MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs, some hosted on compromised WordPress sites. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggest an attempt to distribute phishing content or malware through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
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://queure.ru/uplcv?utm_term=toutes+les+th%C3%A9ories+du+management+pdf PDF link annotation
- http://www.pattyn360.com/upload/forum/files/seposidubisisir.pdfIn PDF document text
- https://confeccionesruiz.cl/UserFiles/File/lewaloverozuxopagoxamuv.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607add2a90de9---tirilaregibugiralolefax.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-8-21/20210821090507604142.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/fbf5b6c7ca8ad7819043a5157ebea1d9/diboronuroxovadosulufuzu.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac42a58389---suziwudujagozogegokaz.pdfIn PDF document text
- http://xn--2-140-swe8h.xn--p1ai/files/95180260450.pdfIn PDF document text
- https://turkihale.com/userfiles/file/In PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d5bddd5d376---zakitiwosagigawofomo.pdfIn PDF document text
- http://compufoxmail.com/userfiles/file/misuzev.pdfIn PDF document text
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/8ea65d8152160e93f485e2b15b9c4104/rixuselofowaxuvavaxe.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc79cd0d6ae---24650740219.pdfIn PDF document text
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/fefad46bc36b4c9a0c4420e8d039be6f/fuwefekab.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/de7001ffaf1f1875c37ae6cadb265ba3/42739116551.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/317f8qhs9lt2i7ld1h0t26f91l/75467076593.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160946832d732a---83464431531.pdfIn PDF document text
- https://insp.biz/img/file/11069462829.pdfIn PDF document text
- https://am-system.eu/ckfinder/userfiles/files/54611647528.pdfIn PDF document text
- http://mrbossamktown.com/uploads/files/tukope.pdfIn PDF document text
- https://charming-dc.com/uploads/files/202108211944116156.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1611ad39a6a410---92272879796.pdfIn PDF document text
- http://sutphinsgermanshepherds.com/clients/21958/File/38558439892.pdfIn PDF document text
- http://visit-pune.com/userfiles/file/24705343534.pdfIn PDF document text
- http://hoangnamjsc.com/upload/files/2422728679.pdfIn PDF document text
- 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_off0001ae43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AE43 | 23020 bytes |
SHA-256: 57cb69ce192099fbf42a22b3ead1b2b37150f4c08d07911aacbc927c84d8f43f |
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font_01_sfnt_off0001e60f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E60F | 11164 bytes |
SHA-256: 22b27f5f929d598cdc92a4973715110236d95f898bae51be35f8d4e07232dd48 |
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font_02_sfnt_off0001ff71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FF71 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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