MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was flagged by a machine learning classifier and ClamAV as malicious, with ClamAV identifying it as a phishing trojan. Numerous external URLs are embedded within the PDF, suggesting a phishing or malware distribution campaign. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using many distinct hosts with few links each, typical of link farms designed to obscure malicious destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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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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://mariapolis.es/ckfinder/userfiles/files/bujofovazebikidelimuna.pdf In PDF document text
- http://tubesealer.com/uploaded/file/11568074946157815c3bd18.pdfIn PDF document text
- https://opsclown.it/ckfinder/userfiles/files/ruruzejobenowudamop.pdfIn PDF document text
- https://skvely-kup.cz/files/file/50563218323.pdfIn PDF document text
- http://bfcy88.com/uploads/files/zakup.pdfIn PDF document text
- http://rasmesafar.net/basefile/basefiles/5795322833.pdfIn PDF document text
- https://www.tahitotfalu.hu/ckfinder/userfiles/files/38039681786.pdfIn PDF document text
- http://dxczx.com/ckfinder/userfiles/files/20210913_162707.pdfIn PDF document text
- http://101balkon.ru/upload/files/93450848728.pdfIn PDF document text
- http://halmar.info/userfiles/file/46386824042.pdfIn PDF document text
- http://pinxedien.net/upload/files/fetelaturodosuv.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/43117452118.pdfIn PDF document text
- https://tourgardan.com/basefile/tourgardancom/files/93775895169.pdfIn PDF document text
- http://gzhangqin.com/uploadfile/files/zugadekokeweku.pdfIn PDF document text
- https://cardolf.ro/files/kikoxomefajazelakaxuw.pdfIn PDF document text
- https://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/49809511654.pdfIn PDF document text
- https://www.peltonfell.org.uk/ckfinder/userfiles/files/kopedukofajelogukuxamimuk.pdfIn PDF document text
- http://bjxbw.cn/userfiles/file/13182149038.pdfIn PDF document text
- http://sushiloverca.com/uploads/files/fusovafutisuperu.pdfIn PDF document text
- http://softwarefactory.nl/images/file/5855541524.pdfIn PDF document text
- https://zohopinler.com/calisma2/files/uploads/18316505543.pdfIn PDF document text
- http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/sasesolopugakalatugepov.pdfIn PDF document text
- https://juniorclublivorno.com/sitonews/images_upload/files/lugusoji.pdfIn PDF document text
- https://www.profiemg.cz/upload/ck/files/bunatotugurojoxosu.pdfIn PDF document text
- http://elitakhealing.com/ckfinder/userfiles/files/303400779.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=number+system+simplificationPDF link annotation
- 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_off0000b471.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB471 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC83 | 15960 bytes |
SHA-256: 5ee71a69a8d8aee5314eb176f8f29b682e6f06e5667b468ee46be69ccaff91ac |
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font_02_sfnt_off0000f4ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4EF | 10972 bytes |
SHA-256: 856a41d07426f20f22f367c90e96b50b38e233fa44b3b839ed7c42383b80f4c0 |
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