MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious PDFs. It also contains numerous links to external websites, several of which are hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://tiga.co.th/ckfinder/userfiles/files/sozimusazojar.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161369092e2d5b---xazixuzimudezupama.pdf
- http://www.seminariomenorvalencia.com/admin/lib/ckfinder/userfiles/files/kifixuwefelimak.pdf
- https://escritacontabilidade.net/fotos/news/file/24235472164.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/nln8flpv1993bc1q9c9iii38d7/36134147134.pdf
- http://morakothotel.com/file_media/file_image/file/40166338476.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161450c664884d---61814836343.pdf
- http://schule.havonix.com/ckfinder/userfiles/files/wumetib.pdf
- http://dreiseengrundschule.de/files/77579398519.pdf
- http://www.gc-antey.ru/ckfinder/userfiles/files/72062491368.pdf
- http://gardenofsound.com/userfiles/files/ruvopakekijoruvejelazal.pdf
- https://lexconsulting.ro/webroot/files/media/99811313643.pdf
- https://workinhotel.com/upload/fckfile/3169188051.pdf
- http://camelliafb.com/uploads/files/202109120909237480.pdf
- https://bya-ingenieria.com/ckfinder/userfiles/files/53073125517.pdf
- https://laznia-radom.pl/userfiles/file/77205107709.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/967ba1f3970192a0fe974351f22c1f12/jomoviserawijajelepo.pdf
- http://pazzo.jp/js/upload/files/bonipufiliradopusanoxu.pdf
- https://proektasis.gr/admin/spaw2/uploads/files/7872096677.pdf
- https://cylinder96.ru/admin/ckfinder/userfiles/files/21554956442.pdf
- https://nhatngudongkinh.com/upload/ckupload/files/gadadizefipowobubowuna.pdf
- http://vistobrasil.net/uploads/file/43661999398.pdf
- http://daiwavn.com/uploads/image/files/77850523435.pdf
- http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/m9to24ba0s28c5rv0pjcjuj5mu1je3ct/51340183669.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=apa+itu+debug+gpu+overdraw
- 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_off0000b8b9.binc4e13c63ceb15e8bde07f39cd5c7aa262fded8d0ccccea84df08282ddbf5a52a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8B9 | 10624 bytes |
font_01_sfnt_off0000d0c7.binaab0a31b73ffb22bfe38717dd38eb2b542f2f68dc28e30f2f3b8cc974201a180 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0C7 | 17768 bytes |
font_02_sfnt_off0000fe50.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE50 | 16792 bytes |
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