MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to various domains, suggesting it functions as a link farm. These links likely lead to phishing pages or further malware downloads, consistent with a spearphishing attachment delivery method.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://wastran.ru/uplcv?utm_term=to+great+affect PDF link annotation
- http://sva-jeanroze.com/xmedia/file/ninexewijabapivu.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152a84c29001---90252571252.pdfIn PDF document text
- http://aotmoo.com/uploadfile/files/20210926_092135.pdfIn PDF document text
- https://rizecanreklam.com/images/file/93635391501.pdfIn PDF document text
- https://avukat.kocgrafik.net/upload/files/43179965997.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1614778ef26d7a---89250670951.pdfIn PDF document text
- http://print-resource.co.uk/ckfinder/userfiles/files/zelazo.pdfIn PDF document text
- https://xn--fiqa735be48e.com/upload/files/79984513389.pdfIn PDF document text
- http://fabiocaronearchitetto.com/userfiles/files/67146038458.pdfIn PDF document text
- https://er-cardiff.com/eurostyl/photos/file/25381972845.pdfIn PDF document text
- http://gzbaosui.com/uploadfile/files/labijud.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/1c045692c2272afb1b1e20880127d186/getegememowa.pdfIn PDF document text
- http://wizclub.net/upload/userfiles/file/lomoxajunijowitox.pdfIn PDF document text
- http://zezoalza.com/ckupload/files/85505886119.pdfIn PDF document text
- https://karpzbeldowa.pl/uploads/userfiles/files/gubogogupotovadapububar.pdfIn PDF document text
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/41774642497.pdfIn PDF document text
- https://bczenekar.hu/files/file/6294063390.pdfIn PDF document text
- https://paron-rebondir.com/uploads/files/nulofisejorodi.pdfIn PDF document text
- http://saipanbooking.com/FileData/ckfinder/files/20210905_9CC28E2421550E30.pdfIn PDF document text
- http://sicompk.com/survey/userfiles/files/dasanelipejenela.pdfIn PDF document text
- http://ministryofrum.com/memlogos/file/jijowinopugutapet.pdfIn PDF document text
- http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/wozomevozadugor.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_off0000ad24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c53b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC53B | 10064 bytes |
SHA-256: ba9d5966d05ffeaaad7351781280703ea52272fa7bee16084409e2c8cc16a4a2 |
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font_02_sfnt_off0000dbcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBCB | 15024 bytes |
SHA-256: a5af25a16163bd135cc452672b8c3c33540ae30f286aa755118769eba5adabd0 |
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