MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, and contains numerous external links. Several heuristics indicate it is a link farm hosted on potentially compromised or disposable domains, designed to redirect users. The presence of external URIs and the nature of the heuristics suggest a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://nomylo.ru/uplcv?utm_term=hairstyle+for+men+long+hair PDF link annotation
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/87345862387.pdfIn PDF document text
- http://krzysztofmalec.pl/gfx/fck/file/damefatadamepilebopezibod.pdfIn PDF document text
- https://suadienlanhhanoi.net/upload/files/pusuxeputemewubirofop.pdfIn PDF document text
- https://gea99.com/ckfinder/userfiles/files/tijatubivise.pdfIn PDF document text
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/00ja78lvsd1i2acgomspkqn33j/51680286986.pdfIn PDF document text
- https://xaydungkienthiet.com/upload/files/24403877707.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/18820319864.pdfIn PDF document text
- http://rioairporttransfer.com/ckfinder/userfiles/files/32022386969.pdfIn PDF document text
- http://designbyjoseph.com/uploads/File/taxujufufenow.pdfIn PDF document text
- https://cukimentescukraszda.hu/files/files/nisukowulativi.pdfIn PDF document text
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16156e50f84bb4---vowemirirem.pdfIn PDF document text
- http://stomerijindex.nl/images/uploads/bemibitomefijitudidogulew.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4d89df81a---76268886355.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/ed320640b957cd80ab51ae23dc6e79b7/67626424875.pdfIn PDF document text
- http://cgmorenanews.com.br/ckfinder/userfiles/files/48805225851.pdfIn PDF document text
- http://bbhshipyard.com/userfiles/file/baboweradopogujewu.pdfIn PDF document text
- https://hotelexpert.ro/uploads/files/86884001738.pdfIn PDF document text
- http://holidayinntorino.com/userfiles/files/wetefodux.pdfIn PDF document text
- https://10s317.com/uploads/files/202109192326267274.pdfIn PDF document text
- https://psfund.org/public/uploads/files/cms_files/47963674120.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/lexakin.pdfIn PDF document text
- https://proxkimya.com/resimler/files/6472034387.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/23508222191.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16145d710a35b9---vaseg.pdfIn PDF document text
- http://a-daily.jp/app/webroot/contents_img/files/61053325731.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_off0000b56a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB56A | 10764 bytes |
SHA-256: 55f6d206bb35aef29ad2a31d7adbf8cca1b9d41e07905ba21ba708246a1891f5 |
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font_01_sfnt_off0000cdfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDFC | 17176 bytes |
SHA-256: 0d831f3c3fc50126a9d5f78fd169b63bed00099c6e7f7e75898661a29459e446 |
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font_02_sfnt_off0000f962.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF962 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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