MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. Heuristics indicate the document functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous links, including those with 'utm_term' parameters suggesting tracking, points towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://santehsevast.ru/userfiles/files/26747653404.pdf In PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/172a73c80820169b79f7c77f8af02561/dugux.pdfIn PDF document text
- https://nbc.com.vn/ckfinder/userfiles/files/xavexopuwefizewoma.pdfIn PDF document text
- http://newgoodluckcrane.com/admin/uploadfiles/file/rixitilazavep.pdfIn PDF document text
- http://vucert.vn/uploads/files/99290297621.pdfIn PDF document text
- http://mp-journal.com/media/file/zabokomevepo.pdfIn PDF document text
- http://dreambeauty.kr/upload/fckeditor/file/1517275667.pdfIn PDF document text
- http://geometracosentino.com/userfiles/files/85439741637.pdfIn PDF document text
- http://daehnfeldt.com/userfiles/file/nufubukuzufalipupuza.pdfIn PDF document text
- http://nhakhoauytinhaiphong.com/upload/files/namosadazonudamufomoriz.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/botuwegofoxaroluvupigimob.pdfIn PDF document text
- http://jysfh.com/upload_fck/file/2021-9-3/20210903000152360029.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16139db74c26af---nuguxalagiwu.pdfIn PDF document text
- https://bestcoloringpages.com/userfiles/file/49436795502.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613babec772e8---sipuvore.pdfIn PDF document text
- https://loffoxfitness.mvwebsolution.com/userfiles/files/71799089703.pdfIn PDF document text
- http://climtech.com/files/files/95418818169.pdfIn PDF document text
- https://santchavarabed.in/ckfinder/userfiles/files/wawevudegalivo.pdfIn PDF document text
- http://bon-mar.com/fck_user_files/file/91560034927.pdfIn PDF document text
- http://xn--djr00fsyfv0o5qgy9u.com/filespath/files/20210912125520.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/81cc1e076e214a9bde3e5715e2f291f0/bejusavipu.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613348cbef30d---44765085647.pdfIn PDF document text
- http://glamour-nsk.ru/ckfinder/userfiles/files/29721487935.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/nogifatovivupuwofego.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=fb+hack+app+downloadPDF link annotation
- 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_off0000bc9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC9C | 16500 bytes |
SHA-256: 424b26fb9baeceac2546c8bceb5fa1e3564be80ee451962748d46285dfd52f21 |
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font_01_sfnt_off0000e6e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fefb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFB | 10316 bytes |
SHA-256: 20804d9694f38cfc92324492145a16b51eb500043323a5c1d5702aaf7ad163f6 |
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