MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to host phishing content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://catamma.ru/uplcv?utm_term=ticket+order+form+listening+answers
- http://cyklo-sport-servis.cz/UserFiles/File/88497134412.pdf
- http://zhhyhb.com/uploadfiles/files/76807085099.pdf
- http://hk-keber.de/images/file/54489827011.pdf
- http://solarhomepage.ch/fckeditor/editor/images/file/gokisetadin.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0a848a3a3---kubikezivipisize.pdf
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/9it0546hbaur8d6s26l0ts6n69/66745280188.pdf
- https://its-bulgaria.bg/files/file/kibinofabaladikopokiza.pdf
- http://relaxzenter.com/uploads/files/46609276662.pdf
- http://gsemilia.it/userfiles/files/61348160491.pdf
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/fa8c48b92f5f98a09a1fdfedab0bfb53/85312793494.pdf
- https://underworldgear.com/admin/images/fckImg/file/kimowikuduvimewavisekaw.pdf
- http://guerrazzi.info/userfiles/files/2060301041.pdf
- https://tongdaidoanhnghiep.com/app/webroot/upload/files/3969292918.pdf
- https://banghenails.com/upload/file/bogokunabav.pdf
- https://baptistfriends.org/media/28185188701.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160904d00a9517---wurumogotopafak.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607de9152d67d---2514208759.pdf
- https://pima-alarms.net/slicice/file/34249699007.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9bb4bf1fb---natobozusidetani.pdf
- http://krikrik.ru/uploads/ckfinder/files/zujimopiseke.pdf
- https://imagebuzz.net/ckfinder/userfiles/files/nibusipejet.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/d0be6e0ad236bcf7313965ee28edc0a1/92758300442.pdf
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/4bb35e1126ddebbeedc3ab78e3338b14/34374263578.pdf
- http://westtech1963.com/clients/d/d4/d4250bc21dcbbf02d7f9bc68df143add/File/gelimederujugoneti.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_off0000c49d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC49D | 16792 bytes |
font_01_sfnt_off0000dcaf.bin3ebe863ab9c504c01b36278ef395dd83b07d3fa4b7e47700ca2b653bc623449e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCAF | 18816 bytes |
font_02_sfnt_off00010c48.binfd7e4e158afa9f03bf4975e165998a0d2199d743ad97ab43aa867abcd39f9b73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C48 | 10960 bytes |
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