MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to distribute further malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a tactic to obscure the true destination and leverage compromised infrastructure. While no scripts were explicitly extracted, the nature of the heuristics and the embedded URLs strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/4bjt5ep94bu97neo0bmisu2tp5/ratexamizedosub.pdf In PDF document text
- https://aokman-drive.com/d/files/vageveseponep.pdfIn PDF document text
- http://cukiernia-waltar.pl/qcms/userfiles/file/wozomiziwezi.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/boxikutigu.pdfIn PDF document text
- http://promador.pl/userfiles/file/57330359665.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b15ceece31a---zajikosojikeletekogi.pdfIn PDF document text
- http://studioaba.net/userfiles/files/lokojuzotod.pdfIn PDF document text
- http://staresecurity.com/userfiles/file/55726092587.pdfIn PDF document text
- https://www.retake.dk/ckfinder/userfiles/files/83801452484.pdfIn PDF document text
- https://deniz-sogutma.org/img/userfiles/file/lovomefaguzakukafozugagul.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a0048cade75---41047715569.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606caf63560b9---12083130988.pdfIn PDF document text
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/6n4g92b9cc61dct53k5ie01tc6/41574398097.pdfIn PDF document text
- https://0800-707-808.com/upload/ckfinder_temp/files/20210812212831.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/27063535356.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a40eb1acea---xuboloxeribobekaf.pdfIn PDF document text
- http://aurora-c.jp/files/files/46786665104.pdfIn PDF document text
- https://kocarbonag.com/luutru/files/borazipore.pdfIn PDF document text
- http://ngocvietbungalow.com/upload/files/zaruwifanigagu.pdfIn PDF document text
- http://tbff-bygg.se/img/files/73304816744.pdfIn PDF document text
- http://enotecagaribaldi.it/userfiles/files/wuxin.pdfIn PDF document text
- http://mppscstudy.com/admin/usercontent/file/92236139775.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/17580297145.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=pollyanna+sinhala+book+pdf+free+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_off0000fd94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD94 | 18504 bytes |
SHA-256: f3f138a4aba47616379d85505e30f13c9fef6203e0d0d1c0c7854e9d33a329e0 |
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font_01_sfnt_off00012ca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CA9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000144c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144C0 | 10928 bytes |
SHA-256: e46eda58eb7f2c041beb6283e7a01388336a1575fca1ff560d7275d1ea0ae9c5 |
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