MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress upload directories, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm attack pattern. No scripts were extracted, and the document body was unreadable, limiting further analysis of specific payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 5
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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://dichvuketoanvn.org/uploads/files/4094097407.pdf In PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef1ffce5d7---3578816065.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16087dba40747d---76843774280.pdfIn PDF document text
- https://people11people.gr/uploads/File/23439994501.pdfIn PDF document text
- http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/luxufiwanurebupowujevib.pdfIn PDF document text
- https://htddienstverlening.nl/userfiles/file/vedogakotifudugise.pdfIn PDF document text
- http://candybeauty.vn/upload/files/26775856856.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/3oadhgqbnlm2rh6d5t0v1fcb2j/9271080687.pdfIn PDF document text
- http://softwarefactory.nl/images/file/fijalopujulu.pdfIn PDF document text
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/45475893087.pdfIn PDF document text
- http://englishplanet.info/ckfinder/userfiles/files/tolekupowis.pdfIn PDF document text
- https://steklo-shik.ru/userfiles/file/72163414908.pdfIn PDF document text
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/6a34517d7e4d79d34da75517c41cbb04/40679233229.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aadf3143631---dujivut.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/cad9mdlqnqks6vkuf4bs9u2c3a/55728697025.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16090a2389e256---8937072937.pdfIn PDF document text
- https://bodymart.in/ckfinder/userfiles/files/24205256257.pdfIn PDF document text
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/63ce8c30b1cdb8573d8c6a8dce3a5319/62675842886.pdfIn PDF document text
- https://cortopolis.ar/userfiles/file/36869890254.pdfIn PDF document text
- http://suachuabaoduongmaynenkhi.com/img_quanganh/files/80438695988.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/folukimi.pdfIn PDF document text
- http://em-mould.com/ckfinder/userfiles/files/34997484271.pdfIn PDF document text
- https://bodegoncriollo.com/userfiles/file/guvilurojituterew.pdfIn PDF document text
- http://starrsgazette.com/admin/images/file/pavatijinigukepamuvonidej.pdfIn PDF document text
- https://apinero.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f7368357b---53567424314.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=descriptive+adjectives+worksheet+grade+6PDF 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_off0000d141.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD141 | 15932 bytes |
SHA-256: a23505b7a55f3375f4a08d97e1d979015e402560860d66000e1795a8890d0e89 |
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font_01_sfnt_off0000fa59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA59 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011270.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11270 | 11188 bytes |
SHA-256: 86a418c56b18dec65a010ddaa2db08aefa4a8b86c58996b90fad10cfe58bc881 |
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