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. This script likely facilitates the redirection to a link farm, as indicated by the PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the numerous external URLs. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://garage-ys.info/js/upload/files/mutesifebuxuwivime.pdf In PDF document text
- http://fotografoenricogiampieri.it/userfiles/files/doreduzigudoju.pdfIn PDF document text
- http://nextgenship.net/upload/file/20210904163078761061.pdfIn PDF document text
- http://artgrafika.cz/userfiles/file/pomumejifozabuvebapub.pdfIn PDF document text
- http://osmed.cz/app/webroot/files/files/limujalewiwofi.pdfIn PDF document text
- https://bfull.ru/uploads/files/70942584514.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140b9b0827ba---5509914368.pdfIn PDF document text
- http://homokkepek.hu/editor_up/wizomijutokipoji.pdfIn PDF document text
- https://wanna-drive.nl/files/File/9873458577.pdfIn PDF document text
- https://hoangnhataudio.vn/media/files/46437214559.pdfIn PDF document text
- https://ekransamara.ru/files/38591113591.pdfIn PDF document text
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/juwoweditulomipokafamogab.pdfIn PDF document text
- https://hunde-katzen.at/soubory/91627420016.pdfIn PDF document text
- http://mextro.de/upload/files/fajinowogufuxuxuwopomame.pdfIn PDF document text
- https://kaktutzhit.by/uploads/files/6592328805.pdfIn PDF document text
- http://hftyby.com/upload_fck/file/2021-9-8/20210908095306984086.pdfIn PDF document text
- http://snabsz.ru/ckfinder/userfiles/files/55119987906.pdfIn PDF document text
- http://zgic.ru/!upload/files/kodopimevelosogagonuf.pdfIn PDF document text
- https://tramhuonghanoi.vn/upload/files/51801049341.pdfIn PDF document text
- http://ptsound.com/plugins/ckfinder/userfiles/files/90016733562.pdfIn PDF document text
- http://aylabawadi.ae/userfiles/file/wesunejujatuxetu.pdfIn PDF document text
- http://myoffice2561.sesao33.net/UserFiles/File/xoviwewofefumejumidi.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/m08isup0jsqhl0t9khl75f5hpo/wozataxakixesik.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=the+forever+purge+123PDF 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_off0000df74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF74 | 18604 bytes |
SHA-256: 4a3912623fc951548815113fd08608d9f45560c8112f0e813133ad3dd21f7d54 |
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font_01_sfnt_off0001108d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1108D | 10440 bytes |
SHA-256: 85264be691d10d11b2b064aa343ae5d726dc72f8d12645a7d084753e643e5d5d |
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font_02_sfnt_off0001287d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1287D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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