MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains numerous URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, likely to distribute phishing content or malware. No scripts were extracted, but the overall structure and URL distribution strongly suggest a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://inwebjor.ru/uplcv?utm_term=sets+and+venn+diagrams+worksheets+with+answers+pdf PDF link annotation
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/2f928827fd83fad126aceb9c057a338c/8532572273.pdfIn PDF document text
- http://vipnjl.com/userfiles/files/nuxopuwonujabufoxugumoj.pdfIn PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/100cb698dd7b8277eb5876a445288761/43794687805.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/2fae118ffb29e343ad82434a4f4108d7/8068954650.pdfIn PDF document text
- http://vinacafe-dalat.com/Images_upload/files/3348507672.pdfIn PDF document text
- https://thietbivesinhanhhuy.com/asset/files/denejoje.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608a3087a0e7a---bilasa.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/u64in61rkchmjaqumqmb7rrjh7/tubaxezire.pdfIn PDF document text
- http://applexin.com/ttpsea/files/file/nidezofe.pdfIn PDF document text
- http://blueleaves.ru/userfiles/file/bitegowiv.pdfIn PDF document text
- https://windsbs.biz/files/file/6363138653.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d63024f2124---11910923557.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/c420f6250fc79c758c3a19549dd5ac81/loxisuxegovevoxipamuzu.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/a422788119028c3c650f0a285d9cbf82/10541706668.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16079e53c6a3b2---92001792140.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f11cbd546---18697124082.pdfIn PDF document text
- http://goergenpainting.com/clients/0/0d/0d1038892961fdbf96b6a8e7e8daca8f/File/dogodebebanopinukijesupa.pdfIn PDF document text
- https://www.upperhousedev7.com/ckfinder/userfiles/files/84414431987.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/ec4ba162ebe547437334ec2b12744ddc/xibomazogewogukegokat.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160c6c7cece5a2---7094363969.pdfIn PDF document text
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/a170e4ebc0d9d6ccebb4e6269c8fbacc/kotugonabudipi.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a16afc63701---relejadegidifufararazil.pdfIn PDF document text
- http://mamnonlittlesun.com/upload/files/42311643379.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_off0000fccf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCCF | 17656 bytes |
SHA-256: 4b26a8fdded07e03c0ac9c5347d89f33e41d2de4a10ca2e24ea584cc0656dee4 |
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font_01_sfnt_off00012b25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B25 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001433c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1433C | 11220 bytes |
SHA-256: 90fd6a3c1a857c8f4bd06431c25d2da88a7b6e77435d194f9f9e017cb1491dfc |
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