MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The presence of embedded JavaScript and a high number of external URIs, many pointing to PDF files on potentially disposable domains, strongly indicates a malicious intent. The ML classifier and ClamAV detection further support this, flagging the file as malicious, likely for phishing or malware delivery. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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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 http://thebookmarkcafe.com/uploads/files/sujafuxaxusojupiguz.pdf In PDF document text
- http://embeddedhr.com/ckfinder/userfiles/files/vuzokemuve.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/fabdf7cd80581a8f057af47da805fbf0/25600649855.pdfIn PDF document text
- http://jeykrishnaclub.com/images/file/sizukepimozupize.pdfIn PDF document text
- https://ghadir-eng.com/userfiles/files/86337707064.pdfIn PDF document text
- http://yacpa.org/yacpafiles/file/46580327206.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/70055399410.pdfIn PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/xavat.pdfIn PDF document text
- http://tamtamphat.com/upload/files/noguturezezadoj.pdfIn PDF document text
- https://clinicamanila.com/ckfinder/userfiles/files/tanixejiguvasap.pdfIn PDF document text
- http://scuderia512.com/js/upload/files/dixazifizapuselux.pdfIn PDF document text
- http://immopolignano.lu/images/kawaworul.pdfIn PDF document text
- https://mokhalasati.com/userfiles/files/24509251825.pdfIn PDF document text
- http://olymp-kiev.com/temp/fckeditor/file/dobujomexabifimob.pdfIn PDF document text
- http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/10075347741.pdfIn PDF document text
- http://4seasonstours.in/userfiles/file/fenipeboxasadexufijixewu.pdfIn PDF document text
- https://hmanagement.net/userfiles/file/74737299064.pdfIn PDF document text
- https://rumusjitu.com/contents/files/gutabiwofabuxijosorabe.pdfIn PDF document text
- http://hibertek.com/image/files/20210909_004959.pdfIn PDF document text
- https://guruamardaspublicschool.com/userfiles/files/sivosab.pdfIn PDF document text
- http://pattarasawat.com/ckfinder/userfiles/files/11143742400.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/60d7dae286e7b6b0044a0a2429a9ecc7/59163051453.pdfIn PDF document text
- http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/53422516017.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=competitive+strategy+cost+leadershipPDF 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_off0001121a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1121A | 11068 bytes |
SHA-256: 0ea87aa073566a1522fc8b02354ad5cf41e51d575d1d4c2d090cd28d40884414 |
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font_01_sfnt_off00012bc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC0 | 19276 bytes |
SHA-256: 88087c4ed2e63ae59b91a9ee1e371e6563e15b45b0447682393ecabeedb96cb2 |
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font_02_sfnt_off00015dde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15DDE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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