MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=shanzhai+byung+chul+han+pdf PDF link annotation
- http://7166867.ru/ckfinder/userfiles/files/boxadej.pdfIn PDF document text
- http://vivatbacchus.hu/files/file/77632332133.pdfIn PDF document text
- http://prograsifkalip.com/files/loxuvuviripesiwekowifi.pdfIn PDF document text
- http://swapnakoodu.com/fck_uploads/file/xaluf.pdfIn PDF document text
- http://mentaplywood.com/images_upload/files/meniru.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/ribudurirukugib.pdfIn PDF document text
- https://leosservices.com/userfiles/file/4425053929.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133db429eb82---17395711521.pdfIn PDF document text
- https://apz-arte.com/ckfinder/userfiles/files/26971001560.pdfIn PDF document text
- http://nhadep30giay.com/uploads/image/files/puvepege.pdfIn PDF document text
- http://zgic.ru/!upload/files/kalumik.pdfIn PDF document text
- https://solucionaesp.com/ckfinder/userfiles/files/58239694699.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/wimob.pdfIn PDF document text
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/0b609c6a7a9e06f56f62912a34a60814/76923842286.pdfIn PDF document text
- http://veganogle.es/uploads/ckfinder/files/puxakowi.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613022f91deaf---73746564095.pdfIn PDF document text
- https://parlagame.com/calisma2/files/uploads/92208209268.pdfIn PDF document text
- http://sinproval.it/userfiles/files/61070548150.pdfIn PDF document text
- http://suarezbeltran.com/aym_images/files/pebadajelo.pdfIn PDF document text
- https://shivajigrihnirman.com/singhania/downloads/file/49037478159.pdfIn PDF document text
- https://olivierdaulte.com/ckfinder/userfiles/files/25526654459.pdfIn PDF document text
- https://blogsma.com/files/33232571904.pdfIn PDF document text
- http://alpinist.store/sribati/editor/uploadfiles/nawikidisorakarezido.pdfIn PDF document text
- http://yenidenyuzlendirme.com/ckfinder/userfiles/files/55994545093.pdfIn PDF document text
- 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_off0000bd8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD8A | 17156 bytes |
SHA-256: ace94cb97ec628dee71a2e2a9822abd29f1a36ac85b2f5a1a61ff4c03eb8e28c |
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font_01_sfnt_off0000e968.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE968 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001017f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1017F | 10768 bytes |
SHA-256: 00f58daa358203d8d4025b9f5cdf5bd46e3a50b9b8bd71940303678f7306fa0a |
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