MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm designed to direct users to malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The presence of multiple distinct hosts and a high number of links per host suggests a coordinated effort to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607faf620fdec---mebumedajuxejoneluw.pdf In PDF document text
- https://binarbaidservices.com/public_html/userfiles/file/57019674685.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160713f9bb65ac---pakin.pdfIn PDF document text
- http://ibb-online.ru/f/file/23398181490.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/nfn1j61f3m0lfvq2e4aalq20mi/36439670562.pdfIn PDF document text
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/56411821069a5a53d9e0d27e6817faa3/wiwasujikutimo.pdfIn PDF document text
- http://ruegen-ferienhaus-schneider.de/userfiles/file/47535473056.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8615b4f09b---remes.pdfIn PDF document text
- http://lsbwg.com/ckfinder/userfiles/files/20210624/0932167332.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/57360982967.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef33579615---88935255246.pdfIn PDF document text
- http://grabnerestriche.at/68938337607.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607df852993ba---79690102528.pdfIn PDF document text
- http://russkiivopros.com/images/FCKeditor/file/15573051217.pdfIn PDF document text
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/ln2httnv0q6jhtpl1sttqhtao3/tojolorivizolin.pdfIn PDF document text
- http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073de43e6302---81316740101.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160986d54308bc---sutepelas.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2cb2834c31---pexasulapububolojenef.pdfIn PDF document text
- http://kythuatviet.vn/uploads/userfiles/file/94409085170.pdfIn PDF document text
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/3m6r8n8drpeekvf3bddhqssleq/pasirolijex.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/9d02bac567f4c0c616df7bf53df0f581/kedilotododati.pdfIn PDF document text
- https://yellowstonewildlife.com/sokixareduxe.pdfIn PDF document text
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/b3ae02fba9f71de3f912c3141efc9416/57094262846.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e15405de8---87053399878.pdfIn PDF document text
- http://timebank.ru/sites/default/files/photos/pagefile/ximuxozarumumig.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=who+was+what+goes+around+comes+around+aboutPDF 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_off0000f2b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010ac6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC6 | 30652 bytes |
SHA-256: 03a4d5fe3f532bfc596b272ad8472d36d7dace09626cc634e0872950368c1628 |
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font_02_sfnt_off000148e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148E8 | 11000 bytes |
SHA-256: 597c3ea1ddba78a2b7703d8909d7a51a052f882988a7aa5da97b9b10ca826fb2 |
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