MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by ML classifiers and ClamAV. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and embedded URLs indicate an attempt to redirect the user to malicious content, likely exploiting a vulnerability or serving as a lure for further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://queure.ru/uplcv?utm_term=vampire+diaries+parent+directory PDF link annotation
- http://tasteofruraleurope.eu/upload/File/xarazof.pdfIn PDF document text
- http://m2m2design.com/userfiles/jamizetibovunimegelij.pdfIn PDF document text
- http://jumpstart.mobi/userfiles/file/gefelo.pdfIn PDF document text
- http://cioccolatogallucci.it/userfiles/file/10409304609.pdfIn PDF document text
- http://somsit.com/ckfinder/userfiles/files/22659409554.pdfIn PDF document text
- http://investin-khj.ir/ckfinder/userfiles/files/sofizowumo.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/75ed6f9bf232060168c3d02f84bc69e5/nigamobexela.pdfIn PDF document text
- http://fanghsin.com/uploads/files/202109061150402429.pdfIn PDF document text
- https://segurodegranizo.ar/noticias/fckeditor/file/worugogomo.pdfIn PDF document text
- http://axi-hohenstein.de/userfiles/file/wiwizibamemotepuxoten.pdfIn PDF document text
- https://brakos.it/file/gubutasufavufikog.pdfIn PDF document text
- http://qdxqw.com/uploadfile/file/jowawebetote.pdfIn PDF document text
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16141d9bba23a6---mimefibutuzuzin.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/pchfcr9brr9sut5hadn1sfnlo4/16758713767.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/46216533234.pdfIn PDF document text
- http://erh-hu.com/userfiles/file/zitigokumi.pdfIn PDF document text
- http://ellenia3.eu/userfiles/files/zilukewosubezaxexa.pdfIn PDF document text
- http://jysfh.com/upload_fck/file/2021-9-6/20210906080131116697.pdfIn PDF document text
- http://sinocelltech.com/filespath/files/20210920160853.pdfIn PDF document text
- http://ranjitabiswas.com/userfiles/files/sukametexivomig.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/e30c75fcd72df4af4f4657fc9af0868c/piwutefo.pdfIn PDF document text
- http://tubelessons.net/cms_images/file/vajipovapavimasevexazato.pdfIn PDF document text
- http://www.pibmg.com.br/ckfinder/userfiles/files/files/17122156302.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_off00013f4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F4C | 18868 bytes |
SHA-256: 11075adeedff9d382c414cc3977b22c8002b7e662f2b430531966917f5654f65 |
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font_01_sfnt_off000170ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x170AD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000188c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x188C4 | 10712 bytes |
SHA-256: 99a8d6171777c0ba23041905840a89b5e53b5d9b08a6c21c269562c84535c76f |
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