MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many pointing to WordPress sites utilizing the 'super-forms' plugin, indicating a link farm designed to obscure malicious destinations. ClamAV detected this file as Pdf.Phishing.Trojan, and the ML classifier assigned a high probability of maliciousness. The presence of embedded JavaScript, though not directly analyzed for specific actions, is often used in such PDFs to facilitate redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://study-go.info/wp-content/plugins/super-forms/uploads/php/files/49b81e149a0a30cc42ac7b90c293b402/54581528031.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/aankvhd2js3l14ms741simqm3v/28622888307.pdf
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/0772244da73b115c4d8bf816cecdcb6a/bomimubizub.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/f9ab0ldb07e6g1411vgdl69pak/5048696324.pdf
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/64711863ea0774b03bf2098a653b6d77/87455160786.pdf
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/c89e7a5484fcd7f7fa0e14bf39409da7/16217907126.pdf
- http://nova-auto.com/upload/mokajemalij.pdf
- http://adabaskimerkezi.com/upload/file/8503426070.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f8c5ec3ff---62149861195.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/9p251chmjoafgv0lo1mqi2ma9r/90727294555.pdf
- http://www.mueblesgamez.com/ckfinder/userfiles/files/dader.pdf
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8ab206aa0595b61ae103541091b31511/wejaku.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090fddda30a0---1809624883.pdf
- http://4bzsoftware.com/Images_upload/files/musofelotodotokejaxo.pdf
- https://dialogueinpraxis.net/files/docs/47465952532.pdf
- https://uclerbaklava.com/resources/file/29830686515.pdf
- http://shipagents.nl/uploadfiles/file/gofovixovuj.pdf
- https://doctorchina168.com/upload/files/suduzavutamofis.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/f93b309d1895007f436dc99367bee440/zupofedapolutaz.pdf
- https://ajitcoatings.com/uploads/37279085825.pdf
- http://samtekelektrik.com/files/netote.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc5764af1a---begusekoj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=fifo+process+costing+method
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f78d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78D | 16792 bytes |
font_01_sfnt_off00010f9f.bindd8808da788ba5231f935b019cec97b0c9d4346687347c13a54b62bb697acb02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F9F | 16976 bytes |
font_02_sfnt_off00013bc5.binbd58444536f57c581b22daa90f743ea2c0ae72968f803df8c4ede9ea3e937edc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BC5 | 10836 bytes |
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