MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://k-sta.kr/FileData/ckfinder/files/20210908_875FB6193378DE40.pdf In PDF document text
- https://aristi-trap.com/upload/users/files/44298679752.pdfIn PDF document text
- https://lolakarimova.uz/ckfinder/userfiles/files/jonovipepesogixipa.pdfIn PDF document text
- http://szerecsengyogyszertar.hu/editor_up/gizelexiwotop.pdfIn PDF document text
- https://ccichn.vn/data/upload/file/xokitisedekoxoteguga.pdfIn PDF document text
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/66280cc8d6ead3abb0b916653ad0c88e/pibavopabozinekitemet.pdfIn PDF document text
- http://mundori.com/js/ckfinder/userfiles/files/49778974179.pdfIn PDF document text
- http://massarentearchitettura.com/userfiles/files/7160200846.pdfIn PDF document text
- https://weborder.cloud/userfiles/file///sirowumegodunevijezir.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/2524214339.pdfIn PDF document text
- http://fairfresh.net/assets/admin/ckeditorimage/files/dejatulojaxoxo.pdfIn PDF document text
- https://ipic.vn/userfiles/file/xutalej.pdfIn PDF document text
- http://aleshashop.net/uploaded_files/userfiles/files/toxetevufolajebemove.pdfIn PDF document text
- http://watchimport.eu/userfiles/file/fefumotevam.pdfIn PDF document text
- http://tgtech-auto.com/userfiles/file/26514942761.pdfIn PDF document text
- http://rivebistro.net/ckfinder/userfiles/files/13297742105.pdfIn PDF document text
- http://toitureetfacade.fr/data/Files/59994900658.pdfIn PDF document text
- http://pujcovnanaradi-tvarozna.cz/userfiles/files/14063929100.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/161334a2d2e030---50598864494.pdfIn PDF document text
- http://headrepublic.pl/images/files/8886343092.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/161358e54d5b37---wunavoxodejuvabugutagol.pdfIn PDF document text
- https://sunpower.lv/ckfinder/userfiles/files/jarewo.pdfIn PDF document text
- https://ip-kamera-rendszer.hu/ckfinder/userfiles/files/28277902043.pdfIn PDF document text
- http://dreamsurgerycn.com/ckupload/files/retinobavafug.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=como+tener+mas+espacio+en+mi+androidPDF 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_off0000d588.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD588 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED9F | 10660 bytes |
SHA-256: 047b2344a86036268ce96b562c7c6201295fd553e7283fceb96837427d837f0b |
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font_02_sfnt_off00010607.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10607 | 17984 bytes |
SHA-256: 5162d9c749d4df0d053b8580c8e627a6a71051423d1d64e66d907a8705c4cc5f |
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