MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a phishing or scam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs, such as 'https://inwebjor.ru/uplcv?utm_term=chromium+os+download+iso', are likely used to redirect users to malicious or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://inwebjor.ru/uplcv?utm_term=chromium+os+download+iso PDF link annotation
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131832638c73---bugedasafiwovorotepanop.pdfIn PDF document text
- https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/12043637635.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161425135ce561---ridakukudoxisegeruz.pdfIn PDF document text
- https://deitratech.com/userfiles/file/denebemovi.pdfIn PDF document text
- https://fallsplat.se/bildbank/file/12226856865.pdfIn PDF document text
- https://lrsinc.co/userfiles/file/vadejasumu.pdfIn PDF document text
- http://street.bpv.su/content/files/files/36928171611.pdfIn PDF document text
- http://zakuskymoser.cz/www/ckfinder/userfiles/files/30828248834.pdfIn PDF document text
- https://doanandieuduong295doson.vn/namthuan/images/news/files/resogapakewaxexizizepixa.pdfIn PDF document text
- https://cordovajewelry.com/images/file/83538357979.pdfIn PDF document text
- https://habibitours.org/ckfinder/userfiles/files/51841191111.pdfIn PDF document text
- http://uniquehotelsolutions.com/files/others/fufokonudivefadajebot.pdfIn PDF document text
- https://aprilboya.com/userfiles/file/wosiru.pdfIn PDF document text
- https://wmu24.ru/media/file/sevudim.pdfIn PDF document text
- https://elearnhouse.com/userfiles/file/fiwozito.pdfIn PDF document text
- http://vet-arrighicolangelicristilli.eu/userfiles/files/bafobefipivu.pdfIn PDF document text
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/0913d431079a4c4bcb4fea89d5836de3/32889002597.pdfIn PDF document text
- http://luxlustry.ru/img/upload/dokezi.pdfIn PDF document text
- http://scea.edu.mn/ckfinder/userfiles/files/nijuwafasubepazogavolo.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/diwosoravopi.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/28443105549.pdfIn PDF document text
- http://alfonsoguiggiarchitetto.it/userfiles/files/sugom.pdfIn PDF document text
- https://nk-sostanj.si/files/file/daveduve.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_off0000b064.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB064 | 15096 bytes |
SHA-256: 0d2cf4dedbaac8714bed37f67b6c86c5a7c06acffe0d1da7429ff9465ab582a0 |
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font_01_sfnt_off0000d6de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6DE | 10500 bytes |
SHA-256: 9ee6fc64c27587b8355f178c523d82cd2d2718112ecaf0daf779854953a99c8e |
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font_02_sfnt_off0000ee8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE8F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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