MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that form a link farm, directing users to potentially malicious or phishing sites. Heuristics indicate these links are often hosted on compromised CMS uploads or disposable domains, suggesting a tactic to distribute malware or phish credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to 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 https://catamma.ru/uplcv?utm_term=streaming+film+365+days PDF link annotation
- https://novinfasteners.com/userfiles/file/18110657046.pdfIn PDF document text
- http://daivupaint.com/img-chamthi/files/12688803227.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161318d884c9df---27524996131.pdfIn PDF document text
- http://nyett.hk/uploads/news/files/67469033344.pdfIn PDF document text
- http://pincesorvarshop.hu/editor_up/vonemurepotowolokor.pdfIn PDF document text
- https://afayl.com/userfiles/file/xuxomigisenozekapatewux.pdfIn PDF document text
- http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/65373629391.pdfIn PDF document text
- http://sampoernastrategic.com/uploads/image/files/luputotipete.pdfIn PDF document text
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/78723770735.pdfIn PDF document text
- https://ssvacancy.com/ckfinder/userfiles/files/84976626553.pdfIn PDF document text
- https://bonekarusa.com/contents/files/92473147198.pdfIn PDF document text
- http://hzkontejnery.cz/ckfinder/userfiles/files/22811379810.pdfIn PDF document text
- https://karatenarrewarren.com.au/ckfinder/userfiles/files/92370491776.pdfIn PDF document text
- https://askisan.com/upload/ckfinder/files/xulelovemawukutef.pdfIn PDF document text
- http://gelateriacool.it/userfiles/files/giziwitilix.pdfIn PDF document text
- http://recko.ru/ckfinder/userfiles/files/25592480040.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a1f62084f---fanomovimumevuliwulafodu.pdfIn PDF document text
- http://ulv-fogger.es/d/files/89218804204.pdfIn PDF document text
- http://www.neoneophytou.com/ckfinder/userfiles/files/xawuxinix.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/64505577629.pdfIn PDF document text
- https://tw-itemaos.com/ckfinder/userfiles/files/13233838897.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe3acf0a18---julapokudowodavopedirenem.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_off00010711.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10711 | 11240 bytes |
SHA-256: 80bad6a38c3e1a64ff803f092a5001d88f42959caf72d2a764382e28fb38fab2 |
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font_01_sfnt_off00012145.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12145 | 19956 bytes |
SHA-256: 27aa6212102e0d7afe9c64ba466ae0b85100f0741e56685157c2abd4c6662b34 |
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font_02_sfnt_off000155a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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