MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users. The primary purpose appears to be directing users to potentially malicious content hosted on these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://queure.ru/uplcv?utm_term=practice+worksheet+graphing+rational+functions+using+transformations+answer+key PDF link annotation
- http://ever0036.com/assets/uploads/ckedit/files/20210602093041.pdfIn PDF document text
- http://em-mould.com/ckfinder/userfiles/files/60601087285.pdfIn PDF document text
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160732aba34684---xenuzesokomipejom.pdfIn PDF document text
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/b9l75ltqdvia82umjvvt2egp6r/zevubades.pdfIn PDF document text
- http://mikailang.net/userfiles/file/20210616081744_2125321001.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1610042f224cc7---vafapaxop.pdfIn PDF document text
- https://kisikana.hr/userfiles/file/sigerikiziwadiluren.pdfIn PDF document text
- https://pypconsultores.mx/userfiles/file/xumokigenalapurula.pdfIn PDF document text
- http://fabiocaronearchitetto.com/userfiles/files/fifonojux.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c973a9aea2b---bozekafiturudokumemomi.pdfIn PDF document text
- https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/12481054201.pdfIn PDF document text
- http://www.logomarcanet.com/userfiles/file/13767455254.pdfIn PDF document text
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c5790315286---jawoxadufadewizofan.pdfIn PDF document text
- http://jp-cable.com/d/files/vusasukalaw.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/3r7b4tu7gdm65q0clp832s7c1f/48298680294.pdfIn PDF document text
- http://jfac.kr/ckfinder/userfiles/files/pudejedudanodarufibudivol.pdfIn PDF document text
- http://ntvietnga.com/upload/files/71940264386.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b16ecc70067---gemagokawaraxota.pdfIn PDF document text
- http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/62524890840.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_off0000d35b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD35B | 15884 bytes |
SHA-256: 39178ec7d4673d70703008f6134a75ee0ffe42a04c6565f9966097f194795d54 |
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font_01_sfnt_off0000fc52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC52 | 11320 bytes |
SHA-256: 7b2b6d19422181be8652c1193a9cfa5f8414f2ce385dccc10a43d37fc3f32554 |
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font_02_sfnt_off000116e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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