MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised websites, likely intended to lure users into phishing scams or download further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links, increasing the likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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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://wastran.ru/uplcv?utm_term=chapter+4+qualitative+research+interview
- https://n-zvuk.ru/upload/file/32229450358.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bf4b2532812---tuxoz.pdf
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/273a1e7e28327b08afb20cac6ae137be/7351728412.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/erlusp7g7rn42pa8a9dqff1i4h/1062377583.pdf
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/d65ea289ceffce665a996dd015b08d02/fofuko.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ac58b33cd4f---72942594970.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4466e3ff3---godidubofanasodifupep.pdf
- https://xo-sound.ru/userfiles/file/nujamolumibar.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/kb0joc25r1jvlqmkaeld8s0kd5/napunijagag.pdf
- http://dalboncostruzioni.it/userfiles/files/dogozufol.pdf
- http://www.aluvascientific.com/UserFiles/file/23176779288.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba09ce2b8c---6047896625.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088bf8d673a3---wugonakelawuzafasakaw.pdf
- https://penzionradvanice.cz/res/file/16605499596.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0b48cf2b0---73146999261.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/2c1b91cf30e79324817e1005e9f205c9/29615786496.pdf
- https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/15de976eknc27509453u09oti0/46594201827.pdf
- http://wagnerfamilyreunion.com/clients/866685/File/farapakesu.pdf
- https://alamansyria.com/userfiles/file/vekegatanavuwemulagiw.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a1349535a---3956970381.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_off0000e9fa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9FA | 16792 bytes |
font_01_sfnt_off0001020c.bin89433ce8d5794f7c1ccf0254718fbafad5c9e93235bc9b50a399d6b4a7caa434 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1020C | 18200 bytes |
font_02_sfnt_off0001321b.binc4b2e275c0130bd9381e777c62e79c703eb2c04acb3fd7f99c916758a54b216a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1321B | 10856 bytes |
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