MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirms the nature of the URLs as a link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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=ford+mustang+shelby+fastback
- https://clumba-indoor.ru/files/files/nomozuzalewipulujifamifa.pdf
- http://techcessgroups.com/userfiles/file/8834986349.pdf
- https://ndmoyun.com/calisma2/files/uploads/xobowefogevizulujibejema.pdf
- http://makeyourpartnermelt.com/userfiles/file/84421257074.pdf
- http://www.samuitns.com/image/upload/File/46065489358.pdf
- http://warmistore.com/userfiles/file/zenodesozaj.pdf
- http://drsrkbedcollege.com/ckeditor/ckfinder/userfiles/files/66848303583.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16144ba6910216---ledinavawaku.pdf
- http://belloverde.net/emailer/file/makejefa.pdf
- http://rana-international.com/userfiles/files/21569586205.pdf
- http://mindentudor.hu/userfiles/file/98565096269.pdf
- http://canoeing.by/pics/files/pugotuxeneg.pdf
- http://bbu.vn/Images_upload/files/83013473849.pdf
- http://ultrabeauty-ff.ru/userfiles/file/37209810965.pdf
- http://dautuck.com/uploads/userfiles/file/kojuninosetamunaduzaxasun.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/161583df02959a---jaboxinibub.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16136877546a04---45813202578.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16153751ec1a83---81347165868.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/9fa31ced0e650680c62f5acc22db43b7/90362370056.pdf
- http://houstontca.org/Content/uploads/files/mumumugokuvite.pdf
- https://angkaganjil.com/contents/files/fejiwo.pdf
- http://hvezda-pardubice.cz/files/file/76148424402.pdf
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/42334364038.pdf
- https://estduquebec.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/jorifunapebozepinikomi.pdf
- http://arci-mp.fr/admin/File/gigegunupokuvomupis.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_off0000b4bd.binf126989b152fb5e8ea2bc2aa22fc75ff14f53be9ce372550131f342877cedc86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4BD | 14824 bytes |
font_01_sfnt_off0000d99f.bin2882037cf0240f240e72f631135cbf0b7556bb2e7bf0bb238ca2b72efc136c12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD99F | 11252 bytes |
font_02_sfnt_off0000f3b2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3B2 | 16792 bytes |
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