MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and link farm heuristics strongly suggest it's part of a phishing or malware distribution campaign, likely leveraging embedded JavaScript for redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://crysiq.ru/uplcv?utm_term=countable+and+countable+nouns
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/23mjgig6ssotu2t47dde28cnc3/sofevabufevofot.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16091cb985dc38---92450268329.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e773ee24a---74189668233.pdf
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608050a849760---38498424695.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085ce0d0bc0a---16235425443.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1bdc5c9ad6---fumojegemiduvexobediweli.pdf
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/160b43fca6ea7e---gevuputeduvope.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160be40575c585---7409115811.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/7d03e143f86458449b2a82ed835e2cee/93281028552.pdf
- http://music-saikung.com/ckfinder/userfiles/files/7386673338.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/v5eht4ioklee4dhn2r6c9gif4u/69124196028.pdf
- http://dogalakustik.com/depo/sayfaresim/file/xazavoxujofuziwipowedab.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/9cbe7bab8c696c3ad72666b715d16259/lopunekosipariropevomijaz.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/b702abbd856060a1f530e3c281e18880/litevuvedepufafe.pdf
- https://charlesstreetvideo.com/userfiles/file/kifinumarelinaran.pdf
- https://dichocungtoi.com/userfiles/file/62363225016.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16090d3f84c71c---83468296400.pdf
- http://hoshitorionline.com/uploads/files/25404610765.pdf
- http://agrion.org/upload/fichier/77219258945.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a28c3272b54---safaze.pdf
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/e35f1f047bff6eb2a3e31ea6d0565a10/39936811789.pdf
- http://luberoff.com/userfiles/file/69065595015.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b861675cd7e---31294871113.pdf
- 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_off0000e7cd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7CD | 16792 bytes |
font_01_sfnt_off0000ffe4.bine78c19955dbf68a911202ee9639e789bd71af7542dd6cc9e9395dd90085c90fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE4 | 10444 bytes |
font_02_sfnt_off000117c9.binc8c6f3ae10802a5d96bf45060ec1060adbb87646cb8fa8254dc3745847391222 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117C9 | 16892 bytes |
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