MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample 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 WordPress sites or disposable hosting, suggesting a link farm used for phishing or malware distribution. The presence of external URIs and the overall structure strongly suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://coretry.ru/uplcv?utm_term=angioplasty+for+pvd PDF link annotation
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/59472156160.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/a0213d861c1dcacd6aa69bf519c95053/fufulabifokimafoxudogevuk.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/rexikubemaz.pdfIn PDF document text
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160713211b04cf---70448997791.pdfIn PDF document text
- https://llsindia.in/FCKeditor/file/mobujapukigo.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/85b783a8f08f074073f2b0448cc9a97e/lexogogof.pdfIn PDF document text
- http://metabolit-plus.ru/files/file/puzuzimepiloxi.pdfIn PDF document text
- http://adbuilder.at/ckfinder/userfiles/files/bipiw.pdfIn PDF document text
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/wimupexidejodisuvodikenes.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c262768b3e1---46888186711.pdfIn PDF document text
- http://intelekt.biz/uploads/pages/files/77337836737.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/bffc61fbf9d64eccb0237613ce17362a/22674053929.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160897f457fdd1---40727390392.pdfIn PDF document text
- http://bigsvatcharasith.com/userfiles/file/pekijoposos.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160722cadc4718---99341016326.pdfIn PDF document text
- http://jfe.hk/userfiles/94058876390.pdfIn PDF document text
- http://aiaato.com/FileData/ckfinder/files/20210616_B18D3FD15677AA8C.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4fee5080f---dupevaja.pdfIn PDF document text
- http://hy-concrete.ru/d/files/lagizanekuparokudapu.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085fd4696351---nutikamekidugenolozaz.pdfIn PDF document text
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/45107a60346f74cca87603373041cfc6/kerajulik.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b96d2722a18---bekopi.pdfIn PDF document text
- http://amphorabeautyclub.com/campannas/file/daguxozokakipeludega.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_off0000e4a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4A2 | 10700 bytes |
SHA-256: bec4a5c208164e4cbd91a9e77c3c0095a673b9d2926c6074f462f997e819970d |
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font_01_sfnt_off0000fd23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD23 | 16616 bytes |
SHA-256: a614a074461290b30cebb3a85a8b00528851dad5c24178e5a15673b817d90a58 |
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font_02_sfnt_off00012819.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12819 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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