MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous URLs pointing to potentially compromised WordPress upload directories, as indicated by the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16085ed42da8a2---lepimisafixeguwapanopefen.pdf In PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606ec7036c381---27408121496.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0e9d94b1e3---waronubamupod.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609cdc798b096---78355091207.pdfIn PDF document text
- https://primer-spb.ru/files/files/53289066790.pdfIn PDF document text
- http://azizolace.cz/images/file/fuvow.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/68jmi10ubcn2163hk8u22v75r3/jenimugugotasomex.pdfIn PDF document text
- http://orderleesushi.com/uploads/files/fukerodusibo.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608a010ede9a9---4934667194.pdfIn PDF document text
- http://www.heksan.com.pl/file/jaxotabatubew.pdfIn PDF document text
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/sktk8u7uum23gvjc65g8nmf413/66969847699.pdfIn PDF document text
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/23525fb07b4270fda8aceaefb1e4be79/povekoletepobisi.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba68c1821eb---52672547889.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/6a530b1307681a676e334cc2c163004d/68175982752.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/24448fe3e52f13b6961560c4c4a645a6/fexobeb.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f3bdd6468a9---13362703488.pdfIn PDF document text
- https://medtek.vn/storage/file/bijesokedo.pdfIn PDF document text
- http://northmarking.com/userfiles/files/wuwafogafadejijumigufo.pdfIn PDF document text
- http://clingac.com/d/files/buwetivukadudodapanob.pdfIn PDF document text
- http://valleypainclinic.org/userfiles/file/dojetuxikuvur.pdfIn PDF document text
- http://lovelyspa.net/ckfinder/userfiles/files/27399586585.pdfIn PDF document text
- http://banghetretunhien.com/media/ftp/file/razaterojigox.pdfIn PDF document text
- http://www.gpkoaee.ru/ckfinder/userfiles/files/ligudenibupuvubu.pdfIn PDF document text
- https://khanikango.in/file/fufuzesibinisofi.pdfIn PDF document text
- https://tese.in/ckfinder/userfiles/files/vipofexad.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=olimpiadi+di+italiano+prove+pdf+2018PDF link annotation
- 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_off0000e330.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE330 | 17832 bytes |
SHA-256: 82d07a376a33af0da2dfd1a1924bf0a392d328ad436e0cba0a19f29b3325a454 |
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font_01_sfnt_off00011116.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11116 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001292d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1292D | 11084 bytes |
SHA-256: 274a6c13192880fca32cd8500892b59f98ceb7775a8597f45c8b57bb8b9c8d78 |
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