MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting. These links form a link farm, suggesting an attempt to redirect users to malicious content, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://catamma.ru/uplcv?utm_term=real+racing+game+download+apk PDF link annotation
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161305ed80f2bf---niribuxukorexenobuxesi.pdfIn PDF document text
- https://kenhquangcao.vn/uploads/files/99785868933.pdfIn PDF document text
- https://yuanfuconstruction.com/ckfinder/upload/files/ravifaronutasumopajuka.pdfIn PDF document text
- https://colegiumaniucarei.ro/ckfinder/userfiles/files/gilewegasilenosol.pdfIn PDF document text
- https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/latepalejinabefumib.pdfIn PDF document text
- http://hglobaltour.com/FileData/ckfinder/files/20210903_B0C320B07079C89B.pdfIn PDF document text
- http://s2ipower.com/survey/userfiles/files/jozotisivaf.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/08ecf76b32af8bf751aa8086ebeb4b9c/xazitaxedu.pdfIn PDF document text
- http://stroytehcentr.ru/images/file/biger.pdfIn PDF document text
- http://strandedtattoo.com/file/levudujofawozadu.pdfIn PDF document text
- https://lyubomiradineva.com/files/file/wemix.pdfIn PDF document text
- http://robbes.nl/media/files/wepuz.pdfIn PDF document text
- https://cristalparkhotel.com/ckfinder/userfiles/files/93306755247.pdfIn PDF document text
- http://pro-roubenky.cz/UserFiles/File/gagixivoxelexusepenuvagib.pdfIn PDF document text
- https://ikincielinmak.com/upload/ckfinder/files/22830784563.pdfIn PDF document text
- https://xn--49st2et51duvk.com/upload/files/5675031730.pdfIn PDF document text
- http://hydrem.ru/images/file/kusexigafezujivuzimavak.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/luvofovov.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/ha0cfmvj80ci2vu8ede156go5d/zumosiga.pdfIn PDF document text
- http://archidaldegan.eu/userfiles/files/sureximi.pdfIn PDF document text
- https://promaxsuspension.com/csmimage/file/tujidikuto.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/1i7bso4ctaa4k2vqjfnddld6m7/mulewokelasuraxoni.pdfIn PDF document text
- http://valdhans.cz/userfiles/file/pusowuzexabe.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_off0000ea9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA9A | 17948 bytes |
SHA-256: efdd61a3531458391f1d4d49ad3ecb9d9b710dbc4f37e4ba8974d6b0e790aebb |
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font_01_sfnt_off000118fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118FB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013112.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13112 | 10812 bytes |
SHA-256: 48cd258b29d08e8c2fa98626cb10faef7ee4afcf72289125d7bb546192bd0213 |
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