MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF was flagged by a machine learning classifier and ClamAV as malicious, exhibiting characteristics of a phishing or trojan delivery mechanism. The presence of a 'Browser extension / update installation lure' heuristic strongly suggests a social engineering attempt to trick the user into downloading and installing a malicious payload. Numerous external URLs were found, indicating potential download sources or C2 communication.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://oniceh.ru/uplcv?utm_term=idm+not+showing+in+chrome PDF link annotation
- http://gzsjlt.cn/userfiles/file/92894101821.pdfIn PDF document text
- http://masan315.net/board/imagefile/file/fugudafeditawunesi.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/35733805336.pdfIn PDF document text
- http://romengo.com/ckfinder/userfiles/files/96785201444.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/kinerixemutatoxovixagozar.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16139b8368eb2e---65288313593.pdfIn PDF document text
- http://dalieuht.com/app/webroot/uploads/files/raxudano.pdfIn PDF document text
- https://prevodi-plovdiv.com/userfiles/file/66679153020.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/74141282180.pdfIn PDF document text
- https://simon-daulte.com/ckfinder/userfiles/files/saxanugudaw.pdfIn PDF document text
- https://www.milestonesmn.org/ckfinder/userfiles/files/38480154166.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/gujazapopodav.pdfIn PDF document text
- http://halongwave.com/userfiles/file/zuvotuv.pdfIn PDF document text
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/7qbj63vdhc617i9p0j5uutm0d4/83125681614.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/totabolawetolagaga.pdfIn PDF document text
- https://beautydiction.com/ckfinder/userfiles/files/5426585098.pdfIn PDF document text
- https://www.area-tlc.com/public/ckfinder/userfiles/files/73900968909.pdfIn PDF document text
- http://steakclubhn.com/campannas/file/vovuzoluxomimomasazapen.pdfIn PDF document text
- https://elsadaulte.com/ckfinder/userfiles/files/72769532199.pdfIn PDF document text
- http://dae-young.kr/upload/fckeditor/file/11606630719.pdfIn PDF document text
- http://gongotour.com/FileData/ckfinder/files/20210914_64D46B634601B5F2.pdfIn PDF document text
- https://shopexpert.com/app/webroot/files/userfiles/files/ferijejoruburuvepejofiz.pdfIn PDF document text
- http://qdjshg.com/files/file/lejavikis.pdfIn PDF document text
- http://agilesolutions.in/uploads/49647737782.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_off0000cbf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBF2 | 18224 bytes |
SHA-256: e1e733b6ab8d47961ba724c3ab8a7a1e2a6554bed3486280d10cfb2d2fc87e09 |
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font_01_sfnt_off0000fb64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB64 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001137b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1137B | 10648 bytes |
SHA-256: e12ab60967566dd8d72eebdd98633f2b610e0e32a776365d960dffe6b1556f83 |
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