/bajekigabesamewot.pdfIn PDF document text
- http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/62207431147.pdfIn PDF document text
- https://bloomlight.pl/_bloom/file/vafakutag.pdfIn PDF document text
- https://bimstudioinc.com/media/files/zogiregunavojep.pdfIn PDF document text
- http://inkjetartandimage.com/Uploads/file/letamitazop.pdfIn PDF document text
- http://samtekelektrik.com/files/jalimupezuvopepopada.pdfIn PDF document text
- https://cursosadistanciayonline.com/medios/files/roverokejimeg.pdfIn PDF document text
- http://lnhaihui.com/userfiles/file/20210913142340_1739037110.pdfIn PDF document text
- http://photo-poligrafic.ru/ckfinder/userfiles/files/xizutesofojo.pdfIn PDF document text
- https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/domotibaki.pdfIn PDF document text
- http://manu-transport.com/documents/file/pikeganizipilupifalola.pdfIn PDF document text
- https://adikkeempat.com/contents/files/tawanusejab.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614914f48d15f---96842764217.pdfIn PDF document text
- https://sheenabusesandcoaches.com/userfiles/file/70057445604.pdfIn PDF document text
- http://xn--h1aaebajlcgx.xn--p1ai/sadm_files/nopenek.pdfIn PDF document text
- http://topstec.com/d/files/21473451680.pdfIn PDF document text
- https://funstore.dialog.org/userfiles/file/7479310395.pdfIn PDF document text
- http://vitalchurchesinstitute.com/files/file/63749721750.pdfIn PDF document text
- http://grandwatergatehotel.com/upfile_hotel/files/vejirufapeme.pdfIn PDF document text
- http://barexkft.hu/userfiles/file/8834501708.pdfIn PDF document text
- https://www.karelo.com/uploads/File/gisam.pdfIn PDF document text
- https://subded.org/userfiles/file/71243850549.pdfIn PDF document text
- http://archiw.gbpopatowiec.pl/img/upload/files/20780582320.pdfIn PDF document text
- https://autoradiator.mn/uploads/ckfinder/files/57208668377.pdfIn PDF document text
- https://jeneifogaszat.hu/cikkdata/files/70561142117.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=j210f+flash+file+4filePDF 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_off0000f1b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B5 | 18588 bytes |
SHA-256: e728c8e635e1a2ca7ccb63cbfe202fc656a615127a101d07347bfd11e12070e1 |
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font_01_sfnt_off00012186.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12186 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001399d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1399D | 10252 bytes |
SHA-256: e092e2fafe2ccdaea1fda821b9e81b2ac3b49aead044e808534c0d55f06c5ac7 |
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