MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains a large number of external links, many pointing to compromised or disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://writtenmail.com/upload_images/file/ferewokomaw.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c68310eef3---beluvaxitebelojavaw.pdf
- https://aduanaldelvalle.mx/userfiles/file/gugelifuzeruwituvijaren.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8081471a9f752a426c1e99f0def10068/46113874826.pdf
- http://big-blue-bus.com/pics/fotos/1/file/56638233441.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/ea40120d93d647241af6871b00680beb/nululebugizuxajotixetim.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f4097ab66---lozaxad.pdf
- https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/52115918939.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/9bd1bb63b8dbe9967252a9df89782979/90027357837.pdf
- http://uptownherndon.com/uploads/files/gawas.pdf
- http://zonwering-nederland.com/ckfinder/userfiles/files/wirunamitodujururoxew.pdf
- http://proxima-design.cz/files/file/matefudefasinanoxunolib.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/1vbu290kdqvtao672n0kafi0h0/pagilaripelepate.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0a3f362e8---xafigijedujemo.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/31777317239.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/ccf5648dbc4ee8cbfdcc67d4d673a0aa/tadafexuvem.pdf
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/puvonidewaga.pdf
- https://zlato-eu.cz/upload/files/jipafam.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/25c845fa5234d6a0a990d72cc32cbcec/jureviwadu.pdf
- http://fenotropil.ru/userfiles/file/guderiwa.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/ec61f710ed45911e8c05437ed409493b/15309075091.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/g8ih26e2mafc21sb90fbfvqmj3/bozil.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/a3glk98a57h9op1vl047rim6jr/49818516445.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087f51f259aa---mimejexeneza.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074dbaff0d34---3289722091.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070d660bcd74---50141010285.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=gmat+official+guide+advanced+questions+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_off0000d8c2.bin9cc30e434014f43ffb85c7606569340bd4d32a329adb6d6218861a23406b0ed1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C2 | 11216 bytes |
font_01_sfnt_off0000f292.bin0e5b3f9381bb8a9de57445096f72d053dc6bd563874bcfe42a7e8adf04f91b2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF292 | 17692 bytes |
font_02_sfnt_off000120dd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120DD | 16792 bytes |
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