MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external URIs, many of which point to compromised WordPress upload directories or disposable hosting. The ML classifier strongly indicated maliciousness, and the structure suggests a link farm designed to redirect users to potentially malicious sites. No scripts were extracted, limiting the ability to determine specific execution methods beyond the initial document access.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://cukiernia.eu/upload/files/3801387350.pdf In PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6a945f3f7d---tafez.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/1d5c39121aa0a6621c8b6504a49c1847/65596301458.pdfIn PDF document text
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/33381eaab885673cd231b3767265eb92/83157588546.pdfIn PDF document text
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/b71de4694fa41ac08296431e3f6c6b67/lufesowopul.pdfIn PDF document text
- https://west-holding.com/userfiles/file/lozuvibodexemogis.pdfIn PDF document text
- https://laflammerouge.ch/userfiles/files/12444551047.pdfIn PDF document text
- http://albertopizzetti.it/userfiles/files/4489972082.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0d6e046c9cae8bdb8ca87b1ac7e1eebc/tibuvovekafar.pdfIn PDF document text
- http://europavloeren.nl/siteimages/file/reviravilubapusononilid.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cace8dd1a---43248611993.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070583159ae7---47079620406.pdfIn PDF document text
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/16087d7ffac5f6---tamufosome.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/medawawogutigutetivup.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/ruvuxovolader.pdfIn PDF document text
- http://rwdwebwebdesign.com/img-aim/files/65306851811.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b405d97d41---xuvuzex.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be01af69ef8---1179677389.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/65025804970.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160701cc7c8e55---dejarelipum.pdfIn PDF document text
- http://cka-shiba.com/ckfinder/userfiles/files/lirosutewovaginuv.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089459c6c064---rubiriwisojuzedememoz.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16072330644309---68291369110.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021051809373154.pdfIn PDF document text
- https://nhachoxebus.com/upload/fck/file/50179600179.pdfIn PDF document text
- https://tmtteks.com/files/64772497981.pdfIn PDF document text
- https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/2e130714a6e7ccc5d6202f722520757e/99384838408.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=the+sorcerer%27s+apprentice+chess+bookPDF 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_off00010bc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC4 | 22192 bytes |
SHA-256: ad714882f60f2dfc6fe5a1871e24c877d2053d2e5d2bf0282f85dfd006e089d0 |
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font_01_sfnt_off000140a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140A3 | 10652 bytes |
SHA-256: 0327ee726df3fa2a6eef3c4118cac3c16aebb7a811743f03a27a97dfb151a439 |
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font_02_sfnt_off000158d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x158D7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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