MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV and an ML classifier as malicious. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting a link farm or phishing lure. The presence of these links indicates an attempt to redirect the user to potentially malicious websites, aligning with spearphishing tactics.
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://archism.ru/uplcv?utm_term=zelda+breath+of+the+wild+cooking+recipes+list
- http://gamebonda.com/ckupload/files/tanunuxejaremo.pdf
- http://edu-family72.ru/content/images/uploads/file/sadebekiz.pdf
- http://metisentry.net/ckfinder/userfiles/files/60570863502.pdf
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/c009d0b82338a07c83063f21533a5bb4/46358609588.pdf
- https://nothingbutsafetyglasses.com/userfiles/file/5362620427.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/tpfnck8kenrk6i4rn0qusdfef4/51362912140.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/m6cnmqnveigqg0e7dfv113kn76/43835474311.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/br7aml20ajfgf43lom8k05frg7/39887401338.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/e3029d11592c0b77e19bfecd1bbbc12c/giseri.pdf
- https://akproauto.com/nbloom/fckuploads/file/56205501033.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c237facdc87---14621087028.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df481adae21---zofekufikim.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/720a11621a170ada41c0ccb90c094d9c/nokagukasuxowebemad.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/dolanivixe.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/700eef0298e769a12690cf00ed5c0492/mufeponubilonivosimikut.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608372105ad1c---sutuza.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf9c71e4fb0---movudo.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b9842e32b88---28132049809.pdf
- https://govox.co.uk/wp-content/plugins/super-forms/uploads/php/files/6nhh7g4pmvinqc0f8tcp6acoi2/vamemakubirogexin.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/dp3fjc50nkp46v7ia71bmt1old/lemolototikunabusigenose.pdf
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/e61ae0584eb1bfcd3719679819a57758/nomiwinufuxamigubelonorax.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_off0001b8de.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B8DE | 16792 bytes |
font_01_sfnt_off0001d0f5.bin02f1f969f52794bfee8c73ccebede205e21dc95add8cecd9aa65abcef52b61b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D0F5 | 11180 bytes |
font_02_sfnt_off0001eaae.bin56ce5008e5b6de423d24fba04802dfa68bc872ef626c60d3253dc31a523544e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EAAE | 18548 bytes |
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