MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier strongly indicates maliciousness, supported by heuristics identifying the PDF as a link farm pointing to compromised WordPress sites. The document's structure and embedded URLs suggest an attempt to lure users to potentially malicious or SEO-manipulated content. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/d99b016371294f6434b0e9946ce3dc91/josubowaboniludibuwatuvub.pdf In PDF document text
- https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/7eb8296c05cfb2099922fc8d5d1004e4/bovimibij.pdfIn PDF document text
- http://kamnitikamini.si/upload/files/6128199422.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/dbf101182ae4f6aa6984ae94057ede21/suzesizumorim.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a19430e2eea---jorosamoxup.pdfIn PDF document text
- http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/luzetep.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/1daf7b4d0223414fcd8ce874571e4544/buwoxebu.pdfIn PDF document text
- https://camping-du-lac-dijon.com/userfiles/fichiers/sopewipokil.pdfIn PDF document text
- http://indemo.pl/Image/files/xevozulowiwafibonirodin.pdfIn PDF document text
- http://zaun-produzent.de/userfiles/file/93326838731.pdfIn PDF document text
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/gbn5nrnt4374ccnakuugtpbmn3/28974479871.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/54932889525.pdfIn PDF document text
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/add3831ea0f2f3370024a528e2d6dd82/62488390608.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607649d7b8f53---12493392251.pdfIn PDF document text
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a082e9bd661---vokirixuwifizixeso.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afcc40599a5---68529905357.pdfIn PDF document text
- https://ruiguoex.com/upfile/files/2021/06/02/nuguvumi.pdfIn PDF document text
- https://corpusbg.com/files/fck/file/muworixusujowisani.pdfIn PDF document text
- http://rlponder.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/97719211382.pdfIn PDF document text
- http://volamtuyetthe.com/userfiles/file/2643752425.pdfIn PDF document text
- https://loctra.net/userfiles/file/58778943265.pdfIn PDF document text
- https://eminesenlikoglu.org/resimler/files/gixidorivixowod.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=donna+the+goldfinchPDF 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_off00010baa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BAA | 10488 bytes |
SHA-256: cef0478d1032282e68d8907d1cb25611f7109f196ae581f85b65133b092054fe |
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font_01_sfnt_off00012328.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12328 | 18116 bytes |
SHA-256: db30b665eef5aa9df9468c9cf261b508e3b4c69072330d54d27049ecb98402d2 |
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font_02_sfnt_off00015222.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15222 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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