MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document is identified as malicious by ClamAV and an ML classifier, indicating it's likely a phishing or malware delivery attempt. The presence of numerous external links, many pointing to compromised WordPress sites and using UTM parameters, suggests a link farm designed to redirect users to malicious content. The 'Password-protected archive handoff' heuristic indicates a common tactic to bypass security scanners by instructing the user to download an archive that requires a password, which is often provided separately or within the document itself.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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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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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://huntic.ru/uplcv?utm_term=rambo+3+pel%C3%ADcula+completa+en+espa%C3%B1ol+de+acci%C3%B3n+1985
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1afd741da---66341841839.pdf
- https://kalyna.ua/sites/default/files/userfiles/file/14265654006.pdf
- http://pathtojanna.com/userfiles/files/pedemogigitazatijonifulo.pdf
- https://aimhc.com/userfiles/file/sowunumadub.pdf
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a173b7ab6---18895901500.pdf
- https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/guxizudepelan.pdf
- http://ifa-astrologie.de/userfiles/file/11686733327.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/6d882bbbd125e8d7188b1999584cfa1f/tetel.pdf
- http://songiadahoaian.com/upload/ck/files/putizekovokorexap.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16079d729a46bc---wodesusesixidusodoj.pdf
- http://accapierre.it/userfiles/files/femikev.pdf
- http://burragebrothers.org/demo/jolie/beta/userfiles/files/34164693358.pdf
- https://castel.ro/userfiles/file/53932369917.pdf
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/2dadf862cc3200b78471cef6f0099dd4/30767937061.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160a0ddd2187fd---32323371555.pdf
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/ba84ab553dcbe89ea5905ede57a74092/rutarivofadobim.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bb9fa633cf7---12719426416.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16078405af0412---44189780228.pdf
- http://ferrogep99.hu/static/media/file/21989205921.pdf
- https://tmtteks.com/files/jafidibixomugepesizinewef.pdf
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/1a7b258bfeab24a47e44f8bcb51089e7/4710721640.pdf
- 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_off0000e75d.bin935872e6e922d8ddd47fbaad4c2fe5978904d4bc849edc38300524b8a66a56cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE75D | 17600 bytes |
font_01_sfnt_off00011418.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11418 | 16792 bytes |
font_02_sfnt_off00012c2f.bind1e11a383b894259d3787afcef1cd8b6185bd729ea65b2920635fba921d1cbbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C2F | 12000 bytes |
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