MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 https://nomylo.ru/uplcv?utm_term=resident+evil+3+nemesis+ps1+download PDF link annotation
- http://tongchangkj.com/uploadfile/file///2021090506031218.pdfIn PDF document text
- http://wellogo.in/userfiles/file///87959676550.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/vmbuuqg9mtpduhvmopalscccck/69404251908.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/796f6e931408565b94ed2360f3b8226d/vafelojutavumoma.pdfIn PDF document text
- https://happycolaborativo.com/uploads/files/4310794511.pdfIn PDF document text
- http://1544-7419.net/upload/fckeditor/file/lurujibowowaz.pdfIn PDF document text
- http://gibisch.biz/files/files/janemafemevopobipu.pdfIn PDF document text
- http://clinicaveterinariacittadivignola.com/userfiles/files/26427859984.pdfIn PDF document text
- http://phuketdriveschool.com/userfiles/file/mikokexajimivavafoba.pdfIn PDF document text
- http://motoren-adachi.com/js/upload/files/68760989691.pdfIn PDF document text
- http://studiotecnicomartani.eu/userfiles/files/zanixojojenininuwosolo.pdfIn PDF document text
- http://aven.su/userfiles/file/22964708809.pdfIn PDF document text
- http://geopraxis.it/userfiles/files/54691010176.pdfIn PDF document text
- https://ximatinhdongnai.com/app/webroot/files/images/pages/files/68559131293.pdfIn PDF document text
- http://indyskischool.com/ckfinder/userfiles/files/2789648502.pdfIn PDF document text
- http://influences-vegetales.eu/assets/Image/files/muzejanavupuregikus.pdfIn PDF document text
- https://stpatswatertown.org/ckfinder/userfiles/files/bejulurire.pdfIn PDF document text
- http://mawaevents.com/uploads/file/18779724724.pdfIn PDF document text
- http://e-junghan.com/userData/board/file/lipotobemu.pdfIn PDF document text
- http://robertoantoniz.com/resources/original/file/92081342324.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/zalezenavuwuvegomarig.pdfIn PDF document text
- http://retailcop.ca/files/13235003293.pdfIn PDF document text
- http://andlupa.com/userfiles/file/16056287475.pdfIn PDF document text
- https://harom.ro/files/file/ralilizutonir.pdfIn PDF document text
- http://suamayin.biz/userfiles/file/dumatiminizogozotetosod.pdfIn PDF document text
- 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_off0000bb13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB13 | 16408 bytes |
SHA-256: 4350d516f99e5121af3830df5f6c060a708c54d1d31d630ee65f29435638590a |
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font_01_sfnt_off0000e4df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4DF | 10876 bytes |
SHA-256: baf9c59e60169493f96084ca65ae510ce14ea68df2bb9cdd9fef89deb6bce1f2 |
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font_02_sfnt_off0000fe1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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