MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF containing embedded JavaScript and a high-risk heuristic firing for a random URL link. This link points to a PDF hosted on disposable infrastructure, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to exploit vulnerabilities or trick the user into downloading a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://worldtradezone.com/userfiles/file/21062098810.pdf In PDF document text
- http://twfbs.com/ckfinder/userfiles/files/susejemanidodojojimuzisu.pdfIn PDF document text
- https://castilloexterior.net/ckfinder/userfiles/files/65915450352.pdfIn PDF document text
- http://fujavietnam.com/images/Download/32188903088.pdfIn PDF document text
- https://sesconbs.org.br/ckfinder/userfiles/files/72935147902.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/2649dd2ae050221d407a5e35f6eb33d9/dositisegetijukade.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/wexejurodopoxutewadujenij.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/28288000781.pdfIn PDF document text
- https://atrax.eu/userfiles/file/mazobifumipi.pdfIn PDF document text
- http://cerezolorente.com/files/cerezolorente/_repo/file/nipeluwasutedevokevanub.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/befejo.pdfIn PDF document text
- http://pathtojanna.com/userfiles/files/kawifuxeresejuxesusu.pdfIn PDF document text
- http://vilocom.net/webroot/img/files/53577132666.pdfIn PDF document text
- https://bdprescription.com/ci/userfiles/files/ragalotuj.pdfIn PDF document text
- https://bibonatura.com/ckfinder/userfiles/files/12832400553.pdfIn PDF document text
- https://mgs-on-track.com/uploads/misc/files/bekunurowo.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141033c10b07---57126519750.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/24693630653.pdfIn PDF document text
- http://fulns.com/uploadfile/fckedit/file/1631557683hAgu.pdfIn PDF document text
- http://charontrade.hu/data/file/8939875944.pdfIn PDF document text
- http://maezawa-jidousha.com/js/upload/files/43523905330.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109061307166531.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=nba+live+hackPDF link annotation
- 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_off0000e0e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f8fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8FC | 10012 bytes |
SHA-256: d8a28eb01481b3551a0a1d9ba6d6a42fc1064958a4362bdcf8e798722a8b3ec6 |
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font_02_sfnt_off00010f5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F5F | 17664 bytes |
SHA-256: c5eee5a6362a6edb7a3f6445ab629af8761c0389d176cc6cdb6cdc7bb4a2481c |
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