MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as malicious and by an ML classifier. It contains a high number of external links, many pointing to disposable domains, indicating a link farm or phishing attempt. One heuristic specifically identifies a PDF link to an algorithmically-generated URL, suggesting a mechanism for distributing malicious content or phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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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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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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://thuanxuongmonmb.com/admin/webroot/upload/image/files/60213677492.pdf In PDF document text
- http://gr-chem.com/upload/files/sebulibadas.pdfIn PDF document text
- https://bushregenerators.info/userfiles/files/72648827593.pdfIn PDF document text
- https://wittnebel.dk/file/kofis.pdfIn PDF document text
- http://optimumnieruchomosci.pl/uploads/userfiles/files/82627923276.pdfIn PDF document text
- https://valstybestarnyba.com/upckfinder/files/98614272665.pdfIn PDF document text
- http://shoreluxurylimos.com/userfiles/files/vatonipat.pdfIn PDF document text
- http://banglatalkies.com/dynamic-images/cms/file/tavamutosumonu.pdfIn PDF document text
- https://virtualpulse.eu/UserFiles/file/84787063161.pdfIn PDF document text
- http://pasaru.com/upload/files/55766755580.pdfIn PDF document text
- https://ngonluathan.vn/images/ckeditor/files/30351077561.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/lalorata.pdfIn PDF document text
- http://baocaosuhoatoc.com/luutru/files/wewarupajure.pdfIn PDF document text
- https://termokingbt.com/ckfinder/userfiles/files/noluxobudimu.pdfIn PDF document text
- https://ventadeterrenosagricolas.com/userfiles/file/56679748400.pdfIn PDF document text
- https://mimpiindahsatu.com/contents/files/rewedobatopizikaf.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/d1p121ead0asetuje9etfmo17i/14411889601.pdfIn PDF document text
- https://studiecarriere.it/uploads/file/61973323571.pdfIn PDF document text
- http://stlukesfp.org/ckfinder/userfiles/files/rimofo.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///47602141892.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eedfeb1510---57480961475.pdfIn PDF document text
- http://ambulatorioveterinariosantanna.eu/userfiles/files/pebivibovulatilunudo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=minecraft+refresh+chunksPDF 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_off0000bdfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDFC | 10452 bytes |
SHA-256: 2feb67ff17a4d1a716a3f8db2ddd8a6a30d08304f5dd39d29795a88030944492 |
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font_01_sfnt_off0000d5a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5A6 | 17472 bytes |
SHA-256: 209aa205564cc5afbca7014ce9a3ea98d8caa4fbf0d94f7ae80fbb1dac39c726 |
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font_02_sfnt_off000102b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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