MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress upload directories and other domains. These links likely serve as a distribution point for further malicious payloads or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://crysiq.ru/uplcv?utm_term=got+sidetracked+meaning PDF link annotation
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/lvoidani4o87p2jmqis6u1qmfl/59548850618.pdfIn PDF document text
- http://22743333.com/userfiles/files/2949293016.pdfIn PDF document text
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a54ea47962c---99809602098.pdfIn PDF document text
- http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/nurus.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-5-16/20210516165718376720.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16095b636dc593---besudomugilibufufo.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/9fkofbbtchqlp0ch0me37vk5oh/79615065575.pdfIn PDF document text
- https://bjjewels.net/nbloom/fckuploads/file/13265375751.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/remug.pdfIn PDF document text
- https://herfection.tw/upload/ckfinder_temp/files/20210622200557.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16097ba867ec06---39588645178.pdfIn PDF document text
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/23502379761.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/aac818ad942ef1eb9e9177a17a7f8ecc/21463051339.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/ad9500c7db20029d506c61584fb0ca7c/mimenom.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/l33p52uicdjae9jgrohoju44un/80096771931.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1607935fd7b494---20155303184.pdfIn PDF document text
- https://tyeetomsfishing.com/userfiles/file/bijekopovox.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b636ebd8291---radotadabijobirabiwejiw.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a23936164cb---volujijosibux.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/9meustjecrbssu038l2c38624q/78954363577.pdfIn PDF document text
- http://dobrasekacka.cz/userfiles/file/nerifibivikefiweze.pdfIn PDF document text
- https://securitegenerale.tn/userfiles/file/lufagixova.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a453b624404.pdfIn PDF document text
- https://chung-pei.com/userfiles/file/zirowagepuzilofigotijut.pdfIn PDF document text
- http://mmbc.cz/_data/user_files/file/93917377555.pdfIn PDF document text
- https://aravlicraft.com/cmsCart//upload/file/36220265721.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3C | 17792 bytes |
SHA-256: 506c9121e6534f75f2da472df725cee89a1fcf6d86a12600f7ef70885a47d5d0 |
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font_01_sfnt_off000108d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108D0 | 10800 bytes |
SHA-256: e3f51bc65d64e6b4e38383e8a8ca7053226d831c53e88c5f86c750b96ec4abb2 |
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font_02_sfnt_off0001218b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1218B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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