MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and links to compromised CMS uploads, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure points to a malicious document designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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=bleak+house+streaming PDF link annotation
- http://jeanchapleau.com/userfiles/file/17762401773.pdfIn PDF document text
- http://ecosdaliberdade.com/ckfinder/userfiles/files/bekoritenikojudave.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/8c7cg6bh4bvcf1vn6qbk7tmuej/99567635417.pdfIn PDF document text
- http://studiotecnicolari.it/userfiles/files/sawepinibe.pdfIn PDF document text
- https://osakadentalcare.com/contents/files/84481101445.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6aa8e02e0---35300917179.pdfIn PDF document text
- http://hwayoung.kr/upfile/files/bemefavowuwarigugamego.pdfIn PDF document text
- http://tao-ssct.org/data/upload/file/90675558234.pdfIn PDF document text
- https://incoyun.com/calisma2/files/uploads/fowudofegikitamudufi.pdfIn PDF document text
- https://groupunsur2.com/contents/files/nibilidadesulurafev.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/0c2af3fcf11fdf441b2ebfd5903ecc20/toxidekelelazuwatuk.pdfIn PDF document text
- https://chambredhotes-savoie.com/ckfinder/userfiles/files/42213872697.pdfIn PDF document text
- https://ochronaskory.pl/pliki_user/File/95426705903.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613522ad4b272---befodutapoliwozame.pdfIn PDF document text
- http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/34343361635.pdfIn PDF document text
- http://zzweien.com/d/files/26874773198.pdfIn PDF document text
- http://519pf.com/userfiles/files/83617964712.pdfIn PDF document text
- https://jnvhardoi.org/ckfinder/userfiles/files/kokukunalakafukafusi.pdfIn PDF document text
- http://ngocminhcnc.com/demo_thietbimay_24_7/upload/files/zexajejadajopuvujuzoxi.pdfIn PDF document text
- https://wfbulgaria.com/uploads/wysiwyg/files/5710538705.pdfIn PDF document text
- http://luijkzonwering.nl/image/file/dipinominukesomi.pdfIn PDF document text
- http://pro-roubenky.cz/UserFiles/File/91200551552.pdfIn PDF document text
- https://www.aaptuk.org/ckfinder/userfiles/files/88960874607.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_off0000bbf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBF5 | 19384 bytes |
SHA-256: 94a82489c66608d62ff2ce65407a54f0dccf0716e9e8a5b0b4ee03393d84286d |
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font_01_sfnt_off0000ee8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE8C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A3 | 10800 bytes |
SHA-256: 73f4bfcc11824b577e9715d8162cd5bf4f820417702332a49c7887e4fcffc2de |
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