MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external PDFs hosted on various domains, many of which appear to be disposable or low-reputation. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm on such hosting. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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://goodmix-psc.com/userfiles/files/48541000686.pdf In PDF document text
- http://app0.linkeo.it/ckfinder/userfiles/files/61275053984.pdfIn PDF document text
- https://nevjegyzek.eu/uploads/file/pejove.pdfIn PDF document text
- http://talleresjpg.es/img/file/95441630471.pdfIn PDF document text
- http://qdsenfeng.com/data/files/pupebusurekexid.pdfIn PDF document text
- https://a-pointpro.com/cms/ckfinder/userfiles/files/nitejenulim.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/nubomipasokomilov.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/3a017b422871a3a93f59c132fa1703a3/50361768901.pdfIn PDF document text
- https://confetti-seasons.ru/upload/files/40905498734.pdfIn PDF document text
- https://drinkpoint.com/uploads/files/38733896234.pdfIn PDF document text
- http://quatangsongvan.com/hinhanh_fckeditor/file/84390245270.pdfIn PDF document text
- http://cellesekorea.com/ckupload/files/ganukuf.pdfIn PDF document text
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/91467413716.pdfIn PDF document text
- http://etyekilovarda.hu/userfiles/file/27326773143.pdfIn PDF document text
- http://daeryuhealthcare.com/ckupload/files/buxovolus.pdfIn PDF document text
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/wurotilepe.pdfIn PDF document text
- http://cs-web-design.de/ablage/userfiles/files/19170545059.pdfIn PDF document text
- https://okazdedziecko.pl/_files/Media/file/73469735720.pdfIn PDF document text
- http://szjwwj.com/userfiles/file///76058297072.pdfIn PDF document text
- http://okeefesreef.com/ckfinder/userfiles/files/51049145748.pdfIn PDF document text
- http://tai-yang.tw/taiyang/upload/file/fusenibe.pdfIn PDF document text
- http://stefani.cz/fck/file/77048203865.pdfIn PDF document text
- https://ud-hobby.com/images/Upload/file/bivuwisigidepo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=promo+codes+for+robux+heroPDF 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_off0000decf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECF | 10580 bytes |
SHA-256: 081251288dbff81b1ee44a0e5d17a3142be2d735f9ffab35d95ca6c46cb1b4b8 |
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font_01_sfnt_off0000f6fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6FE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F10 | 18488 bytes |
SHA-256: afe46c7a43b9af45db35f8c7d1a24f3fc4fb8756e0f67dc315abe6201056a99a |
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