MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Numerous URLs were extracted, many pointing to compromised or disposable hosting, suggesting a link farm designed to lure users to malicious sites. The presence of multiple PDF-specific heuristics related to URI and link farms further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://inwebjor.ru/uplcv?utm_term=download+dead+by+daylight+mobile PDF link annotation
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/dotuvepiwimenovo.pdfIn PDF document text
- http://martonaroniskola.net/userfiles/file/jexolis.pdfIn PDF document text
- http://kerama.altrodesign.eu/ckfinder/userfiles/files/tapepakopegasivawew.pdfIn PDF document text
- http://www.primariasantana.ro/uploads/file/20968998643.pdfIn PDF document text
- http://kwong-cheong.com/userfiles/lagit.pdfIn PDF document text
- http://vimbark.sk/editor_uploads/files/zexupekumazo.pdfIn PDF document text
- http://ttmm.co.jp/ckfinder/userfiles/files/xizokuzagewoxado.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/ac4bf9c99caf0b822b524944d37978d1/96527710729.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/40582286761.pdfIn PDF document text
- https://alternativecarrepair.nl/userfiles/file/buvoxevufupebirigega.pdfIn PDF document text
- https://dpengineerindia.com/admin/userfiles/file/8132176487.pdfIn PDF document text
- https://filetorme.com/upload/files/90832043991.pdfIn PDF document text
- https://heritran.vn/uploads/news_file/8723925547.pdfIn PDF document text
- http://mazdooradda.com/userfiles/file/31287915027.pdfIn PDF document text
- https://somogyplusz.hu/files/71159142706.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142a5c6eb268---60409547822.pdfIn PDF document text
- https://vibingvibes.com/userfiles/files/ravuvubuduwawam.pdfIn PDF document text
- https://bruceleevideos.org/images/file/45670190786.pdfIn PDF document text
- http://pttaccounting.com/userfiles/files/40049990111.pdfIn PDF document text
- http://pro-roubenky.cz/UserFiles/File/49973664621.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0af24b649---7159600112.pdfIn PDF document text
- http://banphimchuot.com/userfiles/file/wonebulufebipelas.pdfIn PDF document text
- http://thumpamonpally.com/userfiles/file/kutozitelotokuxinaki.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_off0000d49d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD49D | 17216 bytes |
SHA-256: 9b42b58286bc2408da1eeeda1d2e3355165e89c7c23bce1806fba1b780188502 |
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font_01_sfnt_off000100e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100E5 | 10768 bytes |
SHA-256: 47f8cd897c287d53d709cca445f252d76a6fb0f3ff81e9d46b37601ba4920c50 |
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font_02_sfnt_off00011942.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11942 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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