MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://oniceh.ru/uplcv?utm_term=thin+blue+line+emoji+copy+and+paste PDF link annotation
- https://perfecthospitals.com/FCKeditor/file/putazoketajof.pdfIn PDF document text
- https://windfreeklima.com/upload/ckfinder/files/rolusi.pdfIn PDF document text
- http://linza-market.ru/upload/files/gakawezosokekizusudenif.pdfIn PDF document text
- https://vieclamday.com/userfiles/file/17564869472.pdfIn PDF document text
- http://abwmountvernon.com/uploads/files/84630471549.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/b4912f341a230de76a7a2e4588c2330d/nebiruzekulivefefuwadopag.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616500e744cdd---xikejiz.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/27259194248.pdfIn PDF document text
- https://mdteam.se/ckfinder/userfiles/files/xagugamenuzewolufu.pdfIn PDF document text
- http://hpcad.pl/Upload/file/294585685.pdfIn PDF document text
- http://sake2metustin.com/uploads/files/tutalosujowiresuzosase.pdfIn PDF document text
- http://pcccmiennam.com/media/ftp/file/xawimimizewadodamotas.pdfIn PDF document text
- https://martas.vodrsport.cz/uploads/files/20977223650.pdfIn PDF document text
- https://aiwatopup.com/ckfinder/userfiles/files/9730772997.pdfIn PDF document text
- http://testplanet.nl/uploads/files/vijubipuzazaxamesenifike.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132c72f2b8d9---33172289117.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/2bdd1d4c30e5f36b098a6a8f462b007e/buwutariposanitewubebabiz.pdfIn PDF document text
- http://myrbacken.se/login/ckfinder/userfiles/files/boregiforilen.pdfIn PDF document text
- http://pescepiana.eu/userfiles/files/furemokanomajomubipudurav.pdfIn PDF document text
- https://sicurezzaips.it/uploads/file/60774676027.pdfIn PDF document text
- http://twgo8.com/uploads/base/files/202109200145314805.pdfIn PDF document text
- https://ashasuchikala.com/ckfinder/userfiles/files/52978002948.pdfIn PDF document text
- http://adas-muko.pl/photo/file/1504043665.pdfIn PDF document text
- http://lpxs168.com/filespath/files/20210903144751.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c7ae851a21---3344624554.pdfIn PDF document text
- https://vegas-shop.net/uploads/files/53974835506.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_off0000c9e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9E5 | 11128 bytes |
SHA-256: 4008648c6a645c9d108bb99a77127ed25b3efe5c837446f7dc9cdee806d48707 |
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font_01_sfnt_off0000e36a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE36A | 21128 bytes |
SHA-256: 91cba441de8f25dd095497b1b557f7e02fbf6929c1318fd160d6438a9fd8844f |
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font_02_sfnt_off00011a17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A17 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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