MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to disposable hosting and utilize UTM parameters, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and the overall structure indicate an attempt to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://synerhu.ru/uplcv?utm_term=free+fire+app+2020+download PDF link annotation
- http://precisionsurgicalworks.com/alpha/ckfinder/userfiles/files/dabofumesorop.pdfIn PDF document text
- https://sledovani2.gpshlidac.cz/www/userfiles/files/sotolujojikijunemugurek.pdfIn PDF document text
- https://candica.pl/ckfinder/userfiles/files/lejimenasatamavoj.pdfIn PDF document text
- http://autoset66.ru/admin/ckfinder/userfiles/files/papagadopaparagi.pdfIn PDF document text
- http://tlw.ro/UserFiles/file/wotosurijagoxinedu.pdfIn PDF document text
- https://rzfmuhasebe.com/userfiles/file/78968732337.pdfIn PDF document text
- http://jan-fotografie.nl/upload/files/dododapenuladunokolodi.pdfIn PDF document text
- http://beerskiboot.de/img/upload/file/jikogikejo.pdfIn PDF document text
- http://chromoink.com/updates/file/17698621437.pdfIn PDF document text
- https://almuhja.net/ckfinder/userfiles/files/74368203614.pdfIn PDF document text
- http://xn--80ab1a9a.xn--p1ai/sadm_files/vanixinapavagigas.pdfIn PDF document text
- https://www.gullyracing.it/admin/ckfinder/userfiles/files/72985863254.pdfIn PDF document text
- http://robfredo.com/userfiles/file/39767321606.pdfIn PDF document text
- https://greenways.at/userfiles/file/78515942503.pdfIn PDF document text
- http://cjmfgxfollow.morefriendship.com/upload/files/loxenawekivarajidaru.pdfIn PDF document text
- http://soleilboo.com/images/uploads/files/miritobolomawan.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/84994517677.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16308340946344.pdfIn PDF document text
- https://familienbilstrup.dk/userfiles/file/2484941233.pdfIn PDF document text
- http://showpalmedical.com/userfiles/29912916620.pdfIn PDF document text
- https://alaskaproauto.net/nbloom/fckuploads/file/rujakelozi.pdfIn PDF document text
- https://idealist.ro/userfiles/file/botoxukufokupumekunuj.pdfIn PDF document text
- http://poultech.net/d/files/74811741660.pdfIn PDF document text
- https://pabxlg.com/userfiles/file/82999109953.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe9a3a2f5a---losadajibiko.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_off0000e13a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE13A | 18144 bytes |
SHA-256: 7f5b161c86da6b19a9598e87f95b95beb59e5512d6985b14cdc4c55dd0468709 |
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font_01_sfnt_off0001104f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1104F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012866.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12866 | 10532 bytes |
SHA-256: ef0515f20a4bcb3ee69a1ebfb82e66e1f3a4833c2bd952ab7aca17b1cbe45a12 |
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