MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous external URIs pointing to disposable domains, suggesting a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://tevav.co.za/YmrXLWy8?keyword=cdisc%20sdtm%20implementation%20guide%203.%203%20pdf%20file%20download%202017 PDF link annotation
- http://net-work.cz/data/file/89454903538.pdfIn PDF document text
- https://urbanlivin.lu/userfiles/files/72583739578.pdfIn PDF document text
- http://callbells.com.ua/kcfinder/upload/files/74773669851.pdfIn PDF document text
- https://toscanafantastica.com/userfiles/file/kufarodixegoxoxuxujazon.pdfIn PDF document text
- http://omorits.jp/uploads/files/34753504073.pdfIn PDF document text
- https://gedayapi.com/userfiles/file/niduwexunupegunegerikozaz.pdfIn PDF document text
- https://rovividupezudu.weebly.com/uploads/1/3/4/3/134373795/nubajetozajaxoxobew.pdfIn PDF document text
- https://trungtamchonggia.ttchg.com/kcfinder/upload/files/fodaxixanajinejijenofujas.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16224341ca4e56---21067500758.pdfIn PDF document text
- http://conservativista.com/js/ckfinder/userfiles/files/sigedelanipexisise.pdfIn PDF document text
- https://disemorabegelam.weebly.com/uploads/1/3/1/3/131383982/vuriseliremetaxa.pdfIn PDF document text
- http://tnet.site/kcfinder/upload/files/22520226501.pdfIn PDF document text
- http://av72-reklama.ru/userfiles/file/16516110071fbba2303ff5a22e8c75.pdfIn PDF document text
- http://sieuthivatlieuhoanthien.com/upload/files/pixuxisuferowuluzimike.pdfIn PDF document text
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/57095493107.pdfIn PDF document text
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d0c20851e9---52322953732.pdfIn PDF document text
- https://mudatikijamowa.weebly.com/uploads/1/3/1/4/131408537/f9b1ff3.pdfIn PDF document text
- https://lirowutezi.weebly.com/uploads/1/3/4/6/134696369/f0fec3b40cb.pdfIn PDF document text
- http://kanizsakran.hu/userfiles/file/29195469008.pdfIn PDF document text
- https://janelexireretof.weebly.com/uploads/1/3/4/6/134630470/4780378.pdfIn PDF document text
- https://sydneystudytour.com/accounting/userfiles/file/17006153744.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_off0000ac68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC68 | 16936 bytes |
SHA-256: fbea1f9d5a8b9207fbd81988bffcf376ec1668d763b11546c12e62b24e9b48a0 |
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font_01_sfnt_off0000d841.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD841 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f058.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF058 | 11660 bytes |
SHA-256: 44b9161b63adc668a24c3f458bfa61588c31d4c63a9f31b1d82530aae180ab2e |
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