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 a high number of embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports the malicious intent of directing users to potentially harmful sites. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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=judikay+idinma+lyrics PDF link annotation
- http://lookkorea.net/userfiles/file/41124481331.pdfIn PDF document text
- http://kasargod.net/uploads/file/kenunete.pdfIn PDF document text
- https://fibra-optica.ro/ckfinder/userfiles/files/45714351114.pdfIn PDF document text
- https://kop-trans.pl/uploads/userfiles/files/43339776815.pdfIn PDF document text
- https://www.area-tlc.com/public/ckfinder/userfiles/files/58273509647.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/70sbe3anmuioc7ui518cojn3ec/35537249680.pdfIn PDF document text
- http://ankaser.com/userfiles/file/60795547642.pdfIn PDF document text
- http://imbirimbir.ru/files/31128566244.pdfIn PDF document text
- https://albawadiroad.com/userfiles/files/8969938491.pdfIn PDF document text
- http://jikaramen.com/uploads/files/94023678047.pdfIn PDF document text
- http://www.hausbaumesse.at/ckfinder/userfiles/files/dexerusuxaguvaneni.pdfIn PDF document text
- https://lotte-ppta.com/beta/assets/file/10597533700.pdfIn PDF document text
- https://ceramicasvillaflor.cl/UserFiles/File/12138853649.pdfIn PDF document text
- http://bzws.zhanyougame.com/ckfinder/userfiles/files/xigobirox.pdfIn PDF document text
- http://lightningriskassessment.com/ci/userfiles/files/89613715718.pdfIn PDF document text
- http://bkm-market.net/userfiles/file/jovoj.pdfIn PDF document text
- http://mvdeastudio.it/userfiles/files/nitenulam.pdfIn PDF document text
- http://indianmailbox.com/assets/images/userfiles/files/61520030831.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16134e0a77eb29---suwedim.pdfIn PDF document text
- https://odlingfamily.com/userfiles/file/542628728.pdfIn PDF document text
- http://podiummoda.ru/userfiles/file/lepusawoxawaliboluvapama.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133baacafe45---xededosukigegon.pdfIn PDF document text
- http://bio86.fr/userfiles/fichiers/24828963164.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_off0000d024.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD024 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e83b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE83B | 10476 bytes |
SHA-256: 0453173f79908d25e2e88c3ff5851319df89040ebf18cdd6926ddf9e96744f3b |
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font_02_sfnt_off0000fff3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFF3 | 17796 bytes |
SHA-256: f6611690bc99e0d3276de1d5bcf7dfbf39716c2e8ee39e988fc6d08452f14e7c |
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