MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. Numerous embedded URLs were found, many pointing to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://oniceh.ru/uplcv?utm_term=apk+editor+p PDF link annotation
- https://sunkamalzemecilik.com/userfiles/file/84039402335.pdfIn PDF document text
- http://daltan.hu/userfiles/file/mofikimaze.pdfIn PDF document text
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/88462654960.pdfIn PDF document text
- http://gerastar.com/userfiles/file/gakekaripetovi.pdfIn PDF document text
- http://border-collie.ru/sites/default/files/file/topomexujopop.pdfIn PDF document text
- https://toananhmedical.com/uploads/files/viximegosekalalizofafutis.pdfIn PDF document text
- http://libron.pl/fckupload/assets/file/josopiluwelonufakexexax.pdfIn PDF document text
- http://jullien38.com/ressource/site-image/files/bisebuvobisodivelu.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/5c39d571466dc493b9e67aa8d6a516e4/97759955922.pdfIn PDF document text
- http://shmgec.com/Uploadfiles/files/vajubokaroxotewifero.pdfIn PDF document text
- http://musicfriend.vn/public/default/ckeditor/files/vulilaxotezipepuxoxu.pdfIn PDF document text
- https://big-affaires.com/img/pics/files/29141356905.pdfIn PDF document text
- http://www.cda.org.hk/ckfinder/userfiles/files/bufuwatuzawiwibufu.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/jr2uelgihm4ltqb0hprvj97eh0/80272646373.pdfIn PDF document text
- http://kovacsoltvaskerites.hu/images/file/80140011626.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/90613821472.pdfIn PDF document text
- https://biblioteka-koneck.pl/ckfinder/userfiles/files/34485169749.pdfIn PDF document text
- https://lotusmarinevn.com/upload/files/limipekekovapuk.pdfIn PDF document text
- https://yennenga.org/business_school/uploads/file/rolevepekav.pdfIn PDF document text
- http://szentistvanpatika.hu/upload/file/menonizoworakifukumu.pdfIn PDF document text
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/4cab344458005c9d4b44b85127e8a565/kifutamadagowi.pdfIn PDF document text
- http://ristoranteyuri2.com/userfiles/file/samojododunujeluka.pdfIn PDF document text
- http://dekoblickfang.de/userfiles/file/zumotobefi.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_off0000d5d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5D2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ede8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDE8 | 9976 bytes |
SHA-256: 77e24cf2c8c5909de23d934d029c3b42a1259b79227395a536eac6d204fb44aa |
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font_02_sfnt_off00010422.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10422 | 23424 bytes |
SHA-256: d8ae97c7fed138de2e066dc98024a1643a224a63a75817cf2a34ec37da91940f |
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