MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://tonwen.org/userfiles/file/34195874896.pdf In PDF document text
- http://sartor.ru/upload/files/59620060231.pdfIn PDF document text
- http://olympicburger1988.com/uploads/files/48314954713.pdfIn PDF document text
- http://www.culturehousesun.org/photos/file/23705660640.pdfIn PDF document text
- http://gnox.vn/upload/files/7503511435.pdfIn PDF document text
- http://220-wm01.netdbhosting.com/file/99359902453.pdfIn PDF document text
- https://gogreenonline.net/userfiles/image/fckeditor/file/wosiniruju.pdfIn PDF document text
- http://saraswatishikshamandir.com/singhania/downloads/file/74921158332.pdfIn PDF document text
- http://romanasulcikova.cz/userfiles/gosenekabugajegowijajuwa.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/537fb3ddebf3db7b2b072ffe63952369/75062903285.pdfIn PDF document text
- http://stavclearing.ru/upload/files/nemexisujifepa.pdfIn PDF document text
- http://herborgthailand.com/file_media/file_image/file/10895268143.pdfIn PDF document text
- http://buzmakov-ua.ru/admin/ckfinder/userfiles/files/podoboxunodemadabi.pdfIn PDF document text
- https://www.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/golosazanozeranuj.pdfIn PDF document text
- http://hotelrefah4ter.ir/basefile/hotelrefah4terir/files/71080964183.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613120b05885b---rututazuxuvoke.pdfIn PDF document text
- http://ambulatorioveterinariorigolon.eu/userfiles/files/midewalijowesilinit.pdfIn PDF document text
- http://futsalcb.cz/picture/vtextu/file/22172129234.pdfIn PDF document text
- http://zeci.nl/im/image/35073649905.pdfIn PDF document text
- http://chugguwang.com/files/fckeditor/file/45461903041.pdfIn PDF document text
- https://z87992961.com/upload/files/20210922160125.pdfIn PDF document text
- https://groupunsur3.com/contents/files/jetirizofefazosu.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132252622a9a---42945646294.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=drag+battle+racing+mod+apkPDF 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_off0000d78d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD78D | 10924 bytes |
SHA-256: 9d366f6e20a8dc38b0ae52e766d16956c4ca2e8ff1253c2c28a1845e966a9def |
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font_01_sfnt_off0000f05b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05B | 17956 bytes |
SHA-256: fa9a14799b737b7793d30c1c9efa1ebd48b5ca981436fcb44cb672b2c781cabb |
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font_02_sfnt_off00011edb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EDB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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