MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected by ClamAV as a phishing trojan. It contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The embedded JavaScript likely facilitates the redirection or exploits a vulnerability to execute further malicious code.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://medvor.ru/uplcv?utm_term=nuclear+and+particle+physics+martin+pdf PDF link annotation
- https://almudenafernandez.co/ckfinder/userfiles/Files/fibazixewavabixedezojemox.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/49183990509.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613a45d2321f2---dukisemibefefuworuli.pdfIn PDF document text
- https://i-try.tw/upfile/files/2021/09/04/jigikosuja.pdfIn PDF document text
- http://pazzo.jp/js/upload/files/7922679745.pdfIn PDF document text
- https://eventpro-kontraktorpameran.com/uploaded/files/99012168158.pdfIn PDF document text
- https://evpersoneli.net/ev-personeli/file/72154417218.pdfIn PDF document text
- http://hangquangauto.com/files/69910124952.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/161373563952fa---pegifisigijitoz.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136971256cbe---34052698145.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/l6ugnhrferficdltgh9l83vtj4/zabivarexosilife.pdfIn PDF document text
- http://energo-market.ru/sadm_files/pudajuxus.pdfIn PDF document text
- https://www.shropshirefurniture.co.uk/admin/ckfinder/userfiles/files/15631283433.pdfIn PDF document text
- https://tomclarkvoiceovers.com/userfiles/files/71397995375.pdfIn PDF document text
- http://otohondamientay.com/upload/files/23873366985.pdfIn PDF document text
- http://csc0311.com/userfiles/file/20210912222256_mgueot.pdfIn PDF document text
- https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/liroretatajegirufo.pdfIn PDF document text
- http://farmaciafoglia.eu/userfiles/files/99516983219.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613362a39aa9b---52841828221.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/kububepeken.pdfIn PDF document text
- https://gospel-streams.com/asset/ckfinder/userfiles/files/gomovak.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ee50d1d76---81866032358.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_off0000c67b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC67B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000de92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE92 | 10956 bytes |
SHA-256: 6eb570885675d5724a9c8867ad8752eceadcfcce17524a5edce63402ee147115 |
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font_02_sfnt_off0000f7c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C8 | 18436 bytes |
SHA-256: 8ed28e4d4cc976ba76f65e7d9a39118997a7cd0cae34bf65848c84ab59e58995 |
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