MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document flagged by ClamAV as a phishing trojan. Heuristics indicate it uses a browser installation lure and provides password instructions for an archive, suggesting a social engineering attack to trick the user into downloading and executing a malicious payload. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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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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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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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://dimensioninteractive.com/WYSIWYGImage/file/20295314274.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bff22fdc05b---69415204774.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cc9ef8955b6---repofasu.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160757d2d1eae0---31550598985.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a13ad54d57---42116949906.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4374da4764---saxutofisuwar.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c254dd3e8e3---22693380565.pdf
- http://riversedgefm.com/files/file/39067467643.pdf
- http://bahtiyardishekimi.com/fckfiles/file/65137711769.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a6333f315---24402323531.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160be982d20ca4---97950388435.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b87c439d4df---15131695762.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/u54spjq1pg8j4db9sq6g1f5kul/tilebogulosazo.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b0e14ab13---59686103983.pdf
- http://china-engine.net/ckfinder/userfiles/files/58330022808.pdf
- http://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/jeritebefomazofi.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b416d7df1e5---vokexemulujebe.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089ba5e8325e---74989576390.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16085834672a0c---nosetefasabaze.pdf
- http://zwickerfoto.hu/_user/file/jinakezagesilepizepixavox.pdf
- http://castudio.eu/userfiles/files/27275820094.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/e7675ffeec1dcf1f04930348bbd36317/foxerenelofopuzefiju.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=android+update+automatically
- 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_off0000e50f.bin9b8b3a85745bd4d54987a4fcfb507508cb87eb835cd6b9ac2d1a3c4080edcf25 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE50F | 17132 bytes |
font_01_sfnt_off000111e2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111E2 | 16792 bytes |
font_02_sfnt_off000129f9.binb95da2ba8bc64909333de83265c6c891bd7731e5effc0b86638bdeb7af5aef60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129F9 | 10700 bytes |
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