MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for delivering malicious content or redirecting users to malicious websites. The presence of numerous external URIs, many pointing to PDF files on various domains, suggests a link farm or redirection mechanism. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://nmcs.ca/userfiles/files/vujora.pdf In PDF document text
- http://buddhavehicle.com/userfiles/file/46820701217.pdfIn PDF document text
- https://mauspro.net/upload/files/55165166487.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/gejoxel.pdfIn PDF document text
- http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/dupuxikotobuxurimunen.pdfIn PDF document text
- https://chatsystem.site/js/ckfinder/userfiles/files/pupoxawimi.pdfIn PDF document text
- http://mwbright.com/upload_fck/file/2021-9-3/20210903083327472031.pdfIn PDF document text
- https://adikkedua.com/contents/files/29236950827.pdfIn PDF document text
- http://snabsz.ru/ckfinder/userfiles/files/80243471131.pdfIn PDF document text
- https://landtop.com/filespath/files/20210916080926.pdfIn PDF document text
- http://reelproductionshd.com/userfiles/file/fadumeligegukeb.pdfIn PDF document text
- http://zaiger.ru/img/file/jafugewagozidubabupubil.pdfIn PDF document text
- http://gewoongroen.eu/app/webroot/files/userfiles/files/xilawanijasoponeta.pdfIn PDF document text
- http://ccsl.asia/files/mirudeduxigatades.pdfIn PDF document text
- https://funke.be/data/file/numadafavaguxidekoxuj.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16148d810b6178---97725393295.pdfIn PDF document text
- http://globalbando.com/DATA/upload/files/202109070706152274.pdfIn PDF document text
- http://imi.vc/upload/files/13194515991.pdfIn PDF document text
- http://rw-hse-businessconsulting.de/userfiles/file/95522747952.pdfIn PDF document text
- http://noospc.ru/SITE/files/editor/file/dowogalozobasafudumigatek.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615ac59aa05a4---65768635651.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/16380071152.pdfIn PDF document text
- http://ibconsulting.it/userfiles/files/gamexesobitaravawelaze.pdfIn PDF document text
- https://austarpharma.com/upload/files/mifobuwebavorosu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=do+you+get+time+and+a+half+for+labor+dayPDF 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_off0000dfdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFDC | 17388 bytes |
SHA-256: 9cffa3e063ac39826f1cc6ea5924ba9b79cbb92168c4d113a0de11bc0bc44378 |
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font_01_sfnt_off00010d3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D3F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012556.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12556 | 10988 bytes |
SHA-256: ae55828bb132224f14329102e7eb0dea44fe60cb9bd1c8dbd31e3d2dcbbfbee2 |
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