MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by multiple heuristics as a malicious PDF, including a critical ClamAV detection and a high ML score. It contains numerous embedded URLs pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URIs strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://synerhu.ru/uplcv?utm_term=how+to+make+rarawr+in+monster+legends
- https://suavitinhtannha.net/upload/files/bofoj.pdf
- http://njuhome.pl/ckfinder/userfiles/files/64925874780.pdf
- http://www.agenbenangbandung.net/file/dawaforudojonerakufod.pdf
- https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/b7e6fd3304931c5cf7126125d9982b27/90363941685.pdf
- https://bodzlomu.com/userfiles/file/koguvitude.pdf
- http://grgct.com/ckfinder/userfiles/files/buburegobimawawag.pdf
- http://big-blue-bus.com/pics/fotos/1/file/40322889499.pdf
- http://mrpokedb.com/uploads/files/rapiwojererum.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/02f1497259298dc969e2bbb48fe84c04/bemaloxaxuxesuwu.pdf
- http://alexanderkanevskyartistbiography.com/clientMedia/file/torazetuw.pdf
- https://motelandratecuci.ro/userfiles/file/11237229204.pdf
- https://peterdegendt.be/file/gerisisoxisevekefeve.pdf
- http://ankurgroups.com/userfiles/file/vapenurigagorune.pdf
- https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/19ad7d3c4e35809237ccd58b61d1b9b3/77015680125.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/33316bd51c6ee2a495200cdd78be4ee4/dexesanulosesirusepu.pdf
- http://cbgnfinance.com/userfiles/file/mojibilesam.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bb930991b6e---xafebidapepaxiwemazeze.pdf
- http://machulski.com/public/file/98284616097.pdf
- https://karlschool.org/uploads/files/202108232053062573.pdf
- http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/16527794559.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed15d54160---furazabu.pdf
- http://synthecinter.com/userfiles/files/pukojokunewit.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6165e3665e---80660165966.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_off0000f1d4.bin43f9b27e97208ad36d1d7c7a6e8bdeccaf07c1eb475e00a5693ec7e27debe392 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D4 | 10760 bytes |
font_01_sfnt_off00010a53.binc55c24c205c508c53b8f88a2830fc67761c6964989df54d8d30da9acc6490f06 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A53 | 18800 bytes |
font_02_sfnt_off00013b53.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B53 | 16792 bytes |
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