MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for executing malicious code. The PDF also contains numerous external URIs, many of which point to potentially malicious domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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 http://teraval.cz/res/file/kakexuboloxuk.pdf In PDF document text
- https://deverfgrossiercms.deindrukdemo.nl/upload/files/23872299449.pdfIn PDF document text
- https://grootformaatspandoeken.nl/userfiles/file/48960459509.pdfIn PDF document text
- https://mbp.hastatis.com/mbp/upload/images/images/upload/ckfinder/82266429657.pdfIn PDF document text
- http://angel-conference.org/upload_fck/file/2021-9-17/20210917202453381520.pdfIn PDF document text
- http://marienoellebermond.com/img/uploaded/file/35264313564.pdfIn PDF document text
- https://fasleh.net/Files/files/90099415003.pdfIn PDF document text
- http://saydersan.com/firma/files/vumusobazozeludivebukib.pdfIn PDF document text
- http://logiccpacma.com/ckfinder/userfiles/files/74686680513.pdfIn PDF document text
- http://duetsepolno.pl/userfiles/file/zufubit.pdfIn PDF document text
- https://ezastupitelstvo.sk/editor_uploads/system/files/15669818080.pdfIn PDF document text
- http://amrapalispot.com/userfiles/file/16654550371.pdfIn PDF document text
- http://www.ocptecnology.com/admin/uploaded/fck/file/29173393753.pdfIn PDF document text
- http://tkhomedeco.com/assets/uploads/ckedit/files/20210924160946.pdfIn PDF document text
- http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/xodoponavefapesuba.pdfIn PDF document text
- http://red-persimmons.com/upfiles/editor/files/tezoresikitebikalekolagog.pdfIn PDF document text
- http://ipceurope.com/assets/file/96179830138.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/muwexajijobokelav.pdfIn PDF document text
- https://betalinktech.com/blmedia/file/wamizaperadofimuguwida.pdfIn PDF document text
- http://surmounttravel.com/userfiles/files/tamiwuligewunarejonelobuk.pdfIn PDF document text
- http://bkht.vn/userfiles/file/33854989134.pdfIn PDF document text
- http://clickvay.com/upload/files/zararaxon.pdfIn PDF document text
- http://araratmebel.ru/img/file/60428522657.pdfIn PDF document text
- https://norservis.cz/files/files/10620098220.pdfIn PDF document text
- http://freeorden.com/media/file/40418211456.pdfIn PDF document text
- http://salsainkonstanz.de/media/files/pabunadikunofaratulebusuw.pdfIn PDF document text
- http://tjchenxing.com/filespath/files/20210910174940.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=application+is+not+installed+on+your+phonePDF 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_off0000b29c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB29C | 16008 bytes |
SHA-256: e545f807fb606625f3f665a85d23f0d79cfb1ed7790b88cef7415fcb05fa422c |
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font_01_sfnt_off0000db30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB30 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f347.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF347 | 10808 bytes |
SHA-256: daa13131d8a9566320ec3dbc925c9dfe85f9be01673751244516d0c6ce411e7b |
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