MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to compromised websites, indicating a link farm designed to redirect users to potentially malicious content. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
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://cructi.ru/uplcv?utm_term=download+aplikasi+android+system+webview PDF link annotation
- https://patoman.ro/ckfinder/userfiles/files/30881828203.pdfIn PDF document text
- http://studiodugnani.it/userfiles/files/16072392572.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/1899sish8g2080jh6j80n79ekb/gejez.pdfIn PDF document text
- https://orangcar.com/app/webroot/upload/files/wisakuvusez.pdfIn PDF document text
- https://neksav.com/upload/ckfinder/files/30547730879.pdfIn PDF document text
- http://aitrans.cn/UploadFile/file/F1202109092047539927.pdfIn PDF document text
- https://palet-school.com/files/files/romazevetofu.pdfIn PDF document text
- http://www.colormotion.cz/UserFiles/file/sememanu.pdfIn PDF document text
- http://architettosirocco.it/userfiles/files/sadusarezilidival.pdfIn PDF document text
- https://tuoitre.bacgiang.gov.vn/lib/ckfinder/files/pafisitofolitut.pdfIn PDF document text
- http://tourbusan.net/FileData/ckfinder/files/20210911_EC4D37009B76FCAE.pdfIn PDF document text
- https://secolink.sk/userfiles/file/52248562923.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1614bb5aeab77d---54695478433.pdfIn PDF document text
- http://take114.kr/FileData/ckfinder/files/20210925_1D72FEB0298B1A54.pdfIn PDF document text
- http://evo-models.com/uploads/userfiles/files/48536005779.pdfIn PDF document text
- http://jinwoosmc.com/userfiles/file/43256194430.pdfIn PDF document text
- https://inprovitargentina.com/ckfinder/userfiles/files/pajidiwaval.pdfIn PDF document text
- https://asi-filter.pl/files/file/weremezovol.pdfIn PDF document text
- https://pingthye.com/userfiles/files/75575803983.pdfIn PDF document text
- http://bulgankhangai.mn/userfiles/files/mipatolufositezomufepoxi.pdfIn PDF document text
- http://studiotecnicomartani.eu/userfiles/files/sosazinujugunot.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/a99eef8d35fd5db7d8764fabe145a939/rixajuriza.pdfIn PDF document text
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/69331258095.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_off0000b19e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB19E | 17972 bytes |
SHA-256: 6c401b25bc70bfbcb3e2e5b927106ffb8c6f192ddf6b1d1276604f6289315897 |
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font_01_sfnt_off0000dfcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFCC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f7e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7E3 | 11052 bytes |
SHA-256: c722329a6a937fdef1ea78c3f3653b60f0cd0526ff1cc76bd7a828e35bd57db7 |
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