MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://inwebjor.ru/uplcv?utm_term=count+rows+in+excel+worksheet PDF link annotation
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9ae89c3277---86275171942.pdfIn PDF document text
- https://digireg.cn/upload/kuxanalef.pdfIn PDF document text
- http://ride.hu/images/uploads/files/7156238916.pdfIn PDF document text
- https://www.esfa.bg/root/ckfinder/userfiles/files/16805291286.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/pinujarotowivix.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbc7b2b0bfb---zixudusutob.pdfIn PDF document text
- http://studiogalata.it/userfiles/files/wipalabobosekixu.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1610e1398c2426---busanij.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/pisokf5aaopn64739gvalr2cv5/62299399372.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/viduxuk.pdfIn PDF document text
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/161099ebc9b3f3---felumakurigaguwiziv.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610057fb0824b---28674040125.pdfIn PDF document text
- http://arniestribu.com/campannas/file/20041020279.pdfIn PDF document text
- https://samowar.ch/upload/file/81675935479.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/ap9i4girsdt1rsbm77dvkqakag/11671882107.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/aaf1c981784e9c0803d0e505c4549ea5/56035204376.pdfIn PDF document text
- https://tungqibiotech.com/upfiles/editor/files/59789593613.pdfIn PDF document text
- http://apothepharma.com/upload/files/44783953911.pdfIn PDF document text
- http://cnhhgj.com/upfiles/userfiles/file/lubatus.pdfIn PDF document text
- http://nbc.com.vn/ckfinder/userfiles/files/panazerewaxutarujot.pdfIn PDF document text
- https://epiphanych.com/images/file/zofisamoxadatikofad.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_off0000d8cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8CF | 10576 bytes |
SHA-256: d9b7ec7a14707c8ce1ebd19f777a0c6bdf851b4d45ea9234eb45b36f44d9dcac |
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font_01_sfnt_off0000f103.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF103 | 19112 bytes |
SHA-256: ac071830b46d526a7a44df98d2a39a17b2de67cdcc22c51330f52b731b4ee380 |
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font_02_sfnt_off000122e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122E1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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