MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting, designed to lure users to external malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, suggesting an attempt to leverage SEO or compromised infrastructure for distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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=cleo+vehicle+spawner+gta+sa PDF link annotation
- http://jowinbio.com/upload/files/202109010533274157.pdfIn PDF document text
- http://quaint-house.com/images/blog/file/48453574364.pdfIn PDF document text
- http://baltic-rt.ru/ckfinder/userfiles/files/rewuvoz.pdfIn PDF document text
- http://wasserentkalkung.at/ckfinder/userfiles/files/9288883802.pdfIn PDF document text
- http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mavebasowaxemimaju.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c6837cec8---guwegezedojok.pdfIn PDF document text
- https://adesso-moosburg.de/images/file/giwaropuwitujibusitasa.pdfIn PDF document text
- https://solturism.ro/images/file/viriditizotezowo.pdfIn PDF document text
- http://oppedisanorobertosrl.com/userfiles/files/44364109176.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae7764844f---90534600144.pdfIn PDF document text
- http://daisytalavera.com/userfiles/files/mekubuwumebijowuxutofamo.pdfIn PDF document text
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/71536801471.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133160fe1c64---69548417584.pdfIn PDF document text
- http://chugguwang.com/files/fckeditor/file/79625542727.pdfIn PDF document text
- https://equalland.com/uploads/File/fisusujijupozezofivawug.pdfIn PDF document text
- http://zagazzo.com/userfiles/file/35488435973.pdfIn PDF document text
- https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/wawepemajalom.pdfIn PDF document text
- http://runwellconsulting.com/file/file/79877052788.pdfIn PDF document text
- https://hk-delight.com/UploadFiles/file/vubaruvesanumobalono.pdfIn PDF document text
- http://quangcaosms.org/media/ftp/file/7417211764.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_off0000c4cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dce1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCE1 | 19984 bytes |
SHA-256: c4c0ab1c6249d5211a0a75e84e4dac8190a2d62305e3d57bf090cb1bcf053840 |
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font_02_sfnt_off00011143.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11143 | 10836 bytes |
SHA-256: 95b0e77e483dc983018a056caf17315a2b0f3c0a074f822f3fd065b6b8f74c3e |
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