MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm or SEO poisoning attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple external URIs and a link farm heuristic further supports this assessment. No scripts were extracted, but the primary attack pattern appears to be directing users to potentially malicious external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://sbsedupatti.com/sbsedupatti/userfiles/file/gavukudeduvuxapaben.pdf In PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/i3d5eteac3pnfp32jmmtqg3j2s/gatumezarez.pdfIn PDF document text
- https://vresponse.net/userfiles/file/2903623863.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1615378892c02a---10798700771.pdfIn PDF document text
- http://saconsultancy.com/userfiles/file/pilemi.pdfIn PDF document text
- https://tckontrola.zagi.hr/files/wugenuzofifufajaso.pdfIn PDF document text
- http://pxmonastery.org/CKEdit/upload/files/mobawewimedidoxalovisu.pdfIn PDF document text
- https://kudusde.org/resimler/files/puwagukep.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/jojajewibamiwired.pdfIn PDF document text
- https://ibexquimica.com.br/ckfinder/userfiles/files/xepumabakefuzizet.pdfIn PDF document text
- http://marktoby.com/akram/know_news/admin/userfiles/file/60112663237.pdfIn PDF document text
- http://auburn-properties.com/userfiles/files/notabevizuresu.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/1bbeb1b1e517ea6f4449b779b25e0288/76501125120.pdfIn PDF document text
- https://krantiservice.com/ckfinder/userfiles/files/55377491387.pdfIn PDF document text
- http://imaginove.eu/data/Files/jovusalovazot.pdfIn PDF document text
- http://royalleasingny.com/admin/images/file/26166649687.pdfIn PDF document text
- http://micruts.org/userfiles/file/metukigoxegava.pdfIn PDF document text
- http://abwingssuffolk2.com/uploads/files/pufelinipowo.pdfIn PDF document text
- http://precedent.by/_newsite/images_from_html_editor/file/jovejidok.pdfIn PDF document text
- http://eiak.org/upload/editor/files/92978923430.pdfIn PDF document text
- http://www.hermosabeachbungalows.com/userfiles/files/fuwujifubagalakamegoneg.pdfIn PDF document text
- http://interel-rus.ru/test/sites/default/files/file/95784970396.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=two+coins+are+tossed+simultaneously+500+timesPDF 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_off0000b767.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB767 | 17508 bytes |
SHA-256: f4f5e0f4fdd213cefe768be3897476ed0f0fe0bb726ca2474b3905db1d716d7d |
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font_01_sfnt_off0000e506.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE506 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_02_sfnt_off0000fd1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD1D | 11052 bytes |
SHA-256: 185d2ab9c1a0074c44fc372acd81e627063c9be09d9a6357690c08c9aa64c411 |
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