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 hosts a large number of external URLs, many of which are linked to disposable domains and appear to be part of a link farm designed to redirect users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://catamma.ru/uplcv?utm_term=after+we+collided+streaming+fran%C3%A7ais PDF link annotation
- http://kondicionery-noginsk.ru/upload_picture/file/makapitufodoxapukow.pdfIn PDF document text
- http://eqletstalk.com/uploads/files/202109012146525735.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401a7cb65b9---juzemubudunofikonufesozeg.pdfIn PDF document text
- http://conservativista.com/js/ckfinder/userfiles/files/tubakuzinojuminemonani.pdfIn PDF document text
- http://penetrat.ru/files/files/gadine.pdfIn PDF document text
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141d107bd731---77516160823.pdfIn PDF document text
- http://cnmrobotics.com/files/files/44663606225.pdfIn PDF document text
- http://ordineveterinarivenezia.eu/userfiles/files/wizadatewowa.pdfIn PDF document text
- http://temdientu.vn/images/ckeditor/files/gizulowuzotufefupunixilut.pdfIn PDF document text
- http://www.deep2001.com/images/library/File/buwabokaluwidufozanozuro.pdfIn PDF document text
- http://asea-admin.com/_userfiles/file/20210906160158.pdfIn PDF document text
- https://inprovitparaguay.com/ckfinder/userfiles/files/71317795397.pdfIn PDF document text
- http://wawa757.com/uploads/files/ridafexadipi.pdfIn PDF document text
- http://amexeuro.com/an3_Uploads/file/basapozefasoxax.pdfIn PDF document text
- http://happy-land.hu/editor_up/juxoza.pdfIn PDF document text
- https://ww150006.linebot.net/upfile/files/20210903193236.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/57213846824.pdfIn PDF document text
- https://silatur.com/js/ckfinder/userfiles/files/25322324484.pdfIn PDF document text
- http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/laned.pdfIn PDF document text
- http://aromaonly1.com/yamituki-n/uploads/files/16669938559.pdfIn PDF document text
- http://myucpb.com/userfiles/file/kavusukevego.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_off0000dcfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCFD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f514.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF514 | 11084 bytes |
SHA-256: ae1f68e864b4ae4bee67bfc6ece04e7265a74e9a31f06157ebe090feeb9a0540 |
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font_02_sfnt_off00010e77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E77 | 20116 bytes |
SHA-256: 9672840e3304431b6fa138f1da097507ad1171f69ed7684735ada3da1e7208a3 |
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