MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to disposable domains or compromised CMS upload directories, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://oniceh.ru/uplcv?utm_term=cbse+7th+class+science+book+pdf PDF link annotation
- http://czechdidgeridoo.com/admin/upload/file/pefatuji.pdfIn PDF document text
- http://appartenvue.net/appart/upload/images/lugetevagideresiz.pdfIn PDF document text
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e7795c59d---savelipufajoxapolo.pdfIn PDF document text
- http://bebaldebaran.eu/userfiles/files/fakivusemezajezek.pdfIn PDF document text
- https://maydangson.com/vietkiendo/upload/file/8185083141.pdfIn PDF document text
- http://aaaexpressac.com/userfiles/file/48189247316.pdfIn PDF document text
- http://lmalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gigenel.pdfIn PDF document text
- https://sambelteri.com/contents/files/41500475172.pdfIn PDF document text
- https://regaluxiluminacion.com/uploads/assets/file/ratodo.pdfIn PDF document text
- https://fontaine-eva.fr/userfiles/files/pulabodedivizizapige.pdfIn PDF document text
- http://funkyspa.net/ckfinder/userfiles/files/zerokijimoxedukukuluwiga.pdfIn PDF document text
- https://textosolutionslinguistiques.ca/upload/editor/file/22139396541.pdfIn PDF document text
- https://hkpefa.org/editor_upload/file/xisalufowalazalule.pdfIn PDF document text
- http://evpltravel.com/xv_image/file/rurosidoduwokogemudek.pdfIn PDF document text
- https://melz-feu.ru/upload/rebiwefekezunovuwameviwik.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7a4469202---jazukuzajolijofovulebew.pdfIn PDF document text
- http://varadimasszazs.hu/uploads/files/22690298185.pdfIn PDF document text
- http://adas-muko.pl/photo/file/78666630222.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1ec793cb2---43520469877.pdfIn PDF document text
- http://formel1vermietung.de/userfiles/file/durezuvetowobidatonabolup.pdfIn PDF document text
- http://www.rpv-drachten.nl/files/file/92481893728.pdfIn PDF document text
- https://eastmanllc.net/ckfinder/userfiles/files/86134215393.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_off0000c379.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC379 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB90 | 10928 bytes |
SHA-256: 62abc5a59fd68440cfc29cc69dce5805966b98257238bac4e7d504cf41b0f790 |
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font_02_sfnt_off0000f4b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B1 | 17032 bytes |
SHA-256: d7f97d7ccdd7dfdc13c4de2d31094d0d4438437fc24d7832122556e6a9324842 |
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