MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains embedded JavaScript, suggesting it attempts to execute code within the PDF viewer. The presence of numerous external URIs, many pointing to PDFs on potentially disposable hosting, indicates a link farm or redirection mechanism, likely used for phishing or distributing further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://bharatbiodiesel.com/userfiles/file/juwagemem.pdf
- http://pc-driver.ru/userfiles/files/39023867089.pdf
- http://dmkert.hu/files/file/15752119107.pdf
- http://ukrkarta.ua/fckeditor/userfiles/file/sogebixiz.pdf
- https://royal-art.pl/uploads/userfiles/files/84824801106.pdf
- http://dental-forum.ru/userfiles/file/54522256719.pdf
- https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/24403107703.pdf
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613069f1c32ed---lawufezagulixazagesipixis.pdf
- http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/4513696405.pdf
- http://popmetre.com/news/files/zigidinimopidezusosagub.pdf
- https://heart-calligraphy.com/uploads/files/202108311750466611.pdf
- http://www.peritaonline.es/ckfinder/userfiles/files/71893575516.pdf
- http://nature-revive.org/files/file/88552195995.pdf
- http://saatgaamkansarasamaj.com/admin/uploads/files/88942314435.pdf
- http://prochem.vn/images/uploads/files/52200876550.pdf
- http://consorzio-csa.it/userfiles/files/zudinuloxiwejapovajusuge.pdf
- http://studiotravenzolo.it/userfiles/files/7706791246.pdf
- http://teleserviciomalaga.com/ckfinder/userfiles/files/movimejarenelikazapoj.pdf
- http://baltic-rt.ru/ckfinder/userfiles/files/tomokofemeleberamufexi.pdf
- http://www.insight-assessment.com/ckfinder/userfiles/files/xezozanuvarizaripoka.pdf
- https://contemporaryteas.in/admin/uploads/file/zekimutufurawuzakikutoj.pdf
- http://hstechno.com/userData/ebizro_board/file/7845243128.pdf
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/83330822928.pdf
- http://kocavietnam.com/upload/files/naweduforisonepapakotu.pdf
- http://myphamlulanjina.com/upload/files/rafoxadixewetorovabu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=miui+12.5+telegram
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4e4.binae039aa9f26456e6db1a4de3ae54f957ea795dfccd50792ee5fe5286e72666c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E4 | 10524 bytes |
font_01_sfnt_off0000fcff.bind42321f80cf3af16f99e7abdbf71e62652a311e6ccdf6c962f818c465a6cb9a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFF | 21348 bytes |
font_02_sfnt_off0001354f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1354F | 16792 bytes |
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