MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, a common tactic for phishing and malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 5
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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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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://oniceh.ru/uplcv?utm_term=sms+backup+%26+restore+apk+download PDF link annotation
- https://bnbtravels.com/ckfinder/userfiles/files/41612901365.pdfIn PDF document text
- http://rlponder.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zelijobim.pdfIn PDF document text
- http://isleford.com/filespath/files/20210917211432.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/71391807014.pdfIn PDF document text
- https://factorysales.com/userfiles/files/5886367764.pdfIn PDF document text
- https://airin.lv/images/userfiles/file/lizase.pdfIn PDF document text
- http://cartonwrappingmachine.com/userfiles/file/48857619061.pdfIn PDF document text
- http://luligang.com/ckfinder/userfiles/files/8033474748.pdfIn PDF document text
- http://lsmtrontractor.com/upfiles/file/20210902214746.pdfIn PDF document text
- https://greenfuturevietnam.com/Upload/files/rebaxo.pdfIn PDF document text
- https://xo-sound.ru/userfiles/file/34688000913.pdfIn PDF document text
- http://foodzipo.com/uploads/userfiles/files/kapatovilitapo.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-1/20210901225117254808.pdfIn PDF document text
- http://currycornersugarland.com/admin/images/file/sonenamabunopokawetepukol.pdfIn PDF document text
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/ecd69dc4fd96dccc13481371d9eed1e6/sawamutoveragirowawova.pdfIn PDF document text
- http://shamayachts.com/upload/file/94909041010.pdfIn PDF document text
- http://gomientrung.vn/uploads/image/files/53486705362.pdfIn PDF document text
- http://abpaluso.com/upload/file/mozidorididisali.pdfIn PDF document text
- https://zweefvlieg.net/userfiles/file/gadilu.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/161c2aad1b370018b370db51d167503c/mubowitisenuzowogazukidok.pdfIn PDF document text
- https://enilubricant.hoakhanh.vn/uploads/image/files/73637458511.pdfIn PDF document text
- http://labonguyenhoang.com/img-chamthi/files/78919377619.pdfIn PDF document text
- http://trust-law-firm.com/userfiles/file/20210917155734_942916660.pdfIn PDF document text
- http://espokebar.com/uploads/files/buxexemijowosirujakevolaj.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_off0000dc7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f491.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF491 | 10248 bytes |
SHA-256: de2fa12bd4495e333fc8bffdabdce9fcfc64ff607ce81bf4a9fce5813e8be185 |
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font_02_sfnt_off00010b68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B68 | 17104 bytes |
SHA-256: f50c5471bfc1bea3a15346cf3bac74d2b4d97c10c3c4a440cf8563a086f7e611 |
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