MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external URIs and link farms hosted on compromised or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is unreadable, but the heuristics point to a lure designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://infrive.ru/uplcv?utm_term=tab+s6+vs+ipad+air+2020 PDF link annotation
- http://trieuduong.com/images/Download/tupubisuriludo.pdfIn PDF document text
- https://eownauto.com/uploadpic/files/bejegolum.pdfIn PDF document text
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16142332a5aa9e---bewuninukoleralol.pdfIn PDF document text
- http://kelvista.lt/images/files/xuruvuxalav.pdfIn PDF document text
- https://francois-daulte.com/ckfinder/userfiles/files/tidogeberov.pdfIn PDF document text
- http://makinsushi.com/uploads/files/nofiwojorisosuvip.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/2e4c40df14f28ebe083a5024bc6a500b/18069469383.pdfIn PDF document text
- http://yhbinternational.com/userfiles/file/dusopuji.pdfIn PDF document text
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/4dd944c02197944588a9e11cb8f5b25b/54397480445.pdfIn PDF document text
- https://asztromiskolc.hu/ckfinder/userfiles/files/pisoxosoxip.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/1411033381.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/e1fa69e7affbdecce86f3d9590c49294/52447825143.pdfIn PDF document text
- http://yachtales.net/admin/userfiles/files/36784561041.pdfIn PDF document text
- http://stellarvvv.ru/ckfinder/userfiles/files/18558103743.pdfIn PDF document text
- https://free-spirit-city.eu/uploads/wysiwyg/files/60292331730.pdfIn PDF document text
- http://apart1day.ru/file/10551550556.pdfIn PDF document text
- https://weeb.nu/userfiles/file/57067416820.pdfIn PDF document text
- https://barrier.exma.cl/ckfinder/userfiles/files/zuxusoxunisuvup.pdfIn PDF document text
- https://noddy.nu/images/file/34080879510.pdfIn PDF document text
- http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/releliju.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/48910961602.pdfIn PDF document text
- http://salman-is.com/userfiles/file/79613765282.pdfIn PDF document text
- http://residenzaeden-albisola.com/userfiles/files/84996422919.pdfIn PDF document text
- https://dragonexpressml.com/userfiles/files/pavigagapumesi.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_off0000d4e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4E8 | 10464 bytes |
SHA-256: 9a013675b561e7cc074b5b647fa67394a8b4ba0f929c8f9cd1323f0704ccbca7 |
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font_01_sfnt_off0000eca1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B3 | 19780 bytes |
SHA-256: 599c83b8e229b20070b01b9545c3ee3eec58f9d6ca00635d5b7e061a0810d2b3 |
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