MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to disposable hosting or compromised CMS upload storage, forming a link farm. The primary purpose appears to be directing users to potentially malicious content or downloads, as indicated by the 'utm_term' parameter in one of the URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://krisoc.ru/uplcv?utm_term=free+sex+game+apk+download PDF link annotation
- http://adas-muko.pl/photo/file/fedonolesesixudo.pdfIn PDF document text
- https://aydin-elektrik.com/resimler/files/puvideragutosazag.pdfIn PDF document text
- https://mancomunidadvaldizarbe.com/userfiles/files/nofexotiga.pdfIn PDF document text
- http://velapower.com/glwh/UploadFile/file/2021090811491273499.pdfIn PDF document text
- https://www.ftha.org/admin/ckfinder/userfiles/files/jewuditejitesodasiruw.pdfIn PDF document text
- https://faktxeber.com/resimler/files/xubebuto.pdfIn PDF document text
- https://tuinvandecruys.be/file/fobozutodesowirimuvog.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/jogum.pdfIn PDF document text
- http://palletgoanloi.com/img-dn/files/nuzorafowamixedit.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139107437bfe---fopiresowawejolisu.pdfIn PDF document text
- http://jarauwerdaenzn.nl/userfiles/file/9876575317.pdfIn PDF document text
- http://knauto.com/upload/file///borolikeporinutuge.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/d73b74de7deba2a3a391d4ae4cf826d9/rolumidorodut.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613b32073140b---86015790318.pdfIn PDF document text
- http://globomax.eu/userfiles/file/59693594589.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/35878553574.pdfIn PDF document text
- http://www.bordadoindustrial.com/ckfinder/userfiles/files/7310412012.pdfIn PDF document text
- http://sujitonweb.com/userfiles/files/65754239781.pdfIn PDF document text
- http://bagliodeimille.it/userfiles/files/wovafobos.pdfIn PDF document text
- https://medtek.vn/storage/file/34950539011.pdfIn PDF document text
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/161382616e83f0---95771812167.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_off0000ca2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA2E | 18232 bytes |
SHA-256: 64c20611b1895eeefa4bf1cc61b6613b1727fb0edbd4871aae6fc6436154c54c |
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font_01_sfnt_off0000f8a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000110bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110BC | 10800 bytes |
SHA-256: 0f618d69f2579bbf393b8ce1f2706dab18161f5534cc773f07fda4febdb75363 |
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