MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting an attempt to lure users to malicious content or phishing pages. The presence of a link farm on disposable hosting further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/s3riogj1d0jdvp8srhbjc7fc81/fabubeberonevof.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab97eb3743---vidugulotijeginurofo.pdf
- https://adasms.fr/userfiles/file/23726472932.pdf
- http://forglass.sk/userfiles/file/38300625097.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a8fa4a98f---75030238356.pdf
- http://vodnik48.ru/content/file/xixowufeginire.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7010bad792---jegepapunigatupuwutaperew.pdf
- http://akcjonariusz.com/UserFiles/file/33535477735.pdf
- http://gdlianyu.com/uploadfiles/file/76601648300.pdf
- https://acryl-bg.com/userfiles/file/52492361956.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160906d378e8ef---66696147471.pdf
- http://www.moyekolodin.com/files/9479874615.pdf
- http://shuswapladystriders.ca/userfiles/file/72232119327.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076d2c77a099---88525218712.pdf
- http://ei-windykacja.pl/upload/file/90774562140.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/d19311055fff19ccbf19ea485b6e8a9d/wumusom.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb804d8dfd0---79406334824.pdf
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/67mirevao4e88omvjlh23lqhuj/tagukaxogukapawedefab.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d6285984ec1---56134664852.pdf
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985d84a6dfa---85859069127.pdf
- http://tovicetour.com/FileData/ckfinder/files/20210612_5F235CF007E77F32.pdf
- https://aftaplan.com/works/peepsparty/html/upload_files/file/zokorisivojanukuxodus.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/5e2453ec332758402d3d2f830f8f0c2f/witekejaxarigiribobe.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=cfec+outage+map
- 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_off000101fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101FE | 16792 bytes |
font_01_sfnt_off00011a15.bind8681a5280ef9eb9938887c7c2d67a48756863be7c6dc7a6628d3880f87d0c81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A15 | 10444 bytes |
font_02_sfnt_off000131e0.binf44c2d99869669df3346cead42b5aeebe084a9a6821eec328666778e239a347c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131E0 | 17768 bytes |
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