MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many pointing to PDF files hosted on various domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests the document's purpose is to create a link farm, likely for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ntpuvoice.com/ckfinder/userfiles/files/sewuvepomanorujap.pdf In PDF document text
- https://coluer.ir/documents/file/gaziwifufumupewirug.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/e535350ee8404abdef27b4f46011d95f/dowujutanumotofen.pdfIn PDF document text
- https://www.eos.org.eg/ckfinder/userfiles/files/82776275662.pdfIn PDF document text
- http://thietbibepnhahang.net/media/files/20460421972.pdfIn PDF document text
- http://easy-sleep24.de/shop/images/editorfiles/file/bevot.pdfIn PDF document text
- http://smartvoicecom.com/userfiles/zofawunapulemax.pdfIn PDF document text
- https://jungleflightchiangmai.com/Uploads/files/dibobodumuriguzi.pdfIn PDF document text
- http://innospectrum.eu/hirlevel/file/memesizo.pdfIn PDF document text
- https://dtd.com.pk/ckfinder/userfiles/files/xisafixabawagorawixo.pdfIn PDF document text
- http://pitin-akutsu.com/js/upload/files/fenogapav.pdfIn PDF document text
- https://tuoitre.bacgiang.gov.vn/lib/ckfinder/files/pezazutegebarude.pdfIn PDF document text
- http://rld-carbon.com/file/60909259223.pdfIn PDF document text
- http://ekonopuntos.com/campannas/file/wipiwumipawejuxe.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16134c9c261422---wirejolenazol.pdfIn PDF document text
- https://ddmmaze.altruistictech.org/documents/img/upload/files/tagokexutujize.pdfIn PDF document text
- http://toyotacri.com/userfiles/files/59391013213.pdfIn PDF document text
- http://villa-carlshorst.de/sites/default/files/file/lovugufeveba.pdfIn PDF document text
- http://huthamcauquanggiap.com/upload/files/97117916427.pdfIn PDF document text
- http://uniroll.pl/user_images/file/65716271087.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/nadokazewatoz.pdfIn PDF document text
- http://cn-daomeng.com/upload/userfiles/files/914410450a56de3a238ac389f82fcd94.pdfIn PDF document text
- http://sutinlawkrabi.com/ckfinder/userfiles/files/7857266611.pdfIn PDF document text
- http://landonintergroup.com/ckfinder/userfiles/files/bijabawasasamajikaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+save+things+as+a+pdfPDF link annotation
- 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_off0000bcd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCD4 | 10772 bytes |
SHA-256: b8b7f3418ff0b874e17a6639e4ac07ad9e88b321c9c00dd8511dc0020a5ae079 |
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font_01_sfnt_off0000d568.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD568 | 16032 bytes |
SHA-256: b5b6cdeeca7cf9f7411d3ed7f14943523af7e0f1f19498c5068bd98bf61a2512 |
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font_02_sfnt_off0000fe79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE79 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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