MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these URLs and the overall structure indicate an attempt to distribute malware or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://synerhu.ru/uplcv?utm_term=dream+league+soccer+2020+coins PDF link annotation
- http://nationalherbo.com/userfiles/file/nosewuzuzuvuvekuzawan.pdfIn PDF document text
- http://prochem.vn/images/uploads/files/mewofutewafumese.pdfIn PDF document text
- http://backkwang.com/userData/board/file/99475265315.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/5a55c81000376ea51f6dbacb33770275/5158395590.pdfIn PDF document text
- http://kukubara.com/zdjecia/file/41804658709.pdfIn PDF document text
- https://korovin.org/site/img_ufiles/19983168992.pdfIn PDF document text
- https://on-call-anatomist.org/ckfinder/userfiles/files/gumemuluroserizovuwofad.pdfIn PDF document text
- http://bilafafafa.com/shopadmin/upload/files/74811184187.pdfIn PDF document text
- https://sukaunited4d.vip/contents/files/16972754614.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614c444155200---86665158909.pdfIn PDF document text
- https://giasidaily.com/uploads/userfiles/file/80534354429.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/pom7bduogp73io67d5rmag5i5n/91267566215.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ksaaigapiujshceb8mupc4uedo/nawifosezonaxixubimo.pdfIn PDF document text
- http://kubak-ubezpieczenia.pl/userfiles/file/jiwoxiluvulagafakiki.pdfIn PDF document text
- http://grafitym.kz/files/file/bitemiferibasedu.pdfIn PDF document text
- https://gmnavarra.es/ckeditor/files/27804011749.pdfIn PDF document text
- http://hondatayho.top/img-ngocbao/files/32364903851.pdfIn PDF document text
- http://sampoernastrategic.com/uploads/image/files/renogatikugale.pdfIn PDF document text
- http://discus-rus.ru/upl/file/tagurujevimuvila.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b01d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB01D | 19584 bytes |
SHA-256: 0bbd8b208c466ac0137ea42d3033d81e631ae1f625168dacb452b007e8fed976 |
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font_01_sfnt_off0000e1f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1F2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fa03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA03 | 16188 bytes |
SHA-256: 800554d3d6320da9c8ab21a3ad3d270f40e7a92360d7538c059d647d952d1d34 |
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font_03_sfnt_off00010fba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FBA | 10816 bytes |
SHA-256: e0173184d6919da9994df71cf655c8d849829d85b841bfc1d52e3d0558aebf48 |
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