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 compromised websites or disposable hosting, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious content or downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://vivaldiskibus.com/FileData/ckfinder/files/20210901_7F5D04E61FA9C5E1.pdf
- http://canadapremiumlubes.com/survey/userfiles/files/dafud.pdf
- http://getsolarnj.com/userfiles/file/rupaxejoganemosigenufol.pdf
- https://btsmstlucia.com/atomicsteps/upload/userfiles/file/50702133308.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/04f84577bcf61055f7448a7c7d60fea1/77724159121.pdf
- http://fujieshubao.com/zk/UploadFile/file/2021092904563273499.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613c6dddeced3---14566944223.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/823a000a9cad5a987b497f9c46534ef7/lolinurasesejirozozu.pdf
- http://acril.ru/ufiles/files/34587438140.pdf
- http://clinicaveterinariagoitese.it/userfiles/files/lagogevarebigidoledoki.pdf
- http://mynigaoe.com/upload/file/20210910054158.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131e223c78dd---lugip.pdf
- https://maychieuvinh.vn/upload/files/rosimofibo.pdf
- http://loaamtran.vn/files/usersfiles/files/90660212545.pdf
- http://chinazzjx.com/d/files/14538037173.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/pqkmimid7e07j6o1e0ercud9a1/49394742616.pdf
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/vezom.pdf
- https://flims.atelierleuthold.ch/userfiles/files/ziwumatetegisixadofirab.pdf
- http://dongbanja.com/userData/ebizro_board/file/20418049031.pdf
- http://askort.pl/Upload/file/gepozonerimerazuxares.pdf
- http://nghiencuuykhoa.com/uploads/userfiles/file/jodovobamer.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=appearance+vs+reality+twelfth+night
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db5c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB5C | 16792 bytes |
font_01_sfnt_off0000f373.bin2214fda2305beff1034abb82dd7d345cb8ba53197e809183dd44896fda724155 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF373 | 10884 bytes |
font_02_sfnt_off00010caa.bin3df75ada6f3e7c19a45bbe62716b64cf0a7a0933025b8f35de11ea3c06031681 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAA | 18184 bytes |
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