MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links strongly indicates a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://pistant.ru/uplcv?utm_term=sat+writing+test+pdf PDF link annotation
- https://crownprolaw.cn/userfiles/Proj_Name/files/47542552962.pdfIn PDF document text
- http://lsbwg.com/ckfinder/userfiles/files/20210919/1705453619.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d3fb11e187---lezefalumodawaduguj.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161497f0c581a4---zutigisuzitali.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/xixumowobisuvokiv.pdfIn PDF document text
- http://www.masozilina.sk/ckfinder/userfiles/files/likugepedugupulol.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/161459721b779c---27476129306.pdfIn PDF document text
- https://tckontrola.hr/files/mujirefef.pdfIn PDF document text
- https://bomando.bomsolar.com/uploadfiles/files/nebotapupuma.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f17aef371---85761163738.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132d1d4e0ad4---rosis.pdfIn PDF document text
- http://harlit.com/upfiles/file/pojivuges.pdfIn PDF document text
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/ravepolijuwugulureza.pdfIn PDF document text
- http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/birosukiboginafovur.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/b6775755d441d9c30d96a5a3d79a3cf9/34463975746.pdfIn PDF document text
- http://zulassungsservice4you.de/bilder/file/95514099124.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/42690395500.pdfIn PDF document text
- http://oldmotorsclub.com/files/file/48154346892.pdfIn PDF document text
- http://papienbanana.com/user_file/file/xivuto.pdfIn PDF document text
- http://studio-rivetti.it/userfiles/files/28248305957.pdfIn PDF document text
- http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/bovojejizir.pdfIn PDF document text
- http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/91499691507.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_off0000b297.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB297 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000caa9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAA9 | 17432 bytes |
SHA-256: 817b86b8497161da77f7b76d7b5c7a74e2e62bd5a88e8b6cbf463f27346967a7 |
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font_02_sfnt_off0000f6e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E1 | 10668 bytes |
SHA-256: b94f853cfa8002964bcc6d36c1222c746ebac9c599740205644b0663b901671a |
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