MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the PDF structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://laborke.ru/uplcv?utm_term=dsm+5+pdf+bipolar PDF link annotation
- http://lnv-cnc.gr/userfiles/file/wozepuwavanawipopuju.pdfIn PDF document text
- http://rigdrilling.org/userfiles/file/lefizav.pdfIn PDF document text
- http://kowel.com/ckfinder/userfiles/files/1631963573.pdfIn PDF document text
- https://jerseyshorepirates.com/userfiles/files/17196656809.pdfIn PDF document text
- http://touristclub.in/userfiles/file/51230540958.pdfIn PDF document text
- http://farmaciafici.com/userfiles/files/josoxikujaz.pdfIn PDF document text
- http://www.ekoforte.com/upload/file/66348864381.pdfIn PDF document text
- http://bagodilovaspark.hu/userfiles/file/suxibu.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/3ba667068b884cf5742168d6b89935ef/33749761309.pdfIn PDF document text
- http://camara.acessoainformacao.org/uploads/ckfinder/files/wafakurugixefefunugol.pdfIn PDF document text
- http://kubak-ubezpieczenia.pl/userfiles/file/80799867741.pdfIn PDF document text
- https://photopoligrafic.ru/ckfinder/userfiles/files/40778522811.pdfIn PDF document text
- https://cukimentescukraszda.hu/files/files/27609808145.pdfIn PDF document text
- https://andhimazhai.com/images/files/gagupen.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a8c309336---gifewit.pdfIn PDF document text
- http://steffis-strassladen.de/userfiles/file/79423419235.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d997v7ubfqskf4elfd3a7a0eo6/jadavikewujeturi.pdfIn PDF document text
- http://golfvillageonline.com/userfiles/file/22203043734.pdfIn PDF document text
- http://swapnakoodu.com/fck_uploads/file/nejije.pdfIn PDF document text
- http://khacvietlaser.vn/public/images_news/files/81553638388.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f9c682af27---81177098165.pdfIn PDF document text
- http://kqcme.yiaiwang.com.cn/upload/files/sitomubizunededajo.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_off0000c03e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC03E | 10600 bytes |
SHA-256: 68463c4084d979ed9a8e29a09d90bc1364682342e0fbf719a598f0fa0c458b12 |
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font_01_sfnt_off0000d826.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD826 | 16704 bytes |
SHA-256: 753649b8fd16daa9db828498f4b349d3afd9996b8ea8deb819d3fd3eeaa04a48 |
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font_02_sfnt_off000102ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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