MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also contains numerous external links, many pointing to PDF files on potentially disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download a second-stage payload or redirect users to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://lesen-und-schenken.de/userfiles/files/pamuzuzisesevarutamiweb.pdf In PDF document text
- http://mistral-paints.cz/userfiles/files/vebopasejesenonasopo.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/fiwemox.pdfIn PDF document text
- http://dongduong.net/Images_upload/files/gasulegejatomaki.pdfIn PDF document text
- http://cancunday.com/travela/img/files/64996221778.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/46695035498.pdfIn PDF document text
- https://sacc-la-chaux-de-fonds.ch/fichiers/file/fopopipavuv.pdfIn PDF document text
- https://aakritidigitals.com/userfiles/files/76662307394.pdfIn PDF document text
- http://envigest.cz/upload/file/14546040652.pdfIn PDF document text
- https://kop-trans.pl/uploads/userfiles/files/dafibefagivurepuma.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/17209197851.pdfIn PDF document text
- https://ristovski.mk/public_html/upload/userfiles/file/volubogarireve.pdfIn PDF document text
- http://immodraft.nrw/images/architekten_agentur_images_/file/zifaxetifobiwofes.pdfIn PDF document text
- http://fantacyhandicraft.com/userfiles/file/sukuduvakilerewojipene.pdfIn PDF document text
- http://www.santabriganti.org/admin/ckfinder/userfiles/files/55657829051.pdfIn PDF document text
- http://eapver.com/upload/ckimg/files/202109080344366455.pdfIn PDF document text
- http://minerva-collection.net/files/files/wovikupizafenuk.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613be11f4daed---fapewuvawukepi.pdfIn PDF document text
- https://empezo.xyz/js/ckfinder/userfiles/files/ritagutewuzolabiwu.pdfIn PDF document text
- https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/47375919386.pdfIn PDF document text
- http://stellar-toys.com/ckfinder/userfiles/files/8222086999.pdfIn PDF document text
- https://yp05.com/_UploadFile/Images/file/wefotujaziboru.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/ep4559qjoseaqfi49pbrpjuukn/19221841530.pdfIn PDF document text
- https://channeloflove.com/ckfinder/userfiles/files/70329843719.pdfIn PDF document text
- http://dgxzz.com/uploadfile/file/5318333196.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+to+download+files+bigger+than+4gb+on+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_off0000d651.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD651 | 10928 bytes |
SHA-256: 1f993cc41665322c14e8d21ed485543139b62607debc345a92e972f3fc17eb20 |
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font_01_sfnt_off0000ef69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF69 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001077b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1077B | 18220 bytes |
SHA-256: 49b1af1658ce3f21f07018289a2d13bb15ac20b3586d4c465114d4901efa2562 |
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