MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to numerous distinct domains, many of which are associated with potentially malicious content. The presence of embedded URLs and the nature of the heuristics suggest an attempt to redirect users to phishing sites or download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://granitnet.hu/editor_up/turifojivukilil.pdf In PDF document text
- http://urparitet.ru/admin/ckfinder/userfiles/files/wulutibujuse.pdfIn PDF document text
- https://studiovizia.com/webroot/img/content/files/77923020369.pdfIn PDF document text
- http://charmingcurls.se/upload/file/sejazixogarajevopezujat.pdfIn PDF document text
- https://vietnaminsight.biz/ckfinder/userfiles/files/pimuvesumodiwaxudisomik.pdfIn PDF document text
- https://southafricapools.com/contents/files/28551159045.pdfIn macro / runtime command snippet
- https://5a.ro/ckfinder/userfiles/files/24702833645.pdfIn PDF document text
- http://nprofit.hk/userfiles/57877261684.pdfIn PDF document text
- http://mispuntossaga.com/campannas/file/78139655715.pdfIn PDF document text
- http://classicalgardenstatues.com/uplds/file/2083039479.pdfIn PDF document text
- http://dienlanhtruongson.com/upload/files/puvijavufuzetojafixaj.pdfIn PDF document text
- https://cowik.pl/upload/36486068983.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/lenuzitixo.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16135b052f2b7b---66826715455.pdfIn PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/5c5dd5dc43af09238f23d1d106986492/disiv.pdfIn PDF document text
- http://tischlerei-schlusche.de/sites/default/files/file/jubafilaranazoxupes.pdfIn PDF document text
- http://megalaserasia.com/upload///xivujemerototozozibi.pdfIn PDF document text
- http://sinoscaform.com/upload/ckimg/files/202109062224015421.pdfIn PDF document text
- https://specialgarden.ro/userfiles/file/nuparukit.pdfIn PDF document text
- http://gardensyellowcab.com/admin/images/file/gogokuzugilovalutojox.pdfIn PDF document text
- https://anaksemut.com/contents/files/welowodukuleve.pdfIn PDF document text
- https://triosms.com/userfiles/file/lerur.pdfIn PDF document text
- https://bya-ingenieria.com/ckfinder/userfiles/files/37346461746.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=paired+devices+bluetooth+androidPDF 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_off0000da12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA12 | 18232 bytes |
SHA-256: ac9b8af5465f9266c3a44597dd6da7f443303c1a2085a51163920d3c48dde6fb |
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font_01_sfnt_off0001094a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1094A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012161.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12161 | 10776 bytes |
SHA-256: 40bdcf71b6c1c0b705ce5e397630a2a3d8eb7c07d32c6a2b248a6945afa0a9a3 |
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