MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It functions as a link farm, directing users to numerous domains, many of which appear to be disposable, with the intent of facilitating malware downloads. The presence of a 'download button' heuristic further supports this malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://krisoc.ru/uplcv?utm_term=temple+game+temple+run+game PDF link annotation
- http://zhymwz.com/upfile/file/76925876348.pdfIn PDF document text
- https://insolite.lu/img/userfiles/files/54973516044.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161351e33eb6ef---19555281062.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613923ddb1a9d---90757819548.pdfIn PDF document text
- https://www.mediawerf.nl/bundles/store24backoffice/ckfinder/userfiles/files/36672362654.pdfIn PDF document text
- https://bursakaynak.net/userfiles/file/9222235960.pdfIn PDF document text
- http://thegoshow.net/userfiles/file/limofon.pdfIn PDF document text
- http://learningkey.org/userfiles/guwafabotatuxu.pdfIn PDF document text
- http://vswet.ru/f/8156368589.pdfIn PDF document text
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/5559856733.pdfIn PDF document text
- http://dryoucosmeceutical.com/userfiles/files/welujuzamifebulofiwu.pdfIn PDF document text
- https://viettincapital.vn/upload/files/38736925445.pdfIn PDF document text
- http://billedbutikken.dk/articlefiles/file/47702474831.pdfIn PDF document text
- http://formel1vermietung.de/userfiles/file/1098233584.pdfIn PDF document text
- http://kamakuralosgatos.com/uploads/files/54183216127.pdfIn PDF document text
- http://montpellier-business-plan.eu/mbp/upload/images/images/upload/ckfinder/bibina.pdfIn PDF document text
- https://o2opr.co/userfiles/files/30482422134.pdfIn PDF document text
- https://konzolstudio.ro/uploaded_files/file/lovam.pdfIn PDF document text
- http://agama-rc.com/upload/files/solunedef.pdfIn PDF document text
- https://jancsoalapitvany.hu/ckfinder/userfiles/files/69443862300.pdfIn PDF document text
- https://deitratech.com/userfiles/file/xudeluwakake.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_off0000d75b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD75B | 18356 bytes |
SHA-256: 5c722c199d1033c53e3dd9174cd4ad1ab36452cb18562f223ef3d422e189b687 |
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font_01_sfnt_off00010692.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10692 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ea9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EA9 | 10276 bytes |
SHA-256: 3e1e5e1817cc76d6d6b63ba70b4ce1ebc38b39a3b9f36b2f88425851c821ab5e |
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