MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external URIs, many pointing to potentially disposable domains, suggests a phishing or credential harvesting attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the PDF is structured as a link farm on disposable hosting to obscure its true purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1613052ce3bdd9---wexuga.pdf In PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-9-6/20210906065802814674.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/67dd5fc6d049bd61b77b293c6b89082d/ragasomijesim.pdfIn PDF document text
- http://dealershop.es/camarasegovia/userfiles/file/40867492669.pdfIn PDF document text
- https://jancsoalapitvany.hu/ckfinder/userfiles/files/34808430642.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/92706606510.pdfIn PDF document text
- http://virus-safe-zone.com/ckupload/files/foloxa.pdfIn PDF document text
- http://bbhshipyard.com/userfiles/file/68269647144.pdfIn PDF document text
- https://berbagiangka.com/contents/files/bosaniliru.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/58637057875.pdfIn PDF document text
- http://lpc2529.com/piceditor/file/bobatisudewedepimutem.pdfIn PDF document text
- http://enjoyisagenix.com/ckfinder/userfiles/files/jigewanukatud.pdfIn PDF document text
- http://mediedil.eu/userfiles/files/sekopupibugetosovabukej.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/eci66qico3unnvt3q8g6q1ln8l/sotoli.pdfIn PDF document text
- https://indicaperu.com/userfiles/file/xipuvenofin.pdfIn PDF document text
- https://www.alitec.es/js/ckfinder/userfiles/files/xezisimimur.pdfIn PDF document text
- https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/pusizexunijij.pdfIn PDF document text
- https://echipamente-scule.ro/userfiles/file/27157051367.pdfIn PDF document text
- https://andana.us/files/files/31567212802.pdfIn PDF document text
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/75148036210.pdfIn PDF document text
- https://itracmediav5.com/ckfinder/userfiles/files/3064134155.pdfIn PDF document text
- http://ncteonline.com/userfiles/file/nogimovafes.pdfIn PDF document text
- http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/67476285382.pdfIn PDF document text
- http://medtravel.pro/images/hand_uploaded/files/4515939496.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/49855188686.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=survival+multiplayer+androidPDF 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_off0000d947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD947 | 18432 bytes |
SHA-256: e679cf907c2bc0bfe42fbdd2acc7e74722edef109a6ea1b0f8405b1dacd372e0 |
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font_01_sfnt_off00010949.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10949 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012160.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12160 | 10740 bytes |
SHA-256: 6a52199775c4dde5fa9a17871fc503f99da31f76728aff5ae96be8bb02e1bdcf |
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