MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. Heuristics indicate it functions as a link farm, with numerous embedded URLs pointing to compromised websites and disposable domains. These links likely serve to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://archism.ru/uplcv?utm_term=black+red+wallpaper+hd+for+android PDF link annotation
- http://upakuika.com/img/file/2319933464.pdfIn PDF document text
- http://gocchame.vn/app/webroot/img/uploads/files/98543076276.pdfIn PDF document text
- https://agriplan-rs.com/dados/ckfinder/files/vudituwosomuxupelafajotub.pdfIn PDF document text
- http://5m-tti.com/uploads/image/files/64581047560.pdfIn PDF document text
- http://tndgdemo2.com/ckfinder/userfiles/files/60519947418.pdfIn PDF document text
- http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/96512489573.pdfIn PDF document text
- http://truhlarstvisollner.cz/data/file/28414288929.pdfIn PDF document text
- http://mabifitness.it/userfiles/files/xotopuzejolexexavafegipo.pdfIn PDF document text
- https://history.tlshaa.org.tw/ckfinder/userfiles/files/82787944893.pdfIn PDF document text
- https://unchiulmihai.ro/files/fckeditor/file/sejusofetatavev.pdfIn PDF document text
- http://www.advokat.com/app/webroot/img/fck/file/40533713319.pdfIn PDF document text
- http://bamor.org/userfiles/file/titarewezurogeg.pdfIn PDF document text
- http://agama-rc.com/upload/files/dovalurisavozukuzikir.pdfIn PDF document text
- https://buildingexpertsdirectory.com/ckfinder/userfiles/files/33113260266.pdfIn PDF document text
- https://shinaltd.ru/images/file/derilawarapolavafored.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec7afa5f27---ririduxadobor.pdfIn PDF document text
- http://archbot.pl/files/file/titanuvifarobevituxodivi.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614fe63a6a502---soturumiv.pdfIn PDF document text
- https://media-get.ru/userfiles/files/mizurifakogevukusanudi.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149895820199---70664621824.pdfIn PDF document text
- https://thefencedocumentary.com/adminfiles/file/27658648163.pdfIn PDF document text
- https://butterfly-propertymanagement.com/userfiles/file/32448775981.pdfIn PDF document text
- http://acevina.com/webroot/img/files/41618323467.pdfIn PDF document text
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/24ef0b2e392c1b29b85bf14fd2ed52df/55488062516.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_off0000afca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFCA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c7e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7E1 | 10680 bytes |
SHA-256: 98e78142f9fc35a177ff9714fa8e171f4b173be9d9bccfc14f0792d7ca501758 |
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font_02_sfnt_off0000e053.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE053 | 14996 bytes |
SHA-256: 3c42d6dc95d28b1e1f70d3a6c9595287fd2dd1e276011a5282992e8b4b5ee092 |
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