MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The PDF structure itself does not contain readable content, but the presence of external links and the overall detection profile point towards a malicious document designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://huntic.ru/uplcv?utm_term=breves+cuentos+hispanos+pdf
- https://mokhalasati.com/userfiles/files/wepuvajurakijemuxujowalo.pdf
- http://humansharehouse.com/userData/board/file/30525482212.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16134e613e8468---88871553365.pdf
- https://themalc.org/files/file/tasonake.pdf
- http://bioident.pl/photos_fck/file/dafusakugomuf.pdf
- https://icnj.net/ckeditor/ckfinder/userfiles/files/dufudezusobivune.pdf
- http://paroissedementon.fr/upload/files/midozunajup.pdf
- http://shengyaweb.com/uploadfile/file/2021091408332871.pdf
- http://dailynewsodia.com/assets/ckfinder/core/connector/php/uploads/files/josusawo.pdf
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/f7e8dc21bc98948f78392ab55bd50294/72387380475.pdf
- http://1qjd.com/upload/files/2021-09-14-13-03-33-BhrIrIeq.pdf
- http://coimbra.hu/uploads/ckfinder/userfiles/files/66816327169.pdf
- http://clairerolo.com/userfiles/file/paxelag.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613cac211c71b---7964831596.pdf
- http://irpuyesh.com/cache/fck_files/file/65192728706.pdf
- http://z500.si/files/piwemuferetelozogij.pdf
- https://stealthwindow.tw/uploads/files/202109162030515278.pdf
- https://eijo.in/ckfinder/userfiles/files/jibaboneferufujub.pdf
- https://vnycc.com/userfiles/file/86814280930.pdf
- https://ietc-oman.com/userfiles/files/zigivasemimawesujeladaser.pdf
- http://www.focitabor.hu/userfiles/file/90598694827.pdf
- http://fulns.com/uploadfile/fckedit/file/16308654813jns.pdf
- http://emeat.ru/var/files/legijuzisojusofadapo.pdf
- https://dsverano.com/UserFiles/File/nujuze.pdf
- http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/ziziv.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_off0000dd94.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD94 | 16792 bytes |
font_01_sfnt_off0000f5ab.bin4b2355ef3e0ac22e336c311ac58bba0537ab789e54578228e11b2392b13e2bfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5AB | 10892 bytes |
font_02_sfnt_off00010edb.binee7780ed31cda41600713023d38fe6276ce8753fbe9a2be025061a04d6f59ef7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EDB | 19304 bytes |
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