MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1036 Masquerading
The sample is a PDF containing embedded JavaScript and numerous external links, many pointing to disposable domains. The heuristic 'PDF_RANDOM_URL_LINK' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate a phishing or malware distribution attempt. The embedded JavaScript is likely used to further obfuscate the malicious intent or to directly initiate a download, contributing to the overall attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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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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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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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://expertcomptablecourreges.fr/michel_courreges/userfiles/file/8293598461.pdf In PDF document text
- http://muntepa.com/userfiles/files/32792499309.pdfIn PDF document text
- http://mimarkamilozkartal.com/userfiles/files/vikosoxek.pdfIn PDF document text
- http://veterinarioassociatopacinidallatorre.eu/userfiles/files/59472200734.pdfIn PDF document text
- https://milsagliksen.org/upload/ckfinder/files/puduj.pdfIn PDF document text
- https://nomortiga.com/contents//files/85811068982.pdfIn PDF document text
- http://language-coach.pl/uploads/files/wimid.pdfIn PDF document text
- http://annamsaigonlaw.com/upload/files/75461633076.pdfIn PDF document text
- http://langmoon.jp/js/upload/files/ponawejozenuwadizezawotot.pdfIn PDF document text
- http://vendingchat.ru/uploads/ckfinder/files/84945802738.pdfIn PDF document text
- http://fence-alarm.com/userfiles/files/64357493813.pdfIn PDF document text
- https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/49425561480.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc1c0ac5ca---nenibewinimajalosuvonepap.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-5-31/20210531210129500531.pdfIn PDF document text
- http://delfosventures.com/userfiles/files/33976808006.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/63602312526.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/fb3e269315358bb847853f63f2fa8a94/disolesojogewebo.pdfIn PDF document text
- https://monyetjoget.com/contents//files/58909615587.pdfIn PDF document text
- http://daphongthuyhueminh.com/uploads/image/files/12326422952.pdfIn PDF document text
- http://tl-maskinfabrik.dk/userfiles/file/rezavejesa.pdfIn PDF document text
- http://www.golfusa.be/userfiles/files/futadenedegipotawipi.pdfIn PDF document text
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/48215716922.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=fur+elise+piano+sheet+music+with+letters+pdfPDF 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_off0000bab3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAB3 | 11048 bytes |
SHA-256: 2581c11cf9bda0f38e144999de66fd47e63d5760370c18e6e6402ca15e7d4ff5 |
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font_01_sfnt_off0000d43e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD43E | 17136 bytes |
SHA-256: 6c97d304d1e774dc0d500e0b6f4ca76db501d8fae619fe81f03f7f3fe4af9ae9 |
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font_02_sfnt_off00010021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10021 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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