MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a high number of external URIs, many of which point to PDF files hosted on various domains. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates these links are likely part of a link farm designed to distribute malware. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://isystemlab.com/admin/ckfinder/userfiles/files/92841909226.pdf In PDF document text
- http://allier.proximeo.com/ckfinder/userfiles/files/80150657378.pdfIn PDF document text
- http://stadion-zarya.ru/ckfinder/userfiles/files/kolagotonuxofudopigoziwig.pdfIn PDF document text
- http://zima.italie-ubytovani.cz/data/file/namobopefijirasug.pdfIn PDF document text
- http://xn--12cfu9bc1efac9a9azfdsb7b9d1f0j.net/ckfinder/userfiles/files/sutef.pdfIn PDF document text
- https://kingyao.com/uploadfiles/files/20210904_213250_9701.pdfIn PDF document text
- http://www.sosonomo.com/ckfinder/userfiles/files/29415540056.pdfIn PDF document text
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/noroxam.pdfIn PDF document text
- https://rimsball.com/ckfinder/userfiles/files/9774827113.pdfIn PDF document text
- http://mdknoodles.co/uploads/files/66653045980.pdfIn PDF document text
- http://thamcohoaian.com/webroot/img/files/61905782126.pdfIn PDF document text
- https://autotronics.vn/userfiles/file/41050757394.pdfIn PDF document text
- https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/36008041687.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/34899171576.pdfIn PDF document text
- http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/52448128341.pdfIn PDF document text
- http://chia4kids.ru/ckfinder/userfiles/files/6366440550.pdfIn PDF document text
- https://shindah.com/images/ckeditor_img/files/xosisi.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/29548011765.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/wawuf.pdfIn PDF document text
- https://www.alitec.es/js/ckfinder/userfiles/files/90454871402.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/ff40147f9518fd98da0fff6059f9f643/gazojevewo.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/5ug2ftu1p64sngu6jp5g767aus/buguweruvax.pdfIn PDF document text
- https://waelfawzy.com/userfiles/file/In PDF document text
- https://idealist.ro/userfiles/file/36399889917.pdfIn PDF document text
- http://fongyoskert.hu/userfiles/files/66809097286.pdfIn PDF document text
- http://architettorobertafasola.eu/userfiles/files/16864712720.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=hacked+pokemon+go+android+downloadPDF 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_off0000cfb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFB4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e7cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7CB | 10760 bytes |
SHA-256: a2ef0815c5961d275c239c4849c998d4b4c4272213e305bd96639565379990d9 |
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font_02_sfnt_off00010043.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10043 | 18016 bytes |
SHA-256: 5ba6caaec6621967f1de812254dc67565aa1af7f2d206feaa706193881dbf08f |
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