MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to compromised websites and disposable hosting, indicative of a link farm designed to redirect users to malicious content. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://coretry.ru/uplcv?utm_term=using+tor+browser
- http://gianniarnaudo.com/userfiles/files/kimolexu.pdf
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/ed7806cde53b1863d4b2065e6f65b25f/xilunujatiwibipuranuva.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/1789763c4e41f4782a70a6c50da107ac/vidilitimiviruxopelifor.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098c50da6cec---gunezuwuwepu.pdf
- http://imreelectric.sk/uploads/file/zelifofuderusesagadib.pdf
- http://bahattinburyan.com/userfiles/file/16685326613.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606c933738946---96475164358.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160742083e1df7---51155150425.pdf
- http://wksystems.net/HotelEstimator/userfiles/file/30174430005.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/6p8hkprhe4jja3nlqh0ki3ees7/kojupe.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6d40bb8590---27010210354.pdf
- http://allprintusa.com/admin/images/file/80137880665.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/24f66da9331f216f5757c69f42b0ea87/24883841928.pdf
- https://rybczewice.pl/userfiles/file/63344839540.pdf
- http://kpotplace.com/uploads/files/85885616070.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7599913e2---90346180676.pdf
- https://devcons.org/uploads/userfiles/files/xifososalatusowog.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/01a67399ee53cf4253220e1de119632d/34897500196.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/763b2c98408e7604acc5b6332edc168c/8604964261.pdf
- http://tafgambiatours.com/userfiles/file/18780194854.pdf
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/qpagthabudmuf8n5p6f29upnib/76833139256.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a567b5790a5---30248278255.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abdc58bf5d1.pdf
- http://4reality.cz/userfiles/files/zukorozono.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/2b18d403cbcc0e200527d42346d381b0/ruxawurupusum.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_off0000f7a2.binca656dd5bba21fa5d0324cea91c478d31ef8d6c2ee763e5d381f5ec68021afdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7A2 | 16948 bytes |
font_01_sfnt_off00012390.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12390 | 16792 bytes |
font_02_sfnt_off00013ba7.bin7881fca84c8b40f044be201dc39048847ee2fc7069c7f82bb8927a902d26ce1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BA7 | 10308 bytes |
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