MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or malware distribution lure.
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://oniceh.ru/uplcv?utm_term=the+death+of+ivan+ilyich+pevear+and+volokhonsky+pdf PDF link annotation
- http://allmedicus.com/userfiles/file/30087781278.pdfIn PDF document text
- http://hanauhrova.cz/files/45511403630.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4a402cbc9---42124804213.pdfIn PDF document text
- http://dhleisure.com/ckupload/files/88181413490.pdfIn PDF document text
- https://idd.no/ckfinder/userfiles/files/jikatixazorugak.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/chtg0ldnajlr44c9m1si1g8a2d/vimukedalezoxaxopuwesofe.pdfIn PDF document text
- http://taihegas.com/filespath/files/20210902100813.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021091719263157514.pdfIn PDF document text
- http://eis-pieschel.de/UserFiles/File/budoxofapif.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/eb8991bbd9969a7e602edacd95568ec9/84455774826.pdfIn PDF document text
- http://msslink.ru/userfiles/files/54010325574.pdfIn PDF document text
- http://aallergy.friend-match.com/upload/files/52797902482.pdfIn PDF document text
- https://gamedunyasi.com/calisma2/files/uploads/43284844741.pdfIn PDF document text
- http://rowadhr.com/app/webroot/upload/files/jijurow.pdfIn PDF document text
- http://xn--12cf1djdb6cbcafdbu1f1cudgcc8am4wf7htgd9de.com/ckfinder/images/files/98801436709.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16138c2d3143fd---83915574752.pdfIn PDF document text
- http://arenabilardo.com/data/_files/duzetowobagimuwikezidil.pdfIn PDF document text
- http://guitarenko.fr/img/files/40044791497.pdfIn PDF document text
- https://linardi.ru/files/file/97026657980.pdfIn PDF document text
- http://neoneophytou.com/ckfinder/userfiles/files/66364034176.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/o40fm0bb9tu3i7j3ppnl2eo3p2/50140996251.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_off0000b7dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7DD | 16828 bytes |
SHA-256: 4404674c537fa4b5f2d97297e30f5bdae1de62afb7a20a81d3fea5009017b628 |
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font_01_sfnt_off0000e31c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE31C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fb33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB33 | 10952 bytes |
SHA-256: 250072d902fbd2a9434f5ff443094a7f32f01df110b2ff83bf50ae113cdc5303 |
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