MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to websites hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to lure users to potentially malicious sites. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://tzsunup.com/upload/61263920241.pdf In PDF document text
- http://agierresrl.it/userfiles/files/15675018653.pdfIn PDF document text
- http://youngdongtec.com/userfiles/file/49145772859.pdfIn PDF document text
- http://thermcom.cz/userfiles/file/feburuxadojaxami.pdfIn PDF document text
- https://vinatech.com/userfiles/file/jimuwibufefipadixate.pdfIn PDF document text
- https://emmaushuis.org/pages/35859088182.pdfIn PDF document text
- http://yigang-lin.com/uploads/files/202109081130111525.pdfIn PDF document text
- https://legend-chang.com/UserFiles/files/47844173228.pdfIn PDF document text
- https://arte-salon.ru/upload_picture/bulerafafibogibijosamer.pdfIn PDF document text
- http://bladensburg.abwingsmd.com/uploads/files/1243100971.pdfIn PDF document text
- https://lixtech.com.tw/ckfinder/ckfiles/files/diwiwuk.pdfIn PDF document text
- http://89928386.com/uploads/files/202109052137453777.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/ppbm7o13agmid291ds6a761ssk/25888166544.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138038be1a52---zezebabog.pdfIn PDF document text
- http://jandebruijn.com/uploadimages/files/81963253731.pdfIn PDF document text
- https://livermore.com/wysiwygfiles/file/37848999328.pdfIn PDF document text
- http://edu-family72.ru/content/images/uploads/file/vaxomunigelunasewaron.pdfIn PDF document text
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/161329dfc38576---kawixivilelow.pdfIn PDF document text
- http://acpiindia.com/userfiles/file/nobilizetuwetis.pdfIn PDF document text
- http://megalaserasia.com/upload///gomebivasatisopagipitix.pdfIn PDF document text
- https://luathoanghuy.com/uploads/files/kijitet.pdfIn PDF document text
- https://www.abandassociates.com/ckfinder/userfiles/files/xikodur.pdfIn PDF document text
- https://olboihorgaszto.hu/editor_up2/puvezuvexowux.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=web+browser+on+android+tvPDF 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_off0000de36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE36 | 16964 bytes |
SHA-256: b83966f34c78e8a4e2b040c68babb0950ac3ebe2c73b74ac8ef9d1bc639cac9e |
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font_01_sfnt_off00010a2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A2C | 10480 bytes |
SHA-256: 5883c54b3079cb13eee8024520bd792bdd8d48b919ab01d454656aa26b419f21 |
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font_02_sfnt_off00012234.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12234 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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