MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier. It contains a large number of external URIs, many pointing to compromised WordPress uploads, suggesting it's part of a link farm designed to redirect users to malicious sites. The malformed stream length heuristic also indicates potential exploit activity within the PDF structure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://wastran.ru/uplcv?utm_term=stained+glass+slope+graphing+linear+equations PDF link annotation
- https://andrejc.si/files/file/gurexaresaxegobal.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f664e736c8---74447038187.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/nenikejerita.pdfIn PDF document text
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/5ceblrp60cmic1vrp2un4ttuho/kedeb.pdfIn PDF document text
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160807f01a994a---11990508992.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16074380e395a8---pajuluwanofixijevinonif.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e9883b278---7134085298.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/e23add8e1644e500f29f26166221e7a9/lufelotozaliduzupubojapa.pdfIn PDF document text
- https://medtek.vn/storage/file/11394775962.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160745ec74c941---karewisa.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/9ce8568e52073b9e27b5cd3346b8aa24/nabulidifonodexo.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e6d6bc717---zudibusudepomuzu.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/0t6q2df4ok2e1urtqe5dl4dt96/lizotopekotu.pdfIn PDF document text
- http://stlnsk.ru/uploads/file/ruxizojoxobetivosivi.pdfIn PDF document text
- https://artlabjo.com/userfiles/file/pizagosiwixixaxotavefa.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/60a132c865b85b47898c6bb69b5688c6/darewo.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/0a51d0bomtoo15b959203uein0/wepurosaberuvemusexir.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160791a4f41451---6462035897.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/c66b40cd636659b2edbcb7f9c94a13e3/27815924248.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160824c6ccfb46---87061933482.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16098d35ff170c---wafikakefifuwojetab.pdfIn PDF document text
- http://kfnmdg.com/upfolder/e/files/20210624075441.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/15bf1faa3b9dfbbd86dc54ff518b6a80/50405137467.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160802ea741298---rolinepaditowojobivek.pdfIn PDF document text
- https://vibangthuaphatlai.net/uploads/files/52059404014.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea6b9c6119---jexozijowupivugimixiz.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_off0000d7df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DF | 10992 bytes |
SHA-256: b2607f9af67789fe779934e956e7aca00a2ee405e030a7a7779e7351db312052 |
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font_01_sfnt_off0000f0c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000108d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108D3 | 16076 bytes |
SHA-256: 7fe0b0e101a122035bf18ec12a5025f3acfdfc6d2c5a25dd5a8ee23b5826b777 |
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