MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to leverage external compromised infrastructure for distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609b26288b15e---womisepe.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160b05d30857f3---74231924567.pdf
- http://beymersan.org/upload/files/nezixigujib.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a98ae70e558---19367877792.pdf
- http://qianxish.com/ckfind_image/files/numaviferiz.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/3155d3dabd3c20a5d08364945d7f550d/94245821113.pdf
- https://nezrenpin.com/calisma2/files/uploads/muxorugisojimeporebujov.pdf
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/dcc95ea79116915d82605a0d98648b30/ditowujeduzavekezifugigod.pdf
- http://shinies.ru/img/lib/file/wadulutananudimezeni.pdf
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160743b5f32c0d---16963123292.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e6a14e7b9c---nonisaverumekoruderaxomaj.pdf
- http://c-six.it/userfiles/files/buturujolupolenutivaj.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/318132d2edeb71eb0fe8d2328a0ab267/pudukuzumoz.pdf
- https://doluhosting.com/calisma2/files/uploads/40158068388.pdf
- http://incomsistema.ru/ckfinder/userfiles/files/18399002073.pdf
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/1f8cb49dfb480ef9e26a1bb78ae2a61a/malupudulan.pdf
- http://mmbc.cz/_data/user_files/file/72751495291.pdf
- http://erdbau-rauch.at/49002496970.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f04b2e8ed4c---foxozunanifo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=one+hour+slippers+crochet+pattern
- 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_off0000ce0e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE0E | 16792 bytes |
font_01_sfnt_off0000e620.bin310b5ee8239c26e99d86d5e0c552e755db55dc9c93f1c7c7b4935cd68733d9f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE620 | 17252 bytes |
font_02_sfnt_off00011290.binaf9c77e80872e353f2078d0433b42dc2e30515288e6c9eb13e5b618d3d541976 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11290 | 10596 bytes |
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