MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded URLs, many of which point to potentially compromised WordPress sites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm structure, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' suggests these links are hosted on compromised upload directories. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://hndgyl.com/v15/Upload/file/2021961958483965.pdf In PDF document text
- https://albertoangel.sinecsas.com/ckfinder/userfiles/files/zavizoloketazitirusili.pdfIn PDF document text
- http://yuanjen.com/ckfinder/userfiles/files/5789389343.pdfIn PDF document text
- https://dcoderesearch.com/uploads/14796623296.pdfIn PDF document text
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/ffa6e87020685bd66d9d7f95d81441b9/25625267342.pdfIn PDF document text
- https://rumusjitu.com/contents/files/rulin.pdfIn PDF document text
- https://foodexgida.com/uploads/files/62418346798.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/ef0ed0c0af6a27c1e4c71689301ea05c/39648453202.pdfIn PDF document text
- http://oticonshop.com/ckfinder/userfiles/files/53208751320.pdfIn PDF document text
- http://bburago.info/admin/fckeditor/userfiles/file/levuwi.pdfIn PDF document text
- http://csc0535.com/userfiles/file/20210911135556_8vensh.pdfIn PDF document text
- http://jatyn.cn/upfiles/202109/file/1631075039.pdfIn PDF document text
- http://gruaszarate.com/ckfinder/userfiles/files/pefujonadimego.pdfIn PDF document text
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130d39799a23---vowadop.pdfIn PDF document text
- http://fapannimario.it/userfiles/files/95388500444.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/t85k07ib15q17iggr2qrd59r74/supawelidajokaxawubuvop.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a70027e90f---dimigugukuferoretek.pdfIn PDF document text
- https://brakos.it/file/levezesotijolezolor.pdfIn PDF document text
- https://truongthanhco.vn/webroot/img/files/wexuxurifusolijevali.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16135b087a70f9---ratesivitavilizaxubu.pdfIn PDF document text
- http://businessvaluationapp.com/fck_files/file/3879709651.pdfIn PDF document text
- http://isystemlab.com/admin/ckfinder/userfiles/files/66478928416.pdfIn PDF document text
- http://china-baby-clothes.com/d/files/78950282544.pdfIn PDF document text
- https://doina.md/fckeditorfiles/file/gurawoj.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=vidmate+ki+linkPDF 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_off0000f654.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF654 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E6B | 10084 bytes |
SHA-256: 4215fa9e2cf61d2ba23308dd882dfac74124404a518e1d2a74fdbc0f6ce470ce |
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font_02_sfnt_off000124ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124CA | 17916 bytes |
SHA-256: 417ab9723b1f5dda9cd659ea67d97099d47baa69b9e012b60e7626dcf7548080 |
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