MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to websites hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://synerhu.ru/uplcv?utm_term=how+to+connect+bluetooth+tethering+to+laptop PDF link annotation
- http://mentor-tutor.com/newGroserLikeProject/uploads/files/genewaxiki.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/1425dd6a399baf79cea18735d4998404/vimejitisiwepane.pdfIn PDF document text
- https://daulte.ch/ckfinder/userfiles/files/fujowubuvosase.pdfIn PDF document text
- https://aep-tc.com/cache/fck_files/file/30746481432.pdfIn PDF document text
- https://ou-ravda.com/ckfinder/userfiles/files/gixewedirujewuri.pdfIn PDF document text
- https://psychotherapie-coeppicus.ch/upload/file/89638475045.pdfIn PDF document text
- http://www.pics4us.de/userfiles/file/15726661210.pdfIn PDF document text
- https://mokhalasati.com/userfiles/files/44214578143.pdfIn PDF document text
- https://wildnaturetravel.com/File/zogepogebitamigenibid.pdfIn PDF document text
- http://www.psoealora.es/ckfinder/userfiles/files/30641211335.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/23068944456.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131240ee740c---44648460536.pdfIn PDF document text
- http://usatovl.ru/upload/fckeditorfile/88118710320.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/3c6c66648b92ead1e46da6667147f807/rakamezokirolexar.pdfIn PDF document text
- http://godsownproperties.com/userfiles/file/negeforurafupasiwomifoful.pdfIn PDF document text
- http://syuncyoku.jp/upload/file/57195600348.pdfIn PDF document text
- http://anthonyvienna.com/sites/default/files/file/lazosakibu.pdfIn PDF document text
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/pmbpbgsgpudaq1eq0n3vr29q9p/84221443921.pdfIn PDF document text
- https://spcinternational.in/ckfinder/userfiles/files/72096778865.pdfIn PDF document text
- http://mindentudor.hu/userfiles/file/89755488992.pdfIn PDF document text
- http://usairsprings.com/userfiles/file/16991148654.pdfIn PDF document text
- http://paradisoseminatrici.it/userfiles/files/10812018709.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_off0000dee2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEE2 | 18964 bytes |
SHA-256: 85fa2e31c78379fefb338e56e6f5cec2ce78b69bdb5382e77aed4c479bf2bf69 |
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font_01_sfnt_off00011014.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11014 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001282b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1282B | 10804 bytes |
SHA-256: 25fc672aac5520d28bf307b6a6d5329a3e4b1d2c4a2b66a8c6720db78d9f79dd |
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