MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document exhibits characteristics of a phishing lure, impersonating a cloud document sharing service to trick users into downloading a password-protected archive. Numerous external URLs are present, many pointing to compromised WordPress sites, suggesting a link farm designed to host or redirect to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to delivering a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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://catamma.ru/uplcv?utm_term=100+snes+roms+pack+download
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/92aaba5197fc82f8cecb4c0d69233556/pezafotozokedemigagagef.pdf
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1606f29a411dd2---41392182082.pdf
- http://dynamic1984.com/user_file/file/95960917029.pdf
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082227dc9d1d---zadoginaforowugux.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d5b2fe4fd73---21027474879.pdf
- http://paillasse.hu/userfiles/file/meritaredozejaxole.pdf
- http://kozelskadm.ru/files/uploads/files/rujip.pdf
- http://wasserentkalkung.at/ckfinder/userfiles/files/vipozavun.pdf
- http://www.dogwoodagility.nl/ckfinder/userfiles/files/bifud.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160731dbc1b03a---bonagav.pdf
- http://macap.nl/app/webroot/files/userfiles/files/koketepopubatokizujip.pdf
- http://lagunarent.lt/ckfinder/userfiles/files/tilemufuzasuwalogifun.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2659e940698da2c2ebfb544c82efd092/fuxanajo.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/d5e35768dcafc765b0808549c8f64150/vusawirosaw.pdf
- https://soudurelausiere.ca/upload/editor/file/77247832211.pdf
- http://jhsclassof63.com/clients/c/c8/c8cc7cee7579ddcd469b669c0eb172d8/File/dogegamenexujis.pdf
- https://ietc-oman.com/userfiles/files/4670076192.pdf
- http://sanzmendia.com/userfiles/files/ralatekuzige.pdf
- http://agriturismolataggiasca.eu/userfiles/files/polabetujezimejul.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16098c68b37267---sedasafitasur.pdf
- http://primaneighbors.com/userimages/laxefenibepidum.pdf
- https://www.ewdel.cz/ckfinder/userfiles/files/dilifijazi.pdf
- https://dalilak1.com/userfiles/file/3941751201.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/3b709e48b200cf6331599ffae31d3358/tinufofekoxafura.pdf
- http://paoladebenedetti.eu/userfiles/files/38164771037.pdf
- http://stroi-sistema.ru/img/gavosinuxozawunaxevazi.pdf
- http://blltly.com/1m48ld
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f0bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BB | 16792 bytes |
font_01_sfnt_off000108cd.bine63286dbc06171f516e1a2b6e3635ce1d6681424e80a2466e900a5bec995741e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108CD | 17092 bytes |
font_02_sfnt_off00013530.bin0643edfe251e773503e4a6ba590af5e400f5956012693e40b23e352dcde9f5c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13530 | 10740 bytes |
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