MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs that point to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary function appears to be facilitating access to external malicious sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://infrive.ru/uplcv?utm_term=after+trillion+what+is+next PDF link annotation
- http://clean-ecology.com/Upload/files/46990785433.pdfIn PDF document text
- http://oilmachineydy.com/d/files/37422158605.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/q4t936gk4b9crskbgcfgdr6uc0/gasobifezulomutup.pdfIn PDF document text
- http://mstreatmentadvances.com/userfiles/files/2958339841.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/79975029994.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd55f75210---133351674.pdfIn PDF document text
- http://www.moyekolodin.com/files/fogedamuzofowoderojag.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135589953520---61240950271.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/savobozipojiluseworut.pdfIn PDF document text
- http://simsvizag.com/admin/uploadedfiles/file///42130827895.pdfIn PDF document text
- https://vanphongphamhienluong.com/upload/files/juselefejutagoxegebalaz.pdfIn PDF document text
- http://smwiarus.pl/ckfinder/userfiles/files/sexodupofoveletewinikuzu.pdfIn PDF document text
- http://seoulgreeter.com/userData/board/file/vutenoluxejesijinunuruj.pdfIn PDF document text
- http://quangcaosmsgiare.com/media/ftp/file/52665322103.pdfIn PDF document text
- https://weilmclainboiler.ca/fck_upload/file/18874936423.pdfIn PDF document text
- http://woodlandhills.ilovepokebar.com/uploads/files/10746925366.pdfIn PDF document text
- https://fa-vietnam.com/webroot/img/files/majiwixex.pdfIn PDF document text
- http://newo.ru/files/files/lalinoleruvuwiseseja.pdfIn PDF document text
- http://motolargo.pl/userfiles/file/16819926991.pdfIn PDF document text
- http://sithome.com/upfiles/file/20210911145107.pdfIn PDF document text
- https://euroialinsol.ro/userfiles/file/garavek.pdfIn PDF document text
- https://escaletravel.com/userfiles/files/witomadunodere.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_off0000d56d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD56D | 10480 bytes |
SHA-256: ca00f48b5a2ed70273a1ac74d1caa15b5fc0e809cc9752c83c5189db788a3d40 |
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font_01_sfnt_off0000ed41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED41 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010553.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10553 | 18484 bytes |
SHA-256: 16fb135ccb280caaae0f6f1436ed57031acce6965cdd0fe06dce9c828783878e |
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