MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and multiple external links, flagged by ML classifiers and ClamAV as malicious. Critical heuristics indicate it's a lure for recovery secrets or private keys, and also suggests a password-protected archive handoff. The embedded JavaScript likely facilitates the execution of a malicious payload or redirects the user to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 8
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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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Recovery secret / private key request critical SE_SECRET_RECOVERY_LUREDocument requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://bywuf.org/upload/editor/files/mepebagod.pdf In PDF document text
- http://specialcats.nl/media/files/22863018803.pdfIn PDF document text
- http://sciattella.net/images/file/xavat.pdfIn PDF document text
- http://hoanggiaphatstone.com/upload/files/xijogov.pdfIn PDF document text
- http://cortocircuito.trialpanel.com/images/Upload/files/34914005314.pdfIn PDF document text
- http://dakmoto.cz/obrazky/file/2831309892.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-8/20210908001347203008.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/fabozakasesofomuba.pdfIn PDF document text
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/43853247452.pdfIn PDF document text
- http://thewellmanteam.com/userfiles/files/xatexeluxoxelodozebezi.pdfIn PDF document text
- https://nutricount.cz/UserFiles/File/5639671437.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/bivibido.pdfIn PDF document text
- https://mercerapparelss.com/userfiles/files/67005597572.pdfIn PDF document text
- http://lachambredechos.com/userfiles/file/73365882270.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140bddbf15b1---witeveb.pdfIn PDF document text
- https://limsurempat.com/contents/files/50445057083.pdfIn PDF document text
- https://get-insurance.in/ckfinder/userfiles/files/97052545110.pdfIn PDF document text
- http://musclecar-taps.com/js/upload/files/mavuvewipabozikivad.pdfIn PDF document text
- http://xsteelstock.com/d/files/gewalofa.pdfIn PDF document text
- https://langumeistras.lt/i/File/74278104029.pdfIn PDF document text
- http://kavtas.com/images_upload/files/6823411168.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///widuje.pdfIn PDF document text
- http://greenlivinggarden.com/htdocs/UserFiles/file/34073106205.pdfIn PDF document text
- http://jtylek.pl/Upload/file/fixedujatizefinanug.pdfIn PDF document text
- https://gifarlcm.com/upfiles/editor/files/54312918893.pdfIn PDF document text
- http://lishasurgical.in/ckeditor/ckfinder/userfiles/files/velevurasanogezisujiger.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=digitally+sign+pdf+linuxPDF 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_off0000dd23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD23 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f53a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF53A | 10640 bytes |
SHA-256: ef6692b5d0ee34e067a65ea504829578f316bd3c25224040a7482b73bc0a64a0 |
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font_02_sfnt_off00010d83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D83 | 17936 bytes |
SHA-256: bbed7e5ec09b7f0137fc4dfe6ced6478e8a285974b03eb7368e54b31ba5c65f7 |
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