MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous embedded URLs that point to various domains, many of which appear to be part of a link farm designed to redirect users. The presence of compromised CMS upload links and disposable hosting further indicates a malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://nomylo.ru/uplcv?utm_term=apache+poi+excel+to+pdf PDF link annotation
- http://cleanking.net/userData/board/file/3408821808.pdfIn PDF document text
- http://aokunoil.com/ckfinder/userfiles/files/71914478227.pdfIn PDF document text
- https://baoyi-chuck.com/ckfinder/userfiles/files/86101719246.pdfIn PDF document text
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/64826105139.pdfIn PDF document text
- http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/37149423069.pdfIn PDF document text
- http://prunay-en-yvelines.fr/ckfinder/userfiles/files/82475641704.pdfIn PDF document text
- http://symbioticlifetech.org/attfile/fckimg/file///2021090825943_1008572384.pdfIn PDF document text
- https://zlatartopalovic.rs/files/kebisupefazonopo.pdfIn PDF document text
- http://www.angels-rest.es/ckfinder/userfiles/files/51174465144.pdfIn PDF document text
- https://sharkovinkom.com/sharkovinkom.com/ckfinder/userfiles/files/gilofapugalawajoxomuxim.pdfIn PDF document text
- http://www.mamafoundation.cz/ckfinder/userfiles/files/37197107599.pdfIn PDF document text
- http://pvvc.cz/files/kafarumogodarisudez.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613405840a051---16609762913.pdfIn PDF document text
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2792b9f8ca2f2eb3618df10ef6f8f569/1817246102.pdfIn PDF document text
- http://jun-travel.com/userfiles/file/82817319204.pdfIn PDF document text
- http://renknh.com/ckupload/files/lezeboxev.pdfIn PDF document text
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/rebujuwapomosot.pdfIn PDF document text
- https://daquin-ferriere.fr/userfiles/file/77577981361.pdfIn PDF document text
- http://olddieselparts.com/ckfinder/userfiles/files/wixejiwukoluwutiz.pdfIn PDF document text
- https://rafaela-motores.com/userfiles/file/tojumanavaxifofekixo.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e84d7a92e---28005769804.pdfIn PDF document text
- http://rustproofingottawa.com/userfiles/file/62900414666.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_off0000b615.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB615 | 16504 bytes |
SHA-256: 373960762bf8c9967ca17677a9245daf4bdded864022e16bc666f0a26c773479 |
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font_01_sfnt_off0000e16c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE16C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f983.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF983 | 10428 bytes |
SHA-256: 6d2efe30ec1059626bac57eaf3434e9997a11cb9d4ef543ddc2d5b270a73d2b6 |
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